Which of the following medications would NOT typically shelf-stable?

The choice that would not typically be shelf-stable is liquid suspensions. Liquid suspensions are formulations in which solid particles are dispersed in a liquid medium. These medications can be susceptible to factors such as temperature fluctuations and microbial growth, which may cause them to degrade or separate, resulting in decreased efficacy or safety.

Shelf-stability indicates that a medication can maintain its intended potency and safety over a specific period under recommended storage conditions. Unlike capsules, lotions, and lozenges, which have formulations that allow for better preservation and longer shelf-lives, liquid suspensions require specific handling, including tightly sealed containers and possibly refrigeration, depending on their ingredients. If liquid suspensions are not stored properly or used within a certain timeframe, they can spoil or lose effectiveness, making them less shelf-stable compared to the other forms of medication listed.