Ein Paarvergleich findet Originalpassagen, die den anderen Wirkstoff wörtlich nennen. Aussagen gelten für das jeweilige Präparat und seine Formulierung. Klassenbegriffe und abweichende Synonyme können fehlen. Kein Treffer bedeutet nicht, dass keine Wechselwirkung besteht.
RxNorm 05-Oct-2026 · geprüft 2026-10-25 · 1009 Präparate · 54812 Quellenpassagen · 148 strukturierte Aussagen. Automatisch aktualisiert, ohne menschliche Freigabe.
Gegenanzeigen · Norvir
Norvir 100 mg powder for oral suspension · Abschnitt 4.3 · PDF-Seite 5
HOS-086159 · Präparat HOS-083284
Microsomal Lomitapide Increased plasma concentrations of lomitapide
triglyceride transfer (see section 4.5).
protein (MTTP)
inhibitor
PDE5 inhibitors Avanafil Increased plasma concentrations of avanafil
(see section 4.4. and 4.5).
Sildenafil Contraindicated when used for the treatment of
pulmonary arterial hypertension (PAH) only.
Increased plasma concentrations of sildenafil.
Thereby, increasing the potential for sildenafil-
associated adverse events (which include
hypotension and syncope). See section 4.4 and
section 4.5 for co-administration of sildenafil in
patients with erectile dysfunction.
Vardenafil Increased plasma concentrations of vardenafil
(see section 4.4. and 4.5).
Sedatives/hypnotics Clorazepate, diazepam, Increased plasma concentrations of clorazepate,
estazolam, flurazepam, diazepam, estazolam, flurazepam, oral
oral midazolam and midazolam and triazolam. Thereby, increasing
triazolam the risk of extreme sedation and respiratory
depression from these agents. (For caution on
parenterally administered midazolam, see
section 4.5).
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): estazolam (HOS-086165) lomitapide (HOS-086160) clorazepate (HOS-086164) diazepam (HOS-085904) avanafil (HOS-086161) sildenafil (HOS-086162) triazolam (HOS-086168) flurazepam (HOS-086166) midazolam (HOS-086167) vardenafil (HOS-086163)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2025-11-11T18:35:00Z · SHA-256 82413695e61cf39577e85c47e382ee60197570a4ae72fe81d6e24e4211cd2d43 · Passage 08cb4669d26fd4170f47a5f99fcf18bde7e922c35f378d07e3e1c1cab8b82945 · Zeichen 6375–8447 im Abschnitt
Gegenanzeigen · Norvir
Norvir 100 mg film-coated tablets · Abschnitt 4.3 · PDF-Seite 37
HOS-086390 · Präparat HOS-083284
Microsomal Lomitapide Increased plasma concentrations of lomitapide
triglyceride transfer (see section 4.5).
protein (MTTP)
inhibitor
PDE5 inhibitor Avanafil Increased plasma concentrations of avanafil
(see section 4.4. and 4.5).
Sildenafil Contraindicated when used for the treatment of
pulmonary arterial hypertension (PAH) only.
Increased plasma concentrations of sildenafil.
Thereby, increasing the potential for sildenafil-
associated adverse events (which include
hypotension and syncope). See section 4.4 and
section 4.5 for co-administration of sildenafil in
patients with erectile dysfunction.
Vardenafil Increased plasma concentrations of vardenafil
(see section 4.4. and 4.5).
Sedatives/hypnotics Clorazepate, diazepam, Increased plasma concentrations of clorazepate,
estazolam, flurazepam, diazepam, estazolam, flurazepam, oral
oral midazolam and midazolam and triazolam. Thereby, increasing
triazolam the risk of extreme sedation and respiratory
depression from these agents. (For caution on
parenterally administered midazolam, see
section 4.5.).
Ritonavir medicinal product level decreased
Herbal Preparation St. John’s Wort Herbal preparations containing St John’s wort
(Hypericum perforatum) due to the risk of
decreased plasma concentrations and reduced
clinical effects of ritonavir (see section 4.5).
