Shop Panadol Extra Strength Pain Reliever & Fever Reducer and read reviews at Walgreens. Pickup & Same Day Delivery available on most store items. Buy Panadol Extra Strength 500 mg Acetaminophen Caplets, 50 Count, Pain Relief and Fever Reducer at Walmart.com. HSA/FSA eligible, making your health and wellness purchases more manageable As one of the world’s leading paracetamol-based pain relievers, Panadol’s clinically-proven products can treat your pain and get you feeling yourself again. Panadol, Panadol Actifast, Panadol Advance and Panadol Extra are trademarks of the GSK group of companies. Paracetamol, [a] or acetaminophen, [b] is an analgesic and antipyretic agent used to treat fever and mild to moderate pain. [14][15] It is a widely available over-the-counter drug sold generically or under various brand names, including Tylenol and Panadol. Paracetamol (Panadol, Calpol, Alvedon) is an analgesic and antipyretic drug that is used to temporarily relieve mild-to-moderate pain and fever. It is commonly included as an ingredient in cold and flu medications and is also used on its own. Panadol is widely used and trusted by millions of people around the world due to its effectiveness and safety profile. In this article, we will delve into the uses, benefits, as well as the side effects and warnings associated with Panadol.