Topiramate
51 interactions 5 explained in plain English
Also sold as:
Eprontia
Qudexy
Topamax
Trokendi
Medically reviewed by
Dr. Brian Staiger, PharmD, BCPS
· Updated Jul 4, 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:
Cetirizine Ophthalmic
Orlistat
Lumateperone
Cariprazine
Apixaban
Hydromorphone Rectal
Major
Topiramate Acetaminophen And Codeine Capital® & Codeine Explained Increased risk of CNS depression and reduced codeine exposure Details Topiramate Amitriptyline Elavil Explained Increased amitriptyline exposure Details Topiramate Buprenorphine Belbuca Explained An increased risk of respiratory depression and CNS depression Details Topiramate Acetazolamide Diamox® Sequels® An increased risk of nephrolithiasis and severity of metabolic acidosis Details Topiramate Apixaban Eliquis Explained Decreased apixaban exposure and possible subtherapeutic anticoagulation which could lead to a thrombotic event Details Topiramate Aripiprazole Injection Abilify An increased risk of CNS depression Details Topiramate Asenapine Transdermal Patch Secuado An increased risk of CNS depression Details Topiramate Atogepant Qulipta Reduced atogepant exposure Details Topiramate Cariprazine Vraylar Explained Effects on the cariprazine exposure has not been evaluated and the net effect is unclear Details Topiramate Amlodipine Amvaz® Reduced amLODIPine exposure Details Topiramate Brinzolamide Ophthalmic Azopt An increased risk of nephrolithiasis and severity of metabolic acidosis Details Topiramate Butorphanol Injection Butorphic Increased risk of respiratory and CNS depression Details Topiramate Butorphanol Nasal Spray Stadol® NS Increased risk of respiratory and CNS depression Details Topiramate Calcifediol Rayaldee Altered serum levels of calcifediol Details Topiramate Cetirizine Injection Aller-Tec Increased risk of CNS depression Details Topiramate Cetirizine Ophthalmic Zerviate Increased risk of CNS depression Details Topiramate Diazepam Nasal Spray Valtoco An increased risk of CNS depression Details Topiramate Diazepam Rectal Diastat An increased risk of CNS depression Details Topiramate Diphenhydramine Injection Banophen An increased risk of CNS depression Details Topiramate Diphenhydramine Topical Afterbite with Antihistamine An increased risk of CNS depression Details Topiramate Dorzolamide Ophthalmic Trusopt® Ocumeter® Plus An increased risk of nephrolithiasis and severity of metabolic acidosis Details Topiramate Esketamine Nasal Spray Spravato Increased risk of sedation Details Topiramate Estradiol Delestrogen Reduced hormonal contraceptive exposure, reduced contraceptive efficacy and an increased risk of breakthrough bleeding/contracepti... Details Topiramate Estradiol Topical Divigel Reduced hormonal contraceptive exposure, reduced contraceptive efficacy and an increased risk of breakthrough bleeding/contracepti... Details Topiramate Estradiol Transdermal Patch Alora® Reduced hormonal contraceptive exposure, reduced contraceptive efficacy and an increased risk of breakthrough bleeding/contracepti... Details Topiramate Fentanyl Transdermal Patch Duragesic® Increased risk of CNS depression and reduced exposure of fentaNYL Details Topiramate Hydromorphone Injection Dilaudid Increased risk of respiratory and CNS depression Details Topiramate Hydromorphone Rectal available generically Increased risk of respiratory and CNS depression Details Topiramate Hydroxychloroquine Plaquenil Impaired antiepileptic activity Details Topiramate Lacosamide Injection Motpoly An increased risk of CNS depression Details Topiramate Levodopa Oral Inhalation Inbrija An increased risk of CNS depression Details Topiramate Levonorgestrel After banger Reduced levonorgestrel exposure and increased risk of breakthrough bleeding and/or contraceptive failure Details Topiramate Levonorgestrel Intrauterine System Kyleena Reduced levonorgestrel exposure and increased risk of breakthrough bleeding and/or contraceptive failure Details Topiramate Lithium Carbonate Lithobid Increased lithium exposure Details Topiramate Lumateperone Caplyta Reduced lumateperone exposure Details Topiramate Medroxyprogesterone Amen® Reduced hormonal contraceptive exposure, reduced contraceptive efficacy and an increased risk of breakthrough bleeding/contracepti... Details Topiramate Medroxyprogesterone Injection Depo-Provera Reduced hormonal contraceptive exposure, reduced contraceptive efficacy and an increased risk of breakthrough bleeding/contracepti... Details Topiramate Metformin Fortamet® An increased risk of lactic acidosis and reduced serum bicarbonate Details Topiramate Methazolamide Neptazane® An increased risk of nephrolithiasis and severity of metabolic acidosis Details Topiramate Metoclopramide Injection Gimoti Increased risk of CNS depression DetailsNo interactions on this page match that filter — try the next page or clear the filter.
Check another drug
Still have questions about this combination?
Every question gets a real answer from a licensed pharmacist — free, and usually within a day.
Ask the pharmacistEducational information only, not medical advice. Always confirm interactions with your pharmacist
or prescriber before making any change to your medications.