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What happens if I miss a dose?

Since this medication is usually taken as needed, you may not be on a dosing schedule. If you are taking the medication regularly, take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

The first signs of an acetaminophen overdose include loss of appetite, nausea, vomiting, stomach pain, sweating, and confusion or weakness. Later symptoms may include pain in your upper stomach, dark urine, and yellowing of your skin or the whites of your eyes.

Overdose symptoms may also include insomnia, restlessness, tremor, dizziness, drowsiness, diarrhea, increased sweating, shallow breathing, confusion, uneven heartbeats, seizure (convulsions), or coma.

What should I avoid while taking acetaminophen, butalbital, and caffeine?

This medication can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert.

Avoid drinking alcohol. It may increase your risk of liver damage while taking acetaminophen.

Ask a doctor or pharmacist before using any other cold, allergy, pain, or sleep medication. Acetaminophen (sometimes abbreviated as APAP) is contained in many combination medicines. Taking certain products together can cause you to get too much acetaminophen which can lead to a fatal overdose. Check the label to see if a medicine contains acetaminophen or APAP.

While you are taking this medication, avoid taking diet pills, caffeine pills, or other stimulants (such as ADHD medications) without your doctor's advice.

What other drugs will affect acetaminophen, butalbital, and caffeine?

Tell your doctor if you regularly use other medicines that make you sleepy (such as cold or allergy medicine, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures, depression, or anxiety). They can add to sleepiness caused by butalbital.

Tell your doctor about all other medicines you use, especially:

• an antibiotic;
• a blood thinner such as warfarin (Coumadin, Jantoven);
• isoniazid (for treating tuberculosis);
• zidovudine (Retrovir, AZT);
• seizure medication such as phenytoin (Dilantin) or phenobarbital (Luminal, Solfoton);
• gout medications such as probenecid (Benemid) or sulfinpyrazone;
• steroids such as prednisone, fluticasone (Advair), mometasone (Asmanex, Nasonex), dexamethasone (Decadron, Hexadrol) and others; or
• an antidepressant such as amitriptyline (Elavil, Vanatrip, Limbitrol), clomipramine (Anafranil), desipramine (Norpramin), imipramine (Janimine, Tofranil), and others.

This list is not complete and other drugs may interact with acetaminophen, butalbital, and caffeine. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.

Where can I get more information?

Your pharmacist can provide more information about acetaminophen, butalbital, and caffeine.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.

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