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): estazolam (HOS-086165) lomitapide (HOS-086160) clorazepate (HOS-086164) diazepam (HOS-085904) avanafil (HOS-086161) sildenafil (HOS-086162) triazolam (HOS-086168) flurazepam (HOS-086166) midazolam (HOS-086167) vardenafil (HOS-086163)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2025-11-11T18:35:00Z · SHA-256 82413695e61cf39577e85c47e382ee60197570a4ae72fe81d6e24e4211cd2d43 · Passage 235db82cd2afd722d3066659d7d625c3a96a3162e89ca0b2b4a6f83e7ca9d95d · Zeichen 6173–8675 im Abschnitt
Wechselwirkungen · Norvir
Norvir 100 mg powder for oral suspension · Abschnitt 4.5 · PDF-Seite 21
HOS-086314 · Präparat HOS-083284
Sildenafil 100, single dose 500 q12h ↑ 11-fold ↑ 4-fold
Concomitant use of sildenafil for the treatment of erectile dysfunction, with ritonavir
dosed as an antiretroviral agent or as a pharmacokinetic enhancer should be used
with caution and in no instance should sildenafil doses exceed 25 mg in 48 hours
(see also section 4.4). Concomitant use of sildenafil with ritonavir is
contraindicated in pulmonary arterial hypertension patients (see section 4.3).
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): sildenafil (HOS-086162)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2025-11-11T18:35:00Z · SHA-256 82413695e61cf39577e85c47e382ee60197570a4ae72fe81d6e24e4211cd2d43 · Passage 97ad94ec660a325a4a8d1e0aedd2970f98ed27607363c0876cd040e858eedfdd · Zeichen 47771–48467 im Abschnitt
Wechselwirkungen · Norvir
Norvir 100 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 53
HOS-086478 · Präparat HOS-083284
Sildenafil 100, single dose 500 q12h ↑ 11-fold ↑ 4-fold
Concomitant use of sildenafil for the treatment of erectile dysfunction with ritonavir
dosed as an antiretroviral agent or as a pharmacokinetic enhancer should be with caution
and in no instance should sildenafil doses exceed 25 mg in 48 hours (see also section 4.4).
Concomitant use of sildenafil with ritonavir is contraindicated in pulmonary arterial
hypertension patients (see section 4.3).
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): sildenafil (HOS-086162)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2025-11-11T18:35:00Z · SHA-256 82413695e61cf39577e85c47e382ee60197570a4ae72fe81d6e24e4211cd2d43 · Passage 9272ba8d5eb5d161ca665a15e69ca524f147c40af700fe34d2ca79500ab936b4 · Zeichen 49021–49734 im Abschnitt
Wechselwirkungen · Viagra
VIAGRA 25 mg film-coated tablets VIAGRA 50 mg film-coated tablets VIAGRA 100 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 6
HOS-088783 · Präparat HOS-083727
Co-administration of the HIV protease inhibitor ritonavir, which is a highly potent P450 inhibitor, at
steady state (500 mg twice daily) with sildenafil (100 mg single dose) resulted in a 300% (4-fold)
increase in sildenafil Cmax and a 1 000% (11-fold) increase in sildenafil plasma AUC. At 24 hours, the
plasma levels of sildenafil were still approximately 200 ng/mL, compared to approximately 5 ng/mL
when sildenafil was administered alone. This is consistent with ritonavir’s marked effects on a broad
range of P450 substrates. Sildenafil had no effect on ritonavir pharmacokinetics. Based on these
pharmacokinetic results co-administration of sildenafil with ritonavir is not advised (see section 4.4)
and in any event the maximum dose of sildenafil should under no circumstances exceed 25 mg within
48 hours.
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): protease (HOS-085623) ritonavir (HOS-084521)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-10-13T10:49:00Z · SHA-256 6ad3c46b09a0a4a504f9373ab6370260a3b70fd305f7a7b80959175ca84b454e · Passage 83de81e5165ba9afcefd834e7358345821d720a5d1ca31987706377d49b502ed · Zeichen 751–1564 im Abschnitt
Wechselwirkungen · Viagra
VIAGRA 25 mg film-coated tablets VIAGRA 50 mg film-coated tablets VIAGRA 100 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 7–8
HOS-088806 · Präparat HOS-083727
7
Sildenafil (100 mg) did not affect the steady state pharmacokinetics of the HIV protease inhibitors,
saquinavir and ritonavir, both of which are CYP3A4 substrates.
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): protease (HOS-085623) saquinavir (HOS-084522) ritonavir (HOS-084521)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-10-13T10:49:00Z · SHA-256 6ad3c46b09a0a4a504f9373ab6370260a3b70fd305f7a7b80959175ca84b454e · Passage 4343ca69beef1de5517333747110c4d7289d71e30b250877d0d68f760227c444 · Zeichen 7860–8026 im Abschnitt
Wechselwirkungen · Viagra
VIAGRA 50 mg orodispersible tablets · Abschnitt 4.5 · PDF-Seite 19
HOS-088844 · Präparat HOS-083727
Co-administration of the HIV protease inhibitor ritonavir, which is a highly potent P450 inhibitor, at
steady state (500 mg twice daily) with sildenafil (100 mg single dose) resulted in a 300% (4-fold)
increase in sildenafil Cmax and a 1 000% (11-fold) increase in sildenafil plasma AUC. At 24 hours, the
plasma levels of sildenafil were still approximately 200 ng/mL, compared to approximately 5 ng/mL
when sildenafil was administered alone. This is consistent with ritonavir’s marked effects on a broad
range of P450 substrates. Sildenafil had no effect on ritonavir pharmacokinetics. Based on these
pharmacokinetic results co-administration of sildenafil with ritonavir is not advised (see section 4.4)
and in any event the maximum dose of sildenafil should under no circumstances exceed 25 mg within
48 hours.
