This medicine is an analgesic, barbiturate, and stimulant combination used to treat tension headaches. ADDITIONAL MONITORING OF YOUR DOSE OR CONDITION may be needed if you are taking anticoagulants, birth control pills, corticosteroids, doxycycline, isoniazid, metronidazole, quinidine, theophylline, or medicine for high blood pressure or heart conditions (beta blockers). Inform your doctor of any other medical conditions, allergies, pregnancy, or breast-feeding. Contact your doctor or pharmacist if you have any questions or concerns about using this medicine. CAUTIONS:DO NOT EXCEED THE RECOMMENDED DOSE or take this medicine for longer than prescribed without checking with your doctor. Exceeding the recommended dose or taking this medicine for longer than prescribed may be habit-forming. AVOID ALCOHOL while you are using this medicine. This medicine will add to the effects of alcohol and other depressants. DO NOT DRIVE, OPERATE MACHINERY, OR DO ANYTHING ELSE THAT COULD BE DANGEROUS until you know how you react to this medicine. Using this medicine alone, with other medicines, or with alcohol may lessen your ability to drive or to perform other potentially dangerous tasks. THIS MEDICINE CONTAINS ACETAMINOPHEN. Do not take additional acetaminophen for pain or fever without checking with your doctor or pharmacist. Ask your pharmacist if you have questions about which medicines contain acetaminophen. Acetaminophen may cause liver damage. If you drink alcohol on a daily basis, do not take this medicine without first discussing it with your doctor. Alcohol use combined with acetaminophen may increase your risk for liver damage. Pain medications work best if they are used as the first signs of pain (or first signs of migraine) occur. If you wait until the pain has significantly worsened, the pain medicine may not work as well. FOR WOMEN THIS MEDICINE IS EXCRETED IN BREAST MILK. DO NOT BREAST-FEED while taking this medicine. POSSIBLE SIDE EFFECTS:SIDE EFFECTS, that may go away during treatment, include drowsiness, dizziness, lightheadedness, or nausea. If they continue or are bothersome, check with your doctor. If you notice other effects not listed above, contact your doctor, nurse, or pharmacist. ADDITIONAL INFORMATION:If YOUR HEADACHE SYMPTOMS do not improve or if they become worse, contact your doctor. DO NOT SHARE THIS MEDICINE with others for whom it was not prescribed. DO NOT USE THIS MEDICINE for other health conditions.