The expiration period of a product depends on the specific item in question. It's important to check the product packaging or label, where the expiration date is usually clearly indicated. If you are unsure about the expiry or cannot find the date, it's best to consult a pharmacist or the relevant healthcare professional. Using products past their expiration date can lead to reduced effectiveness and may pose safety concerns, so caution is advised. If you have any doubts, please reach out to a specialist doctor for guidance.