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): protease (HOS-085623) ritonavir (HOS-084521)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-10-13T10:49:00Z · SHA-256 6ad3c46b09a0a4a504f9373ab6370260a3b70fd305f7a7b80959175ca84b454e · Passage 83de81e5165ba9afcefd834e7358345821d720a5d1ca31987706377d49b502ed · Zeichen 751–1564 im Abschnitt
Wechselwirkungen · Viagra
VIAGRA 50 mg orodispersible tablets · Abschnitt 4.5 · PDF-Seite 21
HOS-088860 · Präparat HOS-083727
Sildenafil (100 mg) did not affect the steady state pharmacokinetics of the HIV protease inhibitors,
saquinavir and ritonavir, both of which are CYP3A4 substrates.
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): protease (HOS-085623) saquinavir (HOS-084522) ritonavir (HOS-084521)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-10-13T10:49:00Z · SHA-256 6ad3c46b09a0a4a504f9373ab6370260a3b70fd305f7a7b80959175ca84b454e · Passage 4a661478a7a706c8bbe2715ad33d069f44fba0c11aff5fd9c99e153a48f4627b · Zeichen 7866–8029 im Abschnitt
Wechselwirkungen · Viagra
VIAGRA 50 mg orodispersible films · Abschnitt 4.5 · PDF-Seite 33
HOS-088894 · Präparat HOS-083727
Co-administration of the HIV protease inhibitor ritonavir, which is a highly potent P450 inhibitor, at
steady state (500 mg twice daily) with sildenafil (100 mg single dose) resulted in a 300% (4-fold)
increase in sildenafil Cmax and a 1 000% (11-fold) increase in sildenafil plasma AUC. At 24 hours, the
plasma levels of sildenafil were still approximately 200 ng/mL, compared to approximately 5 ng/mL
when sildenafil was administered alone. This is consistent with ritonavir’s marked effects on a broad
range of P450 substrates. Sildenafil had no effect on ritonavir pharmacokinetics. Based on these
pharmacokinetic results co-administration of sildenafil with ritonavir is not advised (see section 4.4)
and in any event the maximum dose of sildenafil should under no circumstances exceed 25 mg within
48 hours.
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): protease (HOS-085623) ritonavir (HOS-084521)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-10-13T10:49:00Z · SHA-256 6ad3c46b09a0a4a504f9373ab6370260a3b70fd305f7a7b80959175ca84b454e · Passage 83de81e5165ba9afcefd834e7358345821d720a5d1ca31987706377d49b502ed · Zeichen 751–1564 im Abschnitt
Wechselwirkungen · Viagra
VIAGRA 50 mg orodispersible films · Abschnitt 4.5 · PDF-Seite 35
HOS-088911 · Präparat HOS-083727
Sildenafil (100 mg) did not affect the steady state pharmacokinetics of the HIV protease inhibitors,
saquinavir and ritonavir, both of which are CYP3A4 substrates.
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): protease (HOS-085623) saquinavir (HOS-084522) ritonavir (HOS-084521)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-10-13T10:49:00Z · SHA-256 6ad3c46b09a0a4a504f9373ab6370260a3b70fd305f7a7b80959175ca84b454e · Passage 4a661478a7a706c8bbe2715ad33d069f44fba0c11aff5fd9c99e153a48f4627b · Zeichen 7868–8031 im Abschnitt
Gegenanzeigen · Kaletra
Kaletra (80 mg + 20 mg) / ml oral solution · Abschnitt 4.3 · PDF-Seite 6
HOS-108817 · Präparat HOS-093083
HMG Co-A Reductase Lovastatin, simvastatin Increased plasma concentrations of
Inhibitors lovastatin and simvastatin; thereby,
increasing the risk of myopathy
including rhabdomyolysis (see section
4.5).
Microsomal Lomitapide Increased plasma concentrations of
triglyceride transfer lomitapide (see section 4.5).
protein (MTTP)
inhibitor
Phosphodiesterase Avanafil Increased plasma concentrations of
(PDE5) inhibitors avanafil (see sections 4.4 and 4.5).
