Enteric coated pills travel intact through the acids of the stomach and do not begin to dissolve until they reach the small intestine. This means they do not dissolve for at least 2 hours, typically being fully dissolved by the 2.5 or 2.75-hour point.

Acid resistant capsules are often used when:

• The lining of the stomach must be protected from potentially harmful or irritating substances.
• The substance contained within the capsule must reach a lower part of the digestive tract before dissolving to successfully administer the intended contents.

Capsuline enteric capsules are made with plant-derived HPMC and HPMCP, the latter is the enteric ingredient that only breaks down in environments with a pH of 5.5 or higher.