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Drugs and diseases reference index

Drugs reference index «Ultracet»



Generic name: Tramadol hydrochloride, AcetaminophenBrand names: Ultracet

Why is Ultracet prescribed?

Ultracet is used to treat moderate to severe pain for a period of five days or less. It contains two pain-relieving agents. Tramadol, known technically as an opioid analgesic, is a narcotic pain reliever. Acetaminophen is the active ingredient in the over-the-counter pain remedy Tylenol.

Most important fact about Ultracet

Take only the amount and number of doses prescribed. Exceeding the recommended dosage can lead to reduced breathing, liver damage, seizures, and death.

How should you take Ultracet?

Follow dosage recommendations strictly, and stop taking the drug as soon as possible.

  • If you miss a dose...Take Ultracet only as needed. Never take two doses at once.
  • Storage instructions...Store Ultracet in a tight container at room temperature.

What side effects may occur?

  • Side effects may include:Constipation, increased sweating, sleepiness

Why should Ultracet not be prescribed?

Avoid Ultracet if you have had an allergic reaction to either of its active ingredients, or to any other narcotic pain reliever. Do not take Ultracet if you have been drinking, or have taken any other narcotic drug, sleep aid, tranquilizer, or antidepressant; your consciousness or breathing could be compromised. Avoid Ultracet if you've ever been dependent on other narcotic pain relievers.

Special warnings about Ultracet

Ultracet has caused serious and even fatal allergic reactions in some people, typically after the first dose. Seek medical help immediately if you begin to have trouble breathing or break out in hives or blisters.

Ultracet may cause seizures, particularly in those with epilepsy, a history of seizures, or in those at special risk for seizures, such as people with head trauma, metabolic disorders, or central nervous system infections, and those going through alcohol or drug withdrawal.

Inform your doctor if you have had a head injury, as Ultracet can increase pressure around the brain. Also let the doctor know if you have liver disease, since Ultracet can affect the liver.

Do not take Ultracet if you will be driving a car or operating dangerous machinery. Ultracet may impair the mental and physical abilities needed for driving

Ultracet poses a danger of mental and physical addiction. Never exceed the prescribed dosage. If you experience withdrawal symptoms—which can occur if you stop taking the drug abruptly—consult your doctor for a tapering regimen. Withdrawal symptoms include anxiety, chills, diarrhea, hallucinations, insomnia, nausea, pain, erection of hair, sweating, tremors, and upper respiratory symptoms.

The safety and effectiveness of Ultracet have not been established in children under the age of 16 years.

Possible food and drug interactions when taking Ultracet

If Ultracet is taken with certain other drugs, the effects of either may be increased, decreased, or altered. It is especially important to check with your doctor before combining Ultracet with the following:

Acetaminophen-containing products such as TylenolAntidepressant drugs classified as MAO inhibitors, including Nardil and ParnateAntipsychotic drugs such as Thorazine and HaldolCarbamazepine (Tegretol)Cyclobenzaprine (Flexeril)Digoxin (Lanoxin)Other narcotic pain relievers such as Percodan and VicodinPromethazine (Phenergan)Serotonin-boosting antidepressants such as Paxil and ProzacSleep aids such as Halcion and RestorilTranquilizers such as Valium and XanaxTricyclic antidepressants such as Elavil and TofranilWarfarin (Coumadin)

Special information if you are pregnant or breastfeeding

Taken during pregnancy, Ultracet can be fatal to the developing baby, or lead to seizures and withdrawal symptoms in the newborn. If you are pregnant, inform your doctor immediately.

Ultracet appears in breast milk and is not recommended for nursing mothers.

Recommended dosage for Ultracet


The usual dose of Ultracet is two tablets every 4 to 6 hours as needed for pain relief up to a maximum of 8 tablets per day for no more than 5 days.

If you have kidney problems, the doctor may reduce the dose to 2 tablets every 12 hours. Older adults may also receive a low dose.


An Ultracet overdose can be fatal. If you suspect an overdose, seek emergency treatment immediately.

  • Symptoms of Ultracet overdose may include:Cardiac arrest, coma, depressed breathing, a generally ill feeling, lethargy, loss of appetite, nausea, pallor, profuse perspiration, seizures, and vomiting
  • Ultracet Prescribing Information (FDA)
  • Ultracet Advanced Consumer (Micromedex) - Includes Dosage Information
  • Ultracet MedFacts Consumer Leaflet (Wolters Kluwer)
  • Ultracet Consumer Overview