Sildenafil Contraindicated when used for the
treatment of pulmonary arterial
hypertension (PAH) only. Increased
plasma concentrations of sildenafil.
Thereby, increasing the potential for
sildenafil-associated adverse events
(which include hypotension and
syncope). See section 4.4 and section
4.5 for co-administration of sildenafil in
patients with erectile dysfunction.
Vardenafil Increased plasma concentrations of
vardenafil (see sections 4.4 and 4.5)
Sedatives/hypnotics Oral midazolam, triazolam Increased plasma concentrations of oral
midazolam and triazolam. Thereby,
increasing the risk of extreme sedation
and respiratory depression from these
agents.
For caution on parenterally administered
midazolam, see section 4.5.
Lopinavir/ritonavir medicinal product level decreased
Herbal products St. John’s wort Herbal preparations containing St John’s
wort (Hypericum perforatum) due to the
risk of decreased plasma concentrations
and reduced clinical effects of lopinavir
and ritonavir (see section 4.5).
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): lovastatin (HOS-086157) lomitapide (HOS-086160) simvastatin (HOS-086158) avanafil (HOS-086161) sildenafil (HOS-086162) triazolam (HOS-086168) midazolam (HOS-086167) vardenafil (HOS-086163)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2025-12-02T16:00:00Z · SHA-256 441d9e5f9e4b42d645e4bd802abc892cef6574b0be5b3f18d2a96678774ae365 · Passage c938be9b188cbabde88400ddb49de67c2831b955f638dc8fa5306b13f1652968 · Zeichen 6187–9289 im Abschnitt
Gegenanzeigen · Kaletra
Kaletra 200 mg/50 mg film-coated tablets · Abschnitt 4.3 · PDF-Seite 43
HOS-108989 · Präparat HOS-093083
HMG Co-A Lovastatin, simvastatin Increased plasma concentrations of
Reductase Inhibitors lovastatin and simvastatin; thereby,
increasing the risk of myopathy
including rhabdomyolysis (see section
4.5).
Microsomal Lomitapide Increased plasma concentrations of
triglyceride transfer lomitapide (see section 4.5).
protein (MTTP)
inhibitor
Phosphodiesterase Avanafil Increased plasma concentrations of
(PDE5) inhibitors avanafil (see sections 4.4 and 4.5)
Sildenafil Contraindicated when used for the
treatment of pulmonary arterial
hypertension (PAH) only. Increased
plasma concentrations of sildenafil.
Thereby, increasing the potential for
sildenafil-associated adverse events
(which include hypotension and
syncope). See section 4.4 and section
4.5 for co-administration of sildenafil
in patients with erectile dysfunction.
Vardenafil Increased plasma concentrations of
vardenafil (see sections 4.4 and 4.5)
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): lovastatin (HOS-086157) lomitapide (HOS-086160) simvastatin (HOS-086158) avanafil (HOS-086161) sildenafil (HOS-086162) vardenafil (HOS-086163)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2025-12-02T16:00:00Z · SHA-256 441d9e5f9e4b42d645e4bd802abc892cef6574b0be5b3f18d2a96678774ae365 · Passage f8543c2c8cda6c1a0fcb441c8b738d361d39474d709f5eb46342c2fd917ec3a5 · Zeichen 6637–8576 im Abschnitt
Gegenanzeigen · Kaletra
Kaletra 100 mg/25 mg film-coated tablets · Abschnitt 4.3 · PDF-Seite 78–79
HOS-109064 · Präparat HOS-093083
78
Phosphodiesterase Avanafil Increased plasma concentrations of
(PDE5) inhibitors avanafil (see sections 4.4 and 4.5)
Sildenafil Contraindicated when used for the
treatment of pulmonary arterial
hypertension (PAH) only. Increased
plasma concentrations of sildenafil.
Thereby, increasing the potential for
sildenafil-associated adverse events
(which include hypotension and syncope).
See section 4.4 and section 4.5 for
co-administration of sildenafil in patients
with erectile dysfunction.
Vardenafil Increased plasma concentrations of
vardenafil (see sections 4.4 and 4.5)
Sedatives/hypnotics Oral midazolam, triazolam Increased plasma concentrations of oral
midazolam and triazolam. Thereby,
increasing the risk of extreme sedation
and respiratory depression from these
agents.
For caution on parenterally administered
midazolam, see section 4.5.
Lopinavir/ritonavir medicinal product level decreased
Herbal products St. John’s wort Herbal preparations containing St John’s
wort (Hypericum perforatum) due to the
risk of decreased plasma concentrations
and reduced clinical effects of lopinavir
and ritonavir (see section 4.5).
