Zonisamide and Ertugliflozin Interaction

Drug interaction information between Zonisamide and Ertugliflozin.

Zonisamide and Ertugliflozin have a documented moderate interaction in FDA labeling.

FDA drug labeling documents a moderate-severity interaction between Zonisamide and Ertugliflozin. This page displays the available source-record category and label text. The category is not an individual risk estimate or medication-combination direction.

Drug A

Zonisamide

Anticonvulsant (Sulfonamide)

Drug B

Ertugliflozin

SGLT2 Inhibitor

How They Interact

Both drugs can cause a buildup of acid in the blood. Taking them together increases the risk of a serious condition called lactic acidosis.

FDA Label Information

7 DRUG INTERACTIONS Table 3: Clinically Significant Drug Interactions with SEGLUROMET Carbonic Anhydrase Inhibitors Clinical Impact: The risk of lactic acidosis may increase due to concomitant use of Topiramate or other carbonic anhydrase inhibitors (e.g., zonisamide, acetazolamide or dichlorphenamide) with metformin.

Ertugliflozin Also Interacts With

View all Ertugliflozin interactions →

Frequently Asked Questions

What SPL severity band is on file for Zonisamide + Ertugliflozin?

Compiled FDA labeling labels this pair moderate. That is a source-record field, not an individual medication-combination decision.

Which drug in this pair has the larger labeled-interaction portfolio?

Zonisamide has 13 labeled pairs on file vs Ertugliflozin's 8. In the moderate band specifically: Zonisamide has 3 (also Alogliptin, Topiramate); Ertugliflozin has 6 (also Metformin, Topiramate, Dolutegravir, Ranolazine).

What mechanism field is on file for Zonisamide and Ertugliflozin?

Both drugs can cause a buildup of acid in the blood. Taking them together increases the risk of a serious condition called lactic acidosis.

Zonisamide's labeled portfolio outnumbers Ertugliflozin

SPL source-record counts only. This page's band is moderate · classes on file: Zonisamide (Anticonvulsant (Sulfonamide)); Ertugliflozin (SGLT2 Inhibitor).

Zonisamide

0 major · 3 moderate · 10 minor · 13 total

Ertugliflozin

0 major · 6 moderate · 2 minor · 8 total

Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. This registry does not provide individual medication-combination directions.