Erlocent Erlotinib Omeprazole
ModerateTaking erlotinib together with omeprazole lowers the amount of erlotinib in the body, with its AUC falling by 46%. Ranitidine 300 mg did something similar, cutting the erlotinib AUC by 33%. Both medicines change the acidity of the stomach, which is why this group is flagged in the leaflet.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.