Which solid oral dosage form is designed to dissolve or disintegrate slowly in the mouth?

• A. Troche
• B. Cream
• C. Capsule
• D. Suspension

Answer: (A)

This question is about solid oral dosage forms that release medicine by dissolving in the mouth over time. A troche, also known as a lozenge, is designed to sit in the mouth and slowly dissolve as saliva gradually breaks it down. As it dissolves, the drug is released, providing local effect in the oral cavity or, if absorbed through the buccal mucosa, potential systemic delivery.

Cream is a topical preparation applied to skin or mucous membranes, not meant to dissolve in the mouth. Capsule is a swallowable solid that releases its contents in the gastrointestinal tract. Suspension is a liquid dosage form meant to be swallowed or used in the mouth, not a solid that dissolves slowly in the mouth.

So the form that best matches the description is the troche.