Does Topiramate Interact with Dapagliflozin And Metformin Hydrochloride?
Topiramate and Dapagliflozin And Metformin Hydrochloride have a major drug interaction according to U.S. FDA drug labeling data. Decreases serum bicarbonate and induces metabolic acidosis; concomitant use may increase risk for lactic acidosis. The mechanism involves carbonic anhydrase inhibition causing non-anion gap, hyperchloremic metabolic acidosis. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.
- Severity
- Major
- Topiramate Class
- Cytochrome P450 3A4 Inducers
- Dapagliflozin And Metformin Hydrochloride Class
- Sodium-Glucose Cotransporter 2 Inhibitor
- Management
- Close medical supervision required
- Data Source
- U.S. FDA via OpenFDA
How This Interaction Works
The interaction between Topiramate and Dapagliflozin And Metformin Hydrochloride occurs because carbonic anhydrase inhibition causing non-anion gap, hyperchloremic metabolic acidosis. Clinically, this means decreases serum bicarbonate and induces metabolic acidosis; concomitant use may increase risk for lactic acidosis. This is classified as a major interaction, meaning it could cause serious harm if not properly managed. Your healthcare provider may need to adjust dosages, substitute one medication, or increase monitoring frequency.
What To Tell Your Doctor or Pharmacist
If you are taking Topiramate and your doctor is considering prescribing Dapagliflozin And Metformin Hydrochloride (or vice versa), make sure to:
- Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
- Ask whether the benefits of combining these medications outweigh the risks for your specific situation
- Ask what symptoms to watch for that would indicate the interaction is causing problems
- Ask how frequently you should be monitored while these are co-prescribed
- Ask whether any dosage adjustments are needed
- Never stop or change either medication without first consulting your healthcare provider