31. Which of the following is an oral dosage form?
Answer: A
Troche is an oral dosage form.
A troche is a solid dosage form designed to dissolve in the mouth, allowing for the active ingredients to be absorbed through the mucous membranes, making it a suitable oral dosage form.
A) Troche
This option is correct as a troche is intended for oral administration. It is designed to dissolve in the mouth, delivering medication for local or systemic effects.
B) Unguent
An unguent is an ointment or salve used for topical application, primarily to treat skin conditions or provide moisture. Therefore, it is not an oral dosage form.
C) Collodion
Collodion is a liquid preparation containing nitrocellulose used for topical applications, such as in bandaging or as a skin protective barrier. It is not meant to be ingested and thus does not qualify as an oral dosage form.
D) Liniment
A liniment is a liquid or semi-liquid preparation applied to the skin to relieve pain or stiffness. Its purpose is for external use only, making it unsuitable as an oral dosage form.
Conclusion
The troche stands out as the only option that is specifically designed for oral administration, allowing it to effectively deliver medication through the oral cavity. All other options are formulated for topical use and do not serve as oral dosage forms, reinforcing why the troche is the correct choice.