Fezolinetant

19 interactions
Dr. Brian Staiger, PharmD, BCPS
Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated Jul 10, 2026 · Editorial policy · Data sources

Sources: FDA prescribing information (Structured Product Labeling), the published literature cited in each entry, DDInter 2.0 (a major open-access drug-interaction database), and legacy DrugBank interaction data distributed by the NIH's RxNav service (decommissioned in 2024) — analyzed and reviewed by our pharmacist team. How we build this library →

Most serious with: Acyclovir Acyclovir Injection Acyclovir Ophthalmic Obeticholic Acid Allopurinol Peginterferon Alfa-2A Injection
19 Contraindicated
All (19) Contraindicated (19)

Contraindicated

Fezolinetant Acyclovir Avaclyr Increased fezolinetant exposure Details Fezolinetant Acyclovir Injection Avaclyr Increased fezolinetant exposure Details Fezolinetant Acyclovir Ophthalmic Avaclyr Increased fezolinetant exposure Details Fezolinetant Acyclovir Topical Zovirax Increased fezolinetant exposure Details Fezolinetant Allopurinol Aloprim Increased fezolinetant exposure Details Fezolinetant Allopurinol Injection Aloprim Increased fezolinetant exposure Details Fezolinetant Capmatinib Tabrecta Increased fezolinetant exposure Details Fezolinetant Enasidenib Idhifa Increased fezolinetant exposure Details Fezolinetant Estradiol Delestrogen Increased fezolinetant exposure Details Fezolinetant Estradiol Topical Divigel Increased fezolinetant exposure Details Fezolinetant Estradiol Transdermal Patch Alora® Increased fezolinetant exposure Details Fezolinetant Interferon Alfa-2B Injection Intron A® Increased fezolinetant exposure Details Fezolinetant Levonorgestrel After banger Increased fezolinetant exposure Details Fezolinetant Levonorgestrel Intrauterine System Kyleena Increased fezolinetant exposure Details Fezolinetant Medroxyprogesterone Amen® Increased fezolinetant exposure Details Fezolinetant Medroxyprogesterone Injection Depo-Provera Increased fezolinetant exposure Details Fezolinetant Mexiletine Mexitil® Increased fezolinetant exposure Details Fezolinetant Obeticholic Acid Ocaliva Increased fezolinetant exposure Details Fezolinetant Peginterferon Alfa-2A Injection Pegasys Increased fezolinetant exposure Details

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Educational information only, not medical advice. Always confirm interactions with your pharmacist or prescriber before making any change to your medications.