Final answer:
Cough drops are categorized as solid drug forms used to alleviate cough symptoms.
Explanation:
In the context of cough drops, a cough drop is a solid drug form. Solid drug forms include tablets, capsules, and lozenges like cough drops that dissolve slowly in the mouth to relieve cough symptoms. These are different from liquid forms such as syrups or semi-solid forms like creams.
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