Painkillers 20mg are a smaller version of Painkillers. Like the antibiotics they are not always reliable for sometimes your pain can be too severe and they will have no effect. They can be found in hospitals, houses, grocery store, super markets, and farmhouses. They are not rare but aren't very efficient. Although most of the time they will work depending on how bad the pain is. They are pretty much the same as the antibiotics: small packages with red lines instead of blue ones.