Which option is listed as a disadvantage of solutions?

• A. Easy to package
• B. Less stable
• C. Taste masking is perfect
• D. Dose adjustment is difficult

Answer: (B)

Disadvantages of solutions center on stability. When a drug is fully dissolved in a solvent, it is more exposed to conditions that promote degradation and growth of microbes. Hydrolysis, oxidation, and photolysis can occur more readily in the dissolved state, especially in aqueous solutions, leading to loss of potency over time. Because water-based liquids can support microbial growth, formulations often require preservatives, antioxidants, careful pH control, and proper storage (cool, protected from light) to maintain effectiveness.

Easy to package is an advantage of solutions because there’s no solid sediment to settle and no compression issues, making handling simpler. Taste masking is not typically a strong advantage because once dissolved, the drug is more directly tasted, making masking difficult. Dose adjustment is generally easier with solutions since dosing can be achieved by measuring volume, rather than trying to divide a pellet or tablet dose.