Table 2 Clinically Relevant Interactions with linagliptin and metformin hydrochloride Carbonic Anhydrase Inhibitors Clinical Impact Topiramate or other carbonic anhydrase inhibitors (e.g., zonisamide, acetazolamide or dichlorphenamide) frequently cause a decrease in serum bicarbonate and induce non-anion gap, hyperchloremic metabolic acidosis.
Source: FDA drug label - linagliptin and metformin hydrochloride