May 23 2022

Active ingredient: omeprazole

The presence of food decreases the rate (Cmax) and extent (AUC 0->infinity) absorption of omeprazole in more than 40% compared to fasting values[1][2]. This same phenomenon occurs with similar medicines such as lansoprazole and esomeprazole[3].

For this reason, it is advisable to take it fasting.


1: Liu Z, Ding L, Zhong S, Cao X, Jiang L, Duan H. Pharmacokinetics of a new immediate-release compound omeprazole capsule and its comparison with the enteric-coated formulation under fasting and fed conditions. Drug Res (Stuttg). 2013 Jul;63(7):370-5.
2: Hatlebakk JG, Katz PO, Camacho-Lobato L, Castell DO. Proton pump inhibitors: better acid suppression when taken before a meal than without a meal. Aliment Pharmacol Ther. 2000 Oct;14(10):1267-72.
3: Sostek MB, Chen Y, Andersson T.Effect of timing of dosing in relation to food intake on the pharmacokinetics of esomeprazole.Br J Clin Pharmacol. 2007 Sep;64(3):386-90.