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): avanafil (HOS-086161) sildenafil (HOS-086162) triazolam (HOS-086168) midazolam (HOS-086167) vardenafil (HOS-086163)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2025-12-02T16:00:00Z · SHA-256 441d9e5f9e4b42d645e4bd802abc892cef6574b0be5b3f18d2a96678774ae365 · Passage 5fd5fb90c510eab32eaadc8b17bd2236491bc4b4553317338a4ddfd4a5d22f67 · Zeichen 7137–9814 im Abschnitt
Wechselwirkungen · Kaletra
Kaletra (80 mg + 20 mg) / ml oral solution · Abschnitt 4.5 · PDF-Seite 22–23
HOS-108919 · Präparat HOS-093083
22
Tadalafil Tadalafil: For the treatment of pulmonary
AUC: ↑ 2-fold arterial hypertension:
Due to CYP3A4 inhibition by Co-administration of Kaletra with
lopinavir/ritonavir. sildenafil is contraindicated (see
section 4.3). Co-administration of
Sildenafil Sildenafil: Kaletra with tadalafil is not
AUC: ↑ 11-fold recommended.
Due to CYP3A inhibition by
lopinavir/ritonavir. For erectile dysfunction:
Particular caution must be used
when prescribing sildenafil or
tadalafil in patients receiving
Kaletra with increased monitoring
for adverse events including
hypotension, syncope, visual
changes and prolonged erection
(see section 4.4).
When co-administered with
Kaletra, sildenafil doses must not
exceed 25 mg in 48 hours and
tadalafil doses must not exceed
10 mg every 72 hours
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): tadalafil (HOS-086316) sildenafil (HOS-086162)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2025-12-02T16:00:00Z · SHA-256 441d9e5f9e4b42d645e4bd802abc892cef6574b0be5b3f18d2a96678774ae365 · Passage f6989b1f30223c316de026338dd0ec724ca847676e77f9835f3653102804a59c · Zeichen 48534–50585 im Abschnitt
Wechselwirkungen · Kaletra
Kaletra 200 mg/50 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 57–58
HOS-109017 · Präparat HOS-093083
57
Inhaled, injectable or Fluticasone propionate, 50 g Greater effects may be expected
intranasal fluticasone intranasal 4 times daily: when fluticasone propionate is
propionate, budesonide, Plasma concentrations ↑ inhaled. Systemic corticosteroid
triamcinolone Cortisol levels ↓ 86% effects including Cushing's syndrome
and adrenal suppression have been
reported in patients receiving
ritonavir and inhaled or intranasally
administered fluticasone propionate;
this could also occur with other
corticosteroids metabolised via the
P450 3A pathway e.g. budesonide
and triamcinolone. Consequently,
concomitant administration of Kaletra
and these glucocorticoids is not
recommended unless the potential
benefit of treatment outweighs the
risk of systemic corticosteroid effects
(see section 4.4). A dose reduction of
the glucocorticoid should be
considered with close monitoring of
local and systemic effects or a switch
to a glucocorticoid, which is not a
substrate for CYP3A4 (e.g.
beclomethasone). Moreover, in case
of withdrawal of glucocorticoids
progressive dose reduction may have
to be performed over a longer period.
Phosphodiesterase(PDE5) inhibitors
Avanafil Avanafil: The use of avanafil with Kaletra is
(ritonavir 600 mg BID) AUC: ↑ 13-fold contraindicated (see section 4.3).
Due to CYP3A inhibition by
lopinavir/ritonavir.
Tadalafil Tadalafil: For the treatment of pulmonary
AUC: ↑ 2-fold arterial hypertension:
Due to CYP3A4 inhibition by Co-administration of Kaletra with
lopinavir/ritonavir. sildenafil is contraindicated (see
Sildenafil Sildenafil: section 4.3). Co-administration of
AUC: ↑ 11-fold Kaletra with tadalafil is not
Due to CYP3A inhibition by recommended.
lopinavir/ritonavir.
For erectile dysfunction:
Particular caution must be used when
prescribing sildenafil or tadalafil in
patients receiving Kaletra with
increased monitoring for adverse
events including hypotension,
syncope, visual changes and
prolonged erection (see section 4.4).
When co-administered with Kaletra,
sildenafil doses must not exceed
25 mg in 48 hours and tadalafil doses
must not exceed 10 mg every 72
hours.
Vardenafil Vardenafil: The use of vardenafil with Kaletra is
AUC: ↑ 49-fold contraindicated (see section 4.3).
