How should INH be stored by patients?

The correct way to store INH (Isoniazid) is in a cool, dry place away from light. This storage condition is essential because it helps maintain the medication's stability and effectiveness over its shelf life.

A warm and humid environment can lead to the degradation of the drug, causing it to lose potency, which could affect treatment outcomes. Storing INH in a cool, dry area prevents moisture and heat from affecting the chemical structure of the medication.

Keeping the medication away from light is also crucial, as exposure to light can cause photodegradation, further compromising the drug's integrity.

While refrigeration is effective for preserving some medications, it is not necessary for INH and may not be suitable as it can introduce moisture. Additionally, storing it in a locked cabinet can be useful for security reasons, but it does not address the critical temperature and humidity factors needed for the proper preservation of the medication.