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.
Wechselwirkungen · Arava
Arava 10 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 9
HOS-089665 · Präparat HOS-083907
Effect on caffeine (CYP1A2 substrate)
Repeated doses of A771726 decreased mean Cmax and AUC of caffeine (CYP1A2 substrate) by 18%
and 55%, respectively, suggesting that A771726 may be a weak inducer of CYP1A2 in vivo.
Therefore, medicinal products metabolised by CYP1A2 (such as duloxetine, alosetron, theophylline
and tizanidine) should be used with caution during treatment, as it could lead to the reduction of the
efficacy of these products.
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): duloxetine (HOS-089666) tizanidine (HOS-089668) caffeine (HOS-085902) theophylline (HOS-085910) lead (HOS-085592) alosetron (HOS-089667)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-09-07T09:36:00Z · SHA-256 cd6bb826d7f71e10dd6cea956a4c1d40ef339b9461b69d87c77735d5508df2d9 · Passage 5ffcf02db0eb36a6367ede81f031809225256e780d338302265ed858aa418af7 · Zeichen 4596–5041 im Abschnitt
Wechselwirkungen · Arava
Arava 20 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 26
HOS-089734 · Präparat HOS-083907
Effect on caffeine (CYP1A2 substrate)
Repeated doses of A771726 decreased mean Cmax and AUC of caffeine (CYP1A2 substrate) by 18%
and 55%, respectively, suggesting that A771726 may be a weak inducer of CYP1A2 in vivo.
Therefore, medicinal products metabolised by CYP1A2 (such as duloxetine, alosetron, theophylline
and tizanidine) should be used with caution during treatment, as it could lead to the reduction of the
efficacy of these products.
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): duloxetine (HOS-089666) tizanidine (HOS-089668) caffeine (HOS-085902) theophylline (HOS-085910) lead (HOS-085592) alosetron (HOS-089667)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-09-07T09:36:00Z · SHA-256 cd6bb826d7f71e10dd6cea956a4c1d40ef339b9461b69d87c77735d5508df2d9 · Passage 5ffcf02db0eb36a6367ede81f031809225256e780d338302265ed858aa418af7 · Zeichen 4598–5043 im Abschnitt
Wechselwirkungen · Arava
Arava 100 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 43
HOS-089794 · Präparat HOS-083907
Effect on caffeine (CYP1A2 substrate)
Repeated doses of A771726 decreased mean Cmax and AUC of caffeine (CYP1A2 substrate) by 18%
and 55%, respectively, suggesting that A771726 may be a weak inducer of CYP1A2 in vivo.
Therefore, medicinal products metabolised by CYP1A2 (such as duloxetine, alosetron, theophylline
and tizanidine) should be used with caution during treatment, as it could lead to the reduction of the
efficacy of these products.
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): duloxetine (HOS-089666) tizanidine (HOS-089668) caffeine (HOS-085902) theophylline (HOS-085910) lead (HOS-085592) alosetron (HOS-089667)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-09-07T09:36:00Z · SHA-256 cd6bb826d7f71e10dd6cea956a4c1d40ef339b9461b69d87c77735d5508df2d9 · Passage 5ffcf02db0eb36a6367ede81f031809225256e780d338302265ed858aa418af7 · Zeichen 4594–5039 im Abschnitt
Wechselwirkungen · Exjade
EXJADE 90 mg film-coated tablets EXJADE 180 mg film-coated tablets EXJADE 360 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 12
HOS-115544 · Präparat HOS-094307
Interaction with theophylline and other agents metabolised by CYP1A2
In a healthy volunteer study, the concomitant administration of deferasirox as a CYP1A2 inhibitor
(repeated dose of 30 mg/kg/day, dispersible tablet formulation) and the CYP1A2 substrate
theophylline (single dose of 120 mg) resulted in an increase of theophylline AUC by 84% (90% CI:
73% to 95%). The single dose Cmax was not affected, but an increase of theophylline Cmax is expected
to occur with chronic dosing. Therefore, the concomitant use of deferasirox with theophylline is not
recommended. If deferasirox and theophylline are used concomitantly, monitoring of theophylline
concentration and theophylline dose reduction should be considered. An interaction between
deferasirox and other CYP1A2 substrates cannot be excluded. For substances that are predominantly
metabolised by CYP1A2 and that have a narrow therapeutic index (e.g. clozapine, tizanidine), the
same recommendations apply as for theophylline.
