Ultram is produced by Ortho-McNeil Pharmaceutical. Ultram comes in 50 mg tablets and is taken orally. It is prescribed at 50-100 mg every 4 to 6 hours, not to exceed 400 mg per day.

Ultracet is produced by Ortho-McNeil Pharmaceutical. It comes in tablet form and is taken orally. Each tablet contains both 37.5 mg tramadol and 325 mg acetaminophen/paracetamol.

Acetaminophen can cause liver problems at high doses. It may not be safe for heavy alcohol drinkers or those with liver problems to take even moderately high levels of acetaminophen.