Tramadol-F HCI 100mg are unlike heavier opiates/opioids such as morphine and methadone, Tramadol is not covered by the Opium Act. It is an opioid analgesic that is similar to morphine. Tramadol is a strong analgesic that is dosed based on the amount of pain. It is used to treat severe pain after injury, surgery, or cancer, as well as nerve pain and joint problems related to osteoarthritis. Brand: GMP Read more on the NHS website here Take this medication by mouth as directed by your doctor, usually every 4 to 6 hours as needed for pain relief. You may take this drug with or without food. If you have nausea, it may help to take this drug with food. Ask your doctor or pharmacist about other ways to decrease nausea (such as lying down for 1 to 2 hours with as little head movement as possible. Read the Medication Guide provided by your pharmacist before you start taking Tramadol and each time you get a refill. If you have any questions, ask your doctor or pharmacist.