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): tizanidine (HOS-089668) theophylline (HOS-085910) clozapine (HOS-086149)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-10-20T15:00:00Z · SHA-256 222a01b9b6233f96f99f56a88eeabc2cd5b2faff9038f592b1cc77a87d26915c · Passage 324a30d64741eba975810c0dac305bef3446ac4d5128757173e592b662d8f36f · Zeichen 2559–3543 im Abschnitt
Wechselwirkungen · Exjade
EXJADE 90 mg granules in sachet EXJADE 180 mg granules in sachet EXJADE 360 mg granules in sachet · Abschnitt 4.5 · PDF-Seite 32
HOS-115575 · Präparat HOS-094307
Interaction with theophylline and other agents metabolised by CYP1A2
In a healthy volunteer study, the concomitant administration of deferasirox as a CYP1A2 inhibitor
(repeated dose of 30 mg/kg/day, dispersible tablet formulation) and the CYP1A2 substrate
theophylline (single dose of 120 mg) resulted in an increase of theophylline AUC by 84% (90% CI:
73% to 95%). The single dose Cmax was not affected, but an increase of theophylline Cmax is expected
to occur with chronic dosing. Therefore, the concomitant use of deferasirox with theophylline is not
recommended. If deferasirox and theophylline are used concomitantly, monitoring of theophylline
concentration and theophylline dose reduction should be considered. An interaction between
deferasirox and other CYP1A2 substrates cannot be excluded. For substances that are predominantly
metabolised by CYP1A2 and that have a narrow therapeutic index (e.g. clozapine, tizanidine), the
same recommendations apply as for theophylline.
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): tizanidine (HOS-089668) theophylline (HOS-085910) clozapine (HOS-086149)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-10-20T15:00:00Z · SHA-256 222a01b9b6233f96f99f56a88eeabc2cd5b2faff9038f592b1cc77a87d26915c · Passage 324a30d64741eba975810c0dac305bef3446ac4d5128757173e592b662d8f36f · Zeichen 2702–3686 im Abschnitt
Wechselwirkungen · Leflunomide Zentiva (previously Leflunomide Winthrop)
Leflunomide Zentiva 10 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 9
HOS-122360 · Präparat HOS-095511
Effect on caffeine (CYP1A2 substrate)
Repeated doses of A771726 decreased mean Cmax and AUC of caffeine (CYP1A2 substrate) by 18%
and 55%, respectively, suggesting that A771726 may be a weak inducer of CYP1A2 in vivo.
Therefore, medicinal products metabolised by CYP1A2 (such as duloxetine, alosetron, theophylline
and tizanidine) should be used with caution during treatment, as it could lead to the reduction of the
efficacy of these products.
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): duloxetine (HOS-089666) tizanidine (HOS-089668) caffeine (HOS-085902) theophylline (HOS-085910) lead (HOS-085592) alosetron (HOS-089667)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-09-22T17:27:00Z · SHA-256 bed6a472e84572491a61af1acb52b0f05e60157fe2f2f53c93e4e488c7c80e1b · Passage 5ffcf02db0eb36a6367ede81f031809225256e780d338302265ed858aa418af7 · Zeichen 4612–5057 im Abschnitt
Wechselwirkungen · Leflunomide Zentiva (previously Leflunomide Winthrop)
Leflunomide Zentiva 20 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 26
HOS-122433 · Präparat HOS-095511
Effect on caffeine (CYP1A2 substrate)
Repeated doses of A771726 decreased mean Cmax and AUC of caffeine (CYP1A2 substrate) by 18%
and 55%, respectively, suggesting that A771726 may be a weak inducer of CYP1A2 in vivo.
