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.

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.