How long is nizoral shampoo good after the expiration date?

Nizoral shampoo, like most medications and personal care products, is generally most effective before its expiration date, which indicates the period during which the manufacturer guarantees its safety and efficacy. After the expiration date, the active ingredients may degrade, potentially reducing effectiveness, but it may still be safe to use for a short period. It's advisable to check for any changes in appearance, smell, or texture and consult a healthcare professional if in doubt. For the best results and safety, using products before their expiration date is recommended.