Therefore, medicinal products metabolised by CYP1A2 (such as duloxetine, alosetron, theophylline
and tizanidine) should be used with caution during treatment, as it could lead to the reduction of the
efficacy of these products.
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): duloxetine (HOS-089666) tizanidine (HOS-089668) caffeine (HOS-085902) theophylline (HOS-085910) lead (HOS-085592) alosetron (HOS-089667)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-09-22T17:27:00Z · SHA-256 bed6a472e84572491a61af1acb52b0f05e60157fe2f2f53c93e4e488c7c80e1b · Passage 5ffcf02db0eb36a6367ede81f031809225256e780d338302265ed858aa418af7 · Zeichen 4612–5057 im Abschnitt
Wechselwirkungen · Leflunomide Zentiva (previously Leflunomide Winthrop)
Leflunomide Zentiva 100 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 43
HOS-122493 · Präparat HOS-095511
Effect on caffeine (CYP1A2 substrate)
Repeated doses of A771726 decreased mean Cmax and AUC of caffeine (CYP1A2 substrate) by 18%
and 55%, respectively, suggesting that A771726 may be a weak inducer of CYP1A2 in vivo.
Therefore, medicinal products metabolised by CYP1A2 (such as duloxetine, alosetron, theophylline
and tizanidine) should be used with caution during treatment, as it could lead to the reduction of the
efficacy of these products.
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): duloxetine (HOS-089666) tizanidine (HOS-089668) caffeine (HOS-085902) theophylline (HOS-085910) lead (HOS-085592) alosetron (HOS-089667)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-09-22T17:27:00Z · SHA-256 bed6a472e84572491a61af1acb52b0f05e60157fe2f2f53c93e4e488c7c80e1b · Passage 5ffcf02db0eb36a6367ede81f031809225256e780d338302265ed858aa418af7 · Zeichen 4610–5055 im Abschnitt
Wechselwirkungen · Leflunomide medac
Leflunomide medac 10 mg film-coated tablets Leflunomide medac 15 mg film-coated tablets Leflunomide medac 20 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 9
HOS-213053 · Präparat HOS-155028
Effect on caffeine (CYP1A2 substrate)
Repeated doses of A771726 decreased mean Cmax and AUC of caffeine (CYP1A2 substrate) by 18 %
and 55 %, respectively, suggesting that A771726 may be a weak inducer of CYP1A2 in vivo.
Therefore, medicinal products metabolised by CYP1A2 (such as duloxetine, alosetron, theophylline
and tizanidine) should be used with caution during treatment, as it could lead to the reduction of the
efficacy of these products.
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): duloxetine (HOS-089666) tizanidine (HOS-089668) caffeine (HOS-085902) theophylline (HOS-085910) lead (HOS-085592) alosetron (HOS-089667)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-08-04T13:43:00Z · SHA-256 223d274d21039c4ccbd4617b929b92d6c05220acbdfe9a91a66492f4c4b82c33 · Passage 26a669c5e145dd33e7241cf993883736ee9d7a676e7cd2033872759eb1dc952d · Zeichen 4548–4995 im Abschnitt
Wechselwirkungen · Leflunomide ratiopharm
Leflunomide ratiopharm 10 mg film-coated tablets Leflunomide ratiopharm 20 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 9
HOS-213334 · Präparat HOS-155090
Effect on caffeine (CYP1A2 substrate)
Repeated doses of A771726 decreased mean Cmax and AUC of caffeine (CYP1A2 substrate) by 18%
and 55%, respectively, suggesting that A771726 may be a weak inducer of CYP1A2 in vivo.
Therefore, medicinal products metabolised by CYP1A2 (such as duloxetine, alosetron, theophylline
and tizanidine) should be used with caution during treatment, as it could lead to the reduction of the
efficacy of these products.
