The dose of Repaglinide may need to be adjusted, if taken with other medications. The possible interactions of Repaglinide with other drugs are:
Inhibitors of the cytochrome P450 enzyme system (azole antifungals and macrolides) may lead to lower Repaglinide clearance and longer half life.
Inducers of the cytochrome P450 enzyme system (Rifampin, Phenobarbital, Carbamazepine, Troglitazone, etc.) may accelerate Repaglinide metabolism and shorten its effect.
Cimetidine has no significant effect on Repaglinide absorption or clearance.
Repaglinide has no significant effect on Digoxin, Theophyllin, or Warfarin.
Highly protein bound drugs (e.g., NSAIDs) may increase the plasma level of unbound Repaglinide and potentiate its glucose lowering effect. Thus, co-administration of these drugs with Repaglinide may increase the risk of hypoglycaemia.
The risk of hypoglycaemia may also be increased when hypoglycaemic agents are co-administered with certain drugs such as salicylates, sulphonamides, Chloramphenicol, coumarins, Probenecid, monoamine oxidase (MAO) inhibitors, and adrenergic blockers.