Tramadol is an opioid pain relief medication that works as pain receptors which block the pain signal to the body, and also stop the brain from feeling or responding to the pain. It is available in oral form. You can take it as an injection but it's better to follow your doctor's suggestion of what is a more effective form to relieve your pain. It is a strong pain killer medicine which is used to treat moderate to severe pain. It can be habit forming so your doctors will tell you how to reduce that risk of addiction. Do not consume alcohol while taking tramadol because you can face serious side effects. The dosage of tramadol is dependent on your doctor, to prescribe on the basis of your pain and how sensitive you are to the pain. If you are taking tramadol in capsule or tablet form, take it with some glass of water and swallow it. If you are taking it as liquid form make sure to take it with the help of a measuring cup.