Painkillers, also known as analgesics, are medications that are used to relieve pain. There are several different types of painkillers, including nonsteroidal anti-inflammatory drugs (NSAIDs), acetaminophen, and opioids.

NSAIDs, such as ibuprofen and naproxen, work by reducing inflammation and swelling. They are often used to treat headaches, muscle aches, and pain caused by inflammation. It is often used to treat mild to moderate pain, such as headache and muscle aches.

Opioids, such as tramadol and oxycodone, are powerful painkillers that work by binding to opioid receptors in the brain and spinal cord. They are typically used to treat severe pain, such as cancer pain or post-surgical pain. However, they can be addictive and should be used with caution.

It is important to remember that painkillers should only be used as directed by a healthcare provider. Overuse or improper use of painkillers can lead to serious side effects, including stomach ulcers, kidney damage, and addiction. Always follow the dosage and frequency instructions on the label and do not exceed the recommended amount.