70. Which of the following antibiotic suspensions must be refrigerated?

Answer: B

Explanation:

Clindamycin (Cleocin) antibiotic suspension must be refrigerated.

Clindamycin (Cleocin) is an antibiotic suspension that requires refrigeration to maintain its stability and effectiveness. Proper storage conditions are essential to ensure the medication remains safe for use.

A) Azithromycin (Zithromax)

Azithromycin (Zithromax) does not require refrigeration and can be stored at room temperature. While it is important to keep it in a cool, dry place, refrigeration is not necessary for its stability.

B) Clindamycin (Cleocin)

Clindamycin (Cleocin) is the only option that must be refrigerated. This is critical for preserving the medication's effectiveness and preventing degradation over time.

C) Cephalexin (Keflex)

Cephalexin (Keflex) may be stored at room temperature and does not require refrigeration. Its stability is maintained at standard room conditions, making refrigeration unnecessary.

D) Sulfamethoxazole/Trimethoprim (Septra)

Sulfamethoxazole/Trimethoprim (Septra) also does not require refrigeration. It can be safely stored at room temperature without compromising its efficacy.

Conclusion

Clindamycin (Cleocin) is the only antibiotic suspension among the options that specifically requires refrigeration for proper storage. All other options, including Azithromycin, Cephalexin, and Sulfamethoxazole/Trimethoprim, can be stored at room temperature without risk of degradation. Thus, understanding the storage requirements for these medications is essential for ensuring their effectiveness and safety.