Label Changes for:
Tasigna (nilotinib) capsules
Changes have been made to the PRECAUTIONS sections of the safety label.
Detailed View: Safety Labeling Changes Approved By FDA Center for Drug Evaluation and Research (CDER)
Drugs that Affect Gastric pH
- Nilotinib has pH-dependent solubility, with decreased solubility at higher pH. Drugs such as proton pump inhibitors that inhibit gastric acid secretion to elevate the gastric pH may decrease the solubility of nilotinib and reduce its bioavailability. In healthy subjects, co-administration of a single 400 mg dose of Tasigna with multiple doses of esomeprazole (a proton pump inhibitor) at 40 mg daily decreased the nilotinib AUC by 34%. Increasing the dose of Tasigna when co-administered with such agents is not likely to compensate for the loss of exposure. Since proton pump inhibitors affect pH of the upper GI tract for an extended period, separation of doses may not eliminate the interaction. The concomitant use of proton pump inhibitors with Tasigna is not recommended.
- In healthy subjects, no significant change in nilotinib pharmacokinetics was observed when a single 400 mg dose of Tasigna was administered ten hours after and two hours before famotidine (an H2 blocker). Therefore, when the concurrent use of a H2 blocker is necessary, it may be administered approximately ten hours before and approximately two hours after the dose of Tasigna.
- Administration of an antacid (aluminum hydroxide/magnesium hydroxide/simethicone) to healthy subjects, two hours before or two hours after a single 400 mg dose of Tasigna did not alter nilotinib pharmacokinetics. Therefore, if necessary, an antacid may be administered approximately two hours before or approximately two hours after the dose of Tasigna.
What should I tell my doctor before starting Tasigna?
- Tell your doctor about all the medicines you take a medicine to block the amount of acid produced in the stomach (H2 blocker): Take these medicines about 10 hours before you take Tasigna, or about 2 hours after you take Tasigna.