How should INH be stored to maintain its effectiveness?

Isoniazid (INH) should indeed be stored at room temperature, protected from light and moisture, to maintain its effectiveness. Storing medications like INH in a stable environment helps preserve their chemical stability and potency over time.

Room temperature storage allows the drug to remain within the ideal temperature range that ensures its effectiveness. Light and moisture can both lead to degradation of the medication, which can cause it to lose its therapeutic properties. For this reason, keeping it in a light-resistant container in a dry place is essential.

In contrast, refrigeration or freezing could create conditions that are not suitable for INH, as temperature extremes might cause the drug to break down or change chemically. Humid environments would similarly introduce moisture that could degrade the medication, making it less effective when needed for treatment. Therefore, the recommended storage method is key to ensuring that INH maintains its expected efficacy.