Final answer:
When taking omeprazole, a proton-pump inhibitor, the capsule should be swallowed whole and can be taken without food. Antacids should not be taken at the same time as omeprazole to avoid interference with its effectiveness.
Step-by-step explanation:
A nurse providing instructions for a client with a new prescription for omeprazole oral capsules should include that the medication must be swallowed whole. Omeprazole is a proton-pump inhibitor that works by decreasing the amount of acid made in the stomach. It is important for clients to understand that the integrity of the capsule should not be compromised, as the medication is formulated to dissolve slowly. Additionally, omeprazole can be taken before eating, but it does not need to be taken with food. While antacids can be used in combination with omeprazole, they should not be taken simultaneously, as antacids can interfere with the absorption and effectiveness of omeprazole.