To help avoid taking too much acetaminophen, the makers of extra-strength Tylenol have lowered their maximum daily dose to six pills, which works out as 3,000 mg per day. According to the FDA, the current maximum adult dosage of acetaminophen is 4,000 mg per day. While taking either drug, avoid any other products that contain acetaminophen. People typically take Percocet and Vicodin every 4–6 hours, or less frequently if there is less need. Generally, doctors recommend taking opioids only as needed, rather than continually. The right dosage of Vicodin or Percocet depends on the formula the doctor selects. Seek prompt treatment for symptoms of addiction or overdose: If a person may be becoming addicted to an opioid or may be experiencing an overdose, it is vital that they receive immediate medical care.Take steps to avoid constipation: Opioids can cause constipation.Doing so can cause severe and potentially fatal liver damage. Be aware of possible interactions: Never combine Vicodin and Percocet or take either with anything else containing acetaminophen.any recreational drugs, including alcohol.Before receiving a prescription for either, a person should tell their doctor if they are taking or using: Let the doctor know about any other medications or supplements: Vicodin and Percocet can interact with other substances.Follow the instructions on packaging exactly: A person should not:.Do not reuse it later or lend it to a friend. Use the drug for its intended purpose: A doctor prescribes Vicodin or Percocet to help treat specific symptoms.Take the lowest effective dosage: Take as little as needed to relieve the pain, and never exceed the maximum dosage.To use Vicodin or Percocet safely, follow the doctor’s instructions carefully.

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