Which type of medication formulation is designed to dissolve in the stomach?

Effervescent tablets are specifically designed to dissolve in the stomach. This formulation typically contains a combination of acids and carbonates that react with water, producing carbon dioxide and creating a solution. When dissolved, the active ingredients are quickly released, allowing for rapid absorption in the stomach. This is beneficial for medications that need to take effect quickly and can be easily administered in a liquid form.

In contrast, enteric-coated tablets are designed to resist the acidic environment of the stomach and dissolve in the more alkaline conditions of the intestines. Extended-release and time-release formulations are designed to release their active ingredients slowly over time rather than immediately or in a rapid manner, which is not aligned with the characteristics of effervescent tablets.