Due to CYP3A inhibition by
lopinavir/ritonavir.
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): triamcinolone (HOS-086333) tadalafil (HOS-086316) fluticasone (HOS-108914) fluticasone propionate (HOS-086331) avanafil (HOS-086161) budesonide (HOS-086332) propionate (HOS-108915) sildenafil (HOS-086162) beclomethasone (HOS-086334) vardenafil (HOS-086163)
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Version 2025-12-02T16:00:00Z · SHA-256 441d9e5f9e4b42d645e4bd802abc892cef6574b0be5b3f18d2a96678774ae365 · Passage 51c234e1918855f44c1bb972e14fc32ef0403c1dd2140c6f4cb763ba5bcc0839 · Zeichen 44014–48937 im Abschnitt
Wechselwirkungen · Kaletra
Kaletra 100 mg/25 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 93
HOS-109094 · Präparat HOS-093083
Tadalafil Tadalafil: For the treatment of pulmonary
AUC: ↑ 2-fold arterial hypertension:
Due to CYP3A4 inhibition by Co-administration of Kaletra with
lopinavir/ritonavir. sildenafil is contraindicated (see
section 4.3). Co-administration of
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): tadalafil (HOS-086316) sildenafil (HOS-086162)
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Wechselwirkungen · Kaletra
Kaletra 100 mg/25 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 93–94
HOS-109095 · Präparat HOS-093083
93
Sildenafil Sildenafil: Kaletra with tadalafil is not
AUC: ↑ 11-fold recommended.
Due to CYP3A inhibition by
lopinavir/ritonavir. For erectile dysfunction:
Particular caution must be used
when prescribing sildenafil or
tadalafil in patients receiving
Kaletra with increased monitoring
for adverse events including
hypotension, syncope, visual
changes and prolonged erection (see
section 4.4).
When co-administered with Kaletra,
sildenafil doses must not exceed
25 mg in 48 hours and tadalafil
doses must not exceed 10 mg every
72 hours.
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): tadalafil (HOS-086316) sildenafil (HOS-086162)
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Version 2025-12-02T16:00:00Z · SHA-256 441d9e5f9e4b42d645e4bd802abc892cef6574b0be5b3f18d2a96678774ae365 · Passage 26cd2872d87a3bbe545ac69c7f6474572fa00be837d211154548b33dab754c6e · Zeichen 48355–49886 im Abschnitt
Wechselwirkungen · Reyataz
REYATAZ 200 mg hard capsules REYATAZ 300 mg hard capsules · Abschnitt 4.5 · PDF-Seite 20–21
HOS-112108 · Präparat HOS-093615
20
Medicinal products by Interaction Recommendations concerning co-
therapeutic area administration
Fluticasone propionate The fluticasone propionate plasma levels Co-administration of
intranasal 50 μg 4 times daily increased significantly, whereas the REYATAZ/ritonavir and these
for 7 days intrinsic cortisol levels decreased by glucocorticoids metabolised by
(ritonavir 100 mg capsules twice approximately 86% (90% confidence CYP3A4 is not recommended
daily) interval 82%-89%). Greater effects may be unless the potential benefit of
expected when fluticasone propionate is treatment outweighs the risk of
And inhaled. Systemic corticosteroid effects systemic corticosteroid effects
including Cushing’s syndrome and adrenal (see section 4.4).
Inhaled/Nasal Corticosteroids suppression have been reported in patients A dose reduction of the
receiving ritonavir and inhaled or glucocorticoid should be considered
intranasally administered fluticasone with close monitoring of local and
propionate; this could also occur with systemic effects or a switch to a
other corticosteroids metabolised via the glucocorticoid, which is not a
P450 3A pathway, e.g., budesonide. The substrate for CYP3A4 (e.g.,
effects of high fluticasone systemic beclomethasone). Moreover, in case
exposure on ritonavir plasma levels are yet of withdrawal of glucocorticoids,
unknown. The mechanism of interaction is progressive dose reduction may
CYP3A4 inhibition. have to be performed over a longer
period.
Concomitant use of REYATAZ (with or
without ritonavir) and other Inhaled/Nasal Concomitant use of Inhaled/Nasal
Corticosteroids is expected to produce the Corticosteroids and REYATAZ
same effects. (with or without ritonavir) may
increase plasma concentrations of
Inhaled/Nasal corticosteroids. Use
with caution. Consider alternatives
to Inhaled/Nasal Corticosteroids,
particularly for long-term use.
