For Tylenol, doctors generally recommend using the medication within four or five years of opening the bottle (via Insider). Keeping it in a dry and cool location can also help extend its shelf life. Also, Tylenol in tablet or capsule form can be expected to last longer than its liquid formulation, which should be used by the expiration date. Can I take Tylenol that expired 6 months ago? Tylenol that’s six months past expiration is unlikely to be harmful, but it may have lost some potency. For best results, use medications before their expiration date. If it’s the only option available and you need pain relief, it’s generally considered safe—but replacing it is the better choice. Is Expired Tylenol Safe To Take? In our latest question and answer, the pharmacist discusses whether or not expired Tylenol (acetaminophen) is safe and effective to take. Expired acetaminophen is usually still safe and effective. Here’s what the science says about drug expiration dates and when to toss your old Tylenol. Expiration dates on medications are crucial for safety and effectiveness. While most expired medications don't become toxic, they may lose potency over time. Taking expired Tylenol (acetaminophen) for minor aches may be acceptable short-term, but it's essential to replace it promptly. The U.S. Food and Drug Administration (FDA) requires expiration dates on all medications since 1979 to ensure. Can Tylenol be outdated? Discover the truth about acetaminophen's expiration date, potency loss over time, proper storage, and safety concerns with expired medications. Did you know TYLENOL® and other OTC medications expire? Check expiration dates in your medicine cabinet and learn what to do with expired medication. Tablets vs. Liquid Tylenol Solid tablets and caplets are the most stable formulation. They hold up reasonably well past the expiration date when stored properly, because there’s very little moisture for bacteria to grow in or for the drug to react with. Liquid Tylenol, especially children’s liquid suspensions, is a different story. Tylenol can retain potency for up to 1-3 years past expiration, but effectiveness and safety decline over time. Check your labels, folks. A pharmacist tells The Post that taking these four expired medications can do serious damage to your health.