See also Warning section.
Take this medication by mouth with or without food as directed by your doctor. The dosage is based on your medical condition and response to treatment.
For migraine headache, take this medication at the first sign of a migraine as directed by your doctor, usually 2 capsules first, followed by 1 capsule every hour until the headache is relieved. Do not take more than 5 capsules in a 12-hour period.
For tension headache, take as directed by your doctor, usually every 4 hours as needed. Do not take more than 8 capsules in a 24-hour period.
Pain medications work best if they are used as the first signs of pain occur. If you wait until the pain has worsened, the medication may not work as well.