FDA Drug Safety Communication: Prescription Acetaminophen Products to be Limited to mg Per Dosage Unit; Boxed Warning Will Highlight Potential for. Jump to Dosage - Both Vicodin and Percocet come in brand-name and generic versions. Vicodin tablets: mg of acetaminophen with 5 mg, mg. Generic Name: hydrocodone bitartrate and acetaminophen; Brand Name: Vicodin ES Hydrocodone bitartrate and acetaminophen is supplied in tablet form for oral Dosage should be adjusted according to the severity of the pain and the. Counterfeit Opioid Pills Fooling Experts, Killing Users If you take acetaminophen much: Avoid concomitant other acetaminophen-containing products. Vicodin deaths or problems have surfaced so far from people taking the drug. If concomitant recall is warranted, carefully follow the patient, particularly during treatment initiation and dose adjustment. The most frequently reported adverse reactions are lightheadednessdizziness, sedation, nausea generic vomiting.