15. Which of the following tablets dissolves in the intestines?
Answer: D
Enteric-coated tablets dissolve in the intestines.
Enteric-coated tablets are specifically designed to dissolve in the intestines rather than in the stomach. This coating protects the medication from the acidic environment of the stomach and allows for targeted release in the intestinal tract.
A) Buccal
Buccal tablets are designed to dissolve in the cheek pouch, allowing for absorption through the mucous membranes in the mouth. They are not intended to dissolve in the intestines, making this option incorrect.
B) Sublingual
Sublingual tablets dissolve under the tongue for rapid absorption into the bloodstream. Like buccal tablets, they are not formulated to dissolve in the intestines, thus this option is also incorrect.
C) Effervescent
Effervescent tablets are designed to dissolve in water before ingestion, releasing carbon dioxide and creating a fizzy solution. They do not dissolve directly in the intestines and therefore do not fit the criteria of the question.
D) Enteric-coated
Enteric-coated tablets are specifically designed to resist dissolution in the stomach and to dissolve in the intestines instead. This allows for a delayed release of the medication until it reaches a more neutral pH environment, making this option the correct answer.
Conclusion
Enteric-coated tablets are uniquely formulated to dissolve in the intestines, distinguishing them from buccal, sublingual, and effervescent tablets, which do not serve this purpose. The other options fail to meet the requirement of intestinal dissolution, confirming that D is the definitive correct choice.