If to consider the painkillers, then most of them are analgesics. These drugs can be divided into two groups: narcotic and non-narcotic. The painkillers that can suppress pain include morphine, promedol, omnopon, and many other means. Non-narcotic pain medications include aspirin, paracetamol, analgin, and others. Most often, they are used to relieve pain in muscles, teeth, a headache or weakness from catching a cold. Also, such drugs can be divided into painkillers and non-analgesics. There are also several categories here: carminatives (dill water, carbol), antispasmodics (papaverine, no-spa), antihypertensive drugs, vasodilators (nitroglycerin). If you feel severe pain, you should seek medical help before using a strong painkiller. If you feel severe pain, you should seek medical help before using a strong painkiller such as Tramadol.