ERECTILE DYSFUNCTION
PDE5 Inhibitors
Sildenafil, tadalafil, vardenafil Sildenafil, tadalafil, and vardenafil are
Patients should be warned about
metabolised by CYP3A4. Co- these possible side effects when
administration with REYATAZ may result
using PDE5 inhibitors for erectile
in increased concentrations of the PDE5
dysfunction with REYATAZ (see
inhibitor and an increase in PDE5-
section 4.4).
Also see PULMONARY
associated adverse events, including
ARTERIAL HYPERTENSION in
hypotension, visual changes, and priapism.
this table for further information
The mechanism of this interaction is
CYP3A4 inhibition. regarding co-administration of
REYATAZ with sildenafil.
GONADOTROPIN-RELEASING HORMONE (GnRH) RECEPTOR ANTAGONISTS
Elagolix The mechanism of interaction is Concomitant use of elagolix
anticipated increase in elagolix exposure in 200 mg twice daily with
the presence of CYP3A4 inhibition by REYATAZ (with or without
atazanavir and/or ritonavir. ritonavir) for more than 1 month is
not recommended due to the
potential risk of adverse events
such as bone loss and hepatic
transaminase elevations. Limit
concomitant use of elagolix 150 mg
once daily with REYATAZ (with
or without ritonavir) to 6 months.
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): tadalafil (HOS-086316) fluticasone (HOS-108914) fluticasone propionate (HOS-086331) elagolix (HOS-112109) budesonide (HOS-086332) propionate (HOS-108915) sildenafil (HOS-086162) ritonavir (HOS-084521) beclomethasone (HOS-086334) vardenafil (HOS-086163)
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Version 2026-06-29T13:00:00Z · SHA-256 ff5481974bd7c752b73fa0c147cf3e96fc892edc735359fa71817833db471beb · Passage 635c8268586ef0a6549f4f61ffc231edde0b1b51942c8c61e4e49a8f50290b2a · Zeichen 55637–61614 im Abschnitt
Wechselwirkungen · Reyataz
REYATAZ 200 mg hard capsules REYATAZ 300 mg hard capsules · Abschnitt 4.5 · PDF-Seite 24
HOS-112118 · Präparat HOS-093615
The mechanism of interaction is CYP3A4
and UGT1A1 inhibition.
Concentrations of atazanavir (when given
with ritonavir) were not significantly
affected.
Methadone, stable maintenance No significant effect on methadone No dosage adjustment is necessary
dose concentrations was observed. Given that if methadone is co-administered
(atazanavir 400 mg once daily) low dose ritonavir (100 mg twice daily) with REYATAZ.
has been shown to have no significant
effect on methadone concentrations, no
interaction is expected if methadone is co-
administered with REYATAZ, based on
these data.
PULMONARY ARTERIAL HYPERTENSION
PDE5 Inhibitors
Sildenafil Co-administration with REYATAZ may A safe and effective dose in
result in increased concentrations of the combination with REYATAZ has
PDE5 inhibitor and an increase in PDE5- not been established for sildenafil
inhibitor-associated adverse events. when used to treat pulmonary
arterial hypertension. Sildenafil,
The mechanism of interaction is CYP3A4 when used for the treatment of
inhibition by atazanavir and/or ritonavir. pulmonary arterial hypertension, is
contraindicated (see section 4.3).
SEDATIVES
Benzodiazepines
Midazolam Midazolam and triazolam are extensively Co-administration of REYATAZ
Triazolam metabolised by CYP3A4. Co- with triazolam or orally
administration with REYATAZ may cause administered midazolam is
a large increase in the concentration of contraindicated (see section 4.3),
these benzodiazepines. No drug interaction whereas caution should be used
study has been performed for the co- with co-administration of
administration of REYATAZ with REYATAZ and parenteral
benzodiazepines. Based on data for other midazolam. If REYATAZ is co-
CYP3A4 inhibitors, plasma concentrations administered with parenteral
of midazolam are expected to be midazolam, it should be done in an
significantly higher when midazolam is intensive care unit (ICU) or similar
given orally. Data from concomitant use of setting which ensures close clinical
parenteral midazolam with other protease monitoring and appropriate medical
inhibitors suggest a possible 3-4-fold management in case of respiratory
increase in midazolam plasma levels. depression and/or prolonged
sedation. Dosage adjustment for
midazolam should be considered,
especially if more than a single
dose of midazolam is administered.
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): methadone (HOS-086198) protease (HOS-085623) sildenafil (HOS-086162) ritonavir (HOS-084521) triazolam (HOS-086168) midazolam (HOS-086167)
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Version 2026-06-29T13:00:00Z · SHA-256 ff5481974bd7c752b73fa0c147cf3e96fc892edc735359fa71817833db471beb · Passage be486e27c0486d810d40c1b37da9b7f69c7a35ad1fcade19cc1e1d57a1b71724 · Zeichen 71400–75434 im Abschnitt
Wechselwirkungen · Reyataz
REYATAZ 50 mg oral powder · Abschnitt 4.5 · PDF-Seite 56–57
HOS-112197 · Präparat HOS-093615
56
Medicinal products by Interaction Recommendations
therapeutic area concerning co-administration
Fluticasone propionate The fluticasone propionate plasma levels Co-administration of
intranasal 50 μg 4 times daily increased significantly, whereas the REYATAZ/ritonavir and these
for 7 days intrinsic cortisol levels decreased by glucocorticoids metabolised by
(ritonavir 100 mg capsules approximately 86% (90% confidence CYP3A4 is not recommended
twice daily) interval 82%-89%). Greater effects may be unless the potential benefit of
expected when fluticasone propionate is treatment outweighs the risk of
And inhaled. Systemic corticosteroid effects systemic corticosteroid effects
including Cushing’s syndrome and adrenal (see section 4.4).
Inhaled/Nasal Corticosteroids suppression have been reported in patients A dose reduction of the
receiving ritonavir and inhaled or glucocorticoid should be
intranasally administered fluticasone considered with close
propionate; this could also occur with other monitoring of local and
corticosteroids metabolised via the P450 systemic effects or a switch to
3A pathway, e.g., budesonide. The effects a glucocorticoid, which is not a
of high fluticasone systemic exposure on substrate for CYP3A4 (e.g.,
ritonavir plasma levels are yet unknown. beclomethasone). Moreover, in
The mechanism of interaction is CYP3A4 case of withdrawal of
inhibition. glucocorticoids, progressive
dose reduction may have to be
Concomitant use of REYATAZ (with or performed over a longer
without ritonavir) and other Inhaled/Nasal period.
Corticosteroids is expected to produce the
same effects. Concomitant use of
Inhaled/Nasal Corticosteroids
and REYATAZ (with or
without ritonavir) may increase
plasma concentrations of
Inhaled/Nasal corticosteroids.
Use with caution. Consider
alternatives to Inhaled/Nasal
Corticosteroids, particularly for
long-term use.
ERECTILE DYSFUNCTION
PDE5 Inhibitors
Sildenafil, tadalafil, Sildenafil, tadalafil, and vardenafil are
Patients should be warned
vardenafil metabolised by CYP3A4. Co- about these possible side
administration with REYATAZ may result
effects when using PDE5
in increased concentrations of the PDE5
inhibitors for erectile
inhibitor and an increase in PDE5-
dysfunction with REYATAZ
associated adverse events, including
(see section 4.4).
Also see PULMONARY
hypotension, visual changes, and priapism.
ARTERIAL
The mechanism of this interaction is
CYP3A4 inhibition. HYPERTENSION in this table
for further information
regarding co-administration of
REYATAZ with sildenafil.
GONADOTROPIN-RELEASING HORMONE (GnRH) RECEPTOR ANTAGONISTS
Elagolix The mechanism of interaction is anticipated Concomitant use of elagolix
increase in elagolix exposure in the 200 mg twice daily with
presence of CYP3A4 inhibition by REYATAZ (with or without
atazanavir and/or ritonavir. ritonavir) for more than
1 month is not recommended
due to the potential risk of
adverse events such as bone
loss and hepatic transaminase
elevations. Limit concomitant
use of elagolix 150 mg once
daily with REYATAZ (with or
without ritonavir) to 6 months.
Originalpassage; keine automatisch abgeleitete Schwere, Häufigkeit oder Kausalität. Auch verneinte Befunde und nicht untersuchte Kombinationen bleiben sichtbar.
RxNorm-Namen im Text (wörtliche Treffer, Rolle nicht bewertet): tadalafil (HOS-086316) fluticasone (HOS-108914) fluticasone propionate (HOS-086331) elagolix (HOS-112109) budesonide (HOS-086332) propionate (HOS-108915) sildenafil (HOS-086162) ritonavir (HOS-084521) beclomethasone (HOS-086334) vardenafil (HOS-086163)
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Version 2026-06-29T13:00:00Z · SHA-256 ff5481974bd7c752b73fa0c147cf3e96fc892edc735359fa71817833db471beb · Passage 48a34194fe14fdb331f424e7223a33e7800beb55222a98a47e4c5a5060800d73 · Zeichen 57743–64096 im Abschnitt
This product uses publicly available data from the U.S. National Library of Medicine (NLM), National Institutes of Health, Department of Health and Human Services; NLM is not responsible for the product and does not endorse or recommend this or any other product.