Butalbital/acetaminophen (By mouth)
Acetaminophen (a-seet-a-MIN-oh-fen), Butalbital (bue-TAL-bi-tal)
Treats the symptoms of tension headache. This medicine contains a barbiturate.
Cephadyn, Bupap, Promacet, Orbivan CF, Marten-Tab, Phrenilin, Phrenilin Forte, Tencon
There may be other brand names for this medicine.
When This Medicine Should Not Be Used
You should not use this medicine if you have had an allergic reaction to butalbital or acetaminophen (Tylenol®), or if you have porphyria.
How to Use This Medicine
- Your doctor will tell you how much of this medicine to use and how often. Do not use more medicine or use it more often than your doctor tells you to.It is not safe to use more than 4 grams (4,000 milligrams) of acetaminophen in one day (24 hours).
- This medicine is not for long-term use.
- If this medicine upsets your stomach, you may take it with food or milk.
If a dose is missed:
- If you miss a dose or forget to use your medicine, use it as soon as you can. If it is almost time for your next dose, wait until then to use the medicine and skip the missed dose. Do not use extra medicine to make up for a missed dose.
How to Store and Dispose of This Medicine
- Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.
- Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.
- Keep all medicine away from children and never share your medicine with anyone.
Drugs and Foods to Avoid
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
- Avoid using this medicine together with an MAO inhibitor (MAOI) such as Eldepryl®, Marplan®, Nardil®, or Parnate®.
- Tell your doctor if you are using any medicines that make you sleepy. These include sleeping pills, cold and allergy medicine, narcotic pain relievers, and sedatives.
- Do not drink alcohol while you are using this medicine.
- Do not use this medicine together with other medicines that also contain acetaminophen. Taking too much acetaminophen can cause serious medical problems or even death.
- Many medicines contain acetaminophen, including brand names such as Alka-Seltzer Plus®, Comtrex®, Drixoral®, Excedrin Migraine®, Midol®, Sinutab®, Sudafed®, Theraflu®, and Vanquish®. Carefully check the labels of all other medicines you are using to be sure they do not contain acetaminophen.
Warnings While Using This Medicine
- Make sure your doctor knows if you are pregnant or breast feeding, or if you have kidney disease, liver disease, or a stomach disorder.
- This medicine may make you dizzy or drowsy. Avoid driving, using machines, or doing anything else that could be dangerous if you are not alert.
- This medicine may be habit-forming. If you feel that the medicine is not working as well, do not use more than your prescribed dose. Call your doctor for instructions.
- Do not stop using this medicine suddenly without asking your doctor. You may need to slowly decrease your dose before stopping it completely.
- Make sure any doctor or dentist who treats you knows that you are using this medicine. This medicine may affect the results of certain medical tests.
Possible Side Effects While Using This Medicine
Call your doctor right away if you notice any of these side effects:
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Blistering, peeling, red skin rash.
- Dark-colored urine or pale stools.
- Fast heartbeat.
- Increase in how much or how often you urinate.
- Nausea, vomiting, sweating, weakness.
- Numbness in any part of your body.
- Severe drowsiness, confusion, shallow breathing, fainting.
- Trouble swallowing.
- Unusual bleeding or bruising.
- Yellowing of your skin or the whites of your eyes.
If you notice these less serious side effects, talk with your doctor:
- Dry mouth, heartburn.
- Feeling like you are drunk.
- Muscle pain or weakness.
- Mild nausea, vomiting, constipation, stomach pain.
- Ringing in your ears.
If you notice other side effects that you think are caused by this medicine, tell your doctor
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088
- Last Reviewed on 06/12/2013
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This page was last updated: June 18, 2013