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): duloxetine (HOS-089666) tizanidine (HOS-089668) caffeine (HOS-085902) theophylline (HOS-085910) lead (HOS-085592) alosetron (HOS-089667)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-07-30T13:11:00Z · SHA-256 50316a891b82d00ee9a94d110a4117387e85a2bc5abc6b68dd9316418b3d816b · Passage 5ffcf02db0eb36a6367ede81f031809225256e780d338302265ed858aa418af7 · Zeichen 4617–5062 im Abschnitt
Wechselwirkungen · Zelboraf
Zelboraf 240 mg film-coated tablets. · Abschnitt 4.5 · PDF-Seite 8
HOS-215542 · Präparat HOS-155464
Concomitant use of vemurafenib with agents metabolized by CYP1A2 with narrow therapeutic
windows (e.g. agomelatine, alosetron, duloxetine, melatonin, ramelteon, tacrine, tizanidine,
theophylline) is not recommended. If co-administration cannot be avoided, exercise caution, as
vemurafenib may increase plasma exposure of CYP1A2 substrate drugs. Dose reduction of the
concomitant CYP1A2 substrate drug may be considered, if clinically indicated.
Co-administration of vemurafenib increased the plasma exposure (AUC) of caffeine (CYP1A2
substrate) 2.6-fold. In another clinical trial, vemurafenib increased Cmax and AUC of a single 2 mg
dose of tizanidine (CYP1A2 substrate) approximately 2.2-fold
and 4.7-fold, respectively.
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): ramelteon (HOS-215544) duloxetine (HOS-089666) tizanidine (HOS-089668) caffeine (HOS-085902) theophylline (HOS-085910) tacrine (HOS-215545) alosetron (HOS-089667) melatonin (HOS-115812)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2025-06-19T10:15:00Z · SHA-256 2d456fa760308f0a3cd38ceefcce188400597f529dcb630f5163ed6664af53db · Passage 104336a35985ee8240d457969e8e908d564dd5309cc8d70608eb01b3fb5fe95c · Zeichen 220–942 im Abschnitt
Wechselwirkungen · Aubagio
AUBAGIO 7 mg film-coated tablets AUBAGIO 14 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 8
HOS-126669 · Präparat HOS-096301
Effect of teriflunomide on CYP1A2 substrate: caffeine
Repeated doses of teriflunomide decreased mean Cmax and AUC of caffeine (CYP1A2 substrate) by
18% and 55%, respectively, suggesting that teriflunomide may be a weak inducer of CYP1A2 in vivo.
Therefore, medicinal products metabolised by CYP1A2 (such as duloxetine, alosetron, theophylline
and tizanidine) should be used with caution during treatment with teriflunomide, as it could lead to the
reduction of the efficacy of these medicinal products.
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): duloxetine (HOS-089666) tizanidine (HOS-089668) caffeine (HOS-085902) theophylline (HOS-085910) lead (HOS-085592) alosetron (HOS-089667)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2025-12-09T14:35:00Z · SHA-256 590c2a61b8e2e029ec7654e3780b1cba8a07adbbaa44e9523484198edf4cb160 · Passage c33b7256b005c4351acdf2d786aa5fcd979671f8be8a010c586a17c90e0f2442 · Zeichen 2286–2788 im Abschnitt
Wechselwirkungen · Rydapt
Rydapt 25 mg soft capsules · Abschnitt 4.5 · PDF-Seite 7
HOS-135078 · Präparat HOS-097652
Based on in-vitro data, midostaurin and its active metabolites, CGP52421 and CGP62221, are
inhibitors of CYP1A2 and CYP2E1 and inducers of CYP1A2. Therefore, medicinal products with a
narrow therapeutic range that are substrates of CYP1A2 (e.g. tizanidine) and CYP2E1 (e.g.
chlorzoxazone) should be used with caution when administered concomitantly with midostaurin, and
may need dose adjustment to maintain optimal exposure.
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): tizanidine (HOS-089668) chlorzoxazone (HOS-112397)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-01-14T02:00:00Z · SHA-256 8f1ec9efb6021159ac982022053e37b35f5bff1afb750b66862153d8db724917 · Passage c86f2166b96f7419ab08ce251c7d52ee05bc97af40dce1c13d7c6793cf3bc940 · Zeichen 2573–2998 im Abschnitt
Wechselwirkungen · Rubraca
Rubraca 200 mg film-coated tablets Rubraca 250 mg film-coated tablets Rubraca 300 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 6
HOS-137461 · Präparat HOS-098043
CYP1A2 substrates
Rucaparib showed no effect on Cmax of caffeine while moderately increasing AUCinf of caffeine by
2.55 fold (90% CI: 2.12, 3.08). When co-administering medicinal products metabolized by CYP1A2,
particularly medicines which have a narrow therapeutic index (e.g., tizanidine, theophylline), dose
adjustments may be considered based on appropriate clinical monitoring.
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): tizanidine (HOS-089668) caffeine (HOS-085902) theophylline (HOS-085910)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2025-11-27T16:36:00Z · SHA-256 230a9c1df880b14750043bea049c21874a6e3d04bb3b18b3f15c92b0c4aa3f16 · Passage cb281be735e2c6bbdebd9663718b41de20106d308607e6f0cd20d4753e54c874 · Zeichen 1403–1785 im Abschnitt
Wechselwirkungen · Epidyolex
Epidyolex 100 mg/ml oral solution · Abschnitt 4.5 · PDF-Seite 8
HOS-140619 · Präparat HOS-098554
Sensitive substrates of CYP1A2, CYP2B6, CYP2C8, CYP2C9, CYP2C19, UGT1A9, and UGT2B7
Sensitive CYP1A2 substrates
In vivo data from steady-state dosing with cannabidiol (750 mg twice daily) when co-administered
with a single dose of caffeine (200 mg), a sensitive CYP1A2 substrate, showed increased caffeine
exposure by 15% for Cmax and 95% for AUC compared to when caffeine was administered alone.
These data indicate that cannabidiol is a weak inhibitor of CYP1A2. Similar modest increases in
exposure may be observed with other sensitive CYP1A2 substrates (e.g., theophylline or tizanidine).
The clinical importance of these findings has not been studied. The patient should be closely
monitored for adverse drug reactions.
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): tizanidine (HOS-089668) caffeine (HOS-085902) theophylline (HOS-085910)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-08-20T11:14:00Z · SHA-256 ccb7fce36b37a5c512676c2475ea9ab250d2fd66d8e1f76a5048e693726825e9 · Passage d2876c92e6439dd10450c189bb4651ea779c5c869115eba02721133b071fce67 · Zeichen 4760–5484 im Abschnitt
Wechselwirkungen · Isturisa
Isturisa 1 mg film-coated tablets Isturisa 5 mg film-coated tablets Isturisa 10 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 5–6
HOS-142179 · Präparat HOS-098768
5
Clinical studies
In a healthy volunteer study (n=20) using a single dose of 50 mg osilodrostat and a probe drug
cocktail, osilodrostat was found to be a mild inhibitor of CYP2D6 and CYP3A4/5, a mild to moderate
inhibitor of CYP2C19, and a moderate inhibitor of CYP1A2.
- CYP2D6 – area under the curve (AUC) geometric mean ratio of 1.5 for dextromethorphan
(CYP2D6 substrate) when dosed with osilodrostat compared to when dosed alone.
- CYP3A4 – AUC geometric mean ratio of 1.5 for midazolam (CYP3A4 substrate) when dosed
with osilodrostat compared to when dosed alone.
- CYP2C19 –AUC geometric mean ratio of 1.9 for omeprazole (CYP2C19 substrate) when dosed
with osilodrostat compared to when dosed alone. However, an in vitro signal of time-dependent
inhibition has been observed, thus the consequence following repeated dosing is unclear.
Osilodrostat should be used with caution when co-administered with sensitive CYP2C19
substrates with a narrow therapeutic index.
- CYP1A2 –AUC geometric mean ratio of 2.5 for caffeine (CYP1A2 substrate) when dosed with
osilodrostat compared to when dosed alone. However, an in vitro signal of CYP1A2 induction
has been observed, thus the consequence following repeated dosing is unclear. Osilodrostat
should be used with caution when co-administered with sensitive CYP1A2 substrates with a
narrow therapeutic index such as theophylline and tizanidine.
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): tizanidine (HOS-089668) caffeine (HOS-085902) theophylline (HOS-085910) dextromethorphan (HOS-109265) midazolam (HOS-086167) omeprazole (HOS-085912)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2024-12-12T15:32:00Z · SHA-256 13107ffe0035bb183c6ee6076a8db3da498ecb30795369b80b898d43d73d46cc · Passage 289275b48b7b952d790a642a65feeae3df4d51a35620d4b2d3d7b58b62bf72a0 · Zeichen 1523–3008 im Abschnitt
Wechselwirkungen · Deferasirox Accord
Deferasirox Accord 90 mg film-coated tablets Deferasirox Accord 180 mg film-coated tablets Deferasirox Accord 360 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 12
HOS-144739 · Präparat HOS-099252
In a healthy volunteer study, the concomitant administration of deferasirox as a CYP1A2 inhibitor
(repeated dose of 30 mg/kg/day, dispersible tablet formulation) and the CYP1A2 substrate
theophylline (single dose of 120 mg) resulted in an increase of theophylline AUC by 84% (90% CI:
73% to 95%). The single dose Cmax was not affected, but an increase of theophylline Cmax is
expected to occur with chronic dosing. Therefore, the concomitant use of deferasirox with
theophylline is not recommended. If deferasirox and theophylline are used concomitantly,
monitoring of theophylline concentration and theophylline dose reduction should be considered. An
interaction between deferasirox and other CYP1A2 substrates cannot be excluded. For substances
that are predominantly metabolised by CYP1A2 and that have a narrow therapeutic index (e.g.
clozapine, tizanidine), the same recommendations apply as for theophylline.
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): tizanidine (HOS-089668) theophylline (HOS-085910) clozapine (HOS-086149)
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Version 2026-10-20T15:34:00Z · SHA-256 13369c7e621721266245480c965b2ec7989c3b5e56c6bb8326a2719480abaec4 · Passage 7b333a775741aa992ea5f10415c39ff2b711ee12ede6c2f18ca53387e578d618 · Zeichen 2838–3753 im Abschnitt
Wechselwirkungen · Litfulo
Litfulo 50 mg hard capsules · Abschnitt 4.5 · PDF-Seite 7
HOS-150862 · Präparat HOS-100402
Multiple doses of 200 mg once daily ritlecitinib increased the AUCinf and Cmax of caffeine, a CYP1A2
substrate, by approximately 2.7-fold and 1.1-fold, respectively. Ritlecitinib is a moderate inhibitor of
CYP1A2; caution should be exercised with concomitant use of ritlecitinib with other CYP1A2
substrates (e.g., tizanidine) where moderate concentration changes may lead to serious adverse
reactions. Dose adjustment recommendations for the CYP1A2 substrate (e.g., theophylline,
pirfenidone) should be considered.
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): pirfenidone (HOS-124579) ritlecitinib (HOS-150854) tizanidine (HOS-089668) caffeine (HOS-085902) theophylline (HOS-085910) lead (HOS-085592)
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Version 2026-09-21T13:17:00Z · SHA-256 1212c4fe19a193c9c3cd1b2f6d9dee908eaf6d93c0dca92c058fd153686a1e5e · Passage b2dfd9f054a469edea61e44d492493a99cae92614640df452918a61b3a9266b0 · Zeichen 1445–1960 im Abschnitt
Wechselwirkungen · Lazcluze
Lazcluze 80 mg film-coated tablets Lazcluze 240 mg film-coated tablets · Abschnitt 4.5 · PDF-Seite 8
HOS-151407 · Präparat HOS-100535
Induction of CYP1A2 cannot be excluded. Therefore, caution is advised when co-administering with
substrates of CYP1A2 (e.g., tizanidine).
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): tizanidine (HOS-089668)
Vollständigen Kontext in der EMA-Fachinformation lesen →Quellennachweis
Version 2026-10-12T16:08:31Z · SHA-256 1473f5edd2523c74fb17bb2ceb92aa90b2ceba65343d261aad9177ebf723dcbf · Passage bd187e7f7209ced33f33f6562e5d611821e40d14a696c940a6a86ee8a9d56d95 · Zeichen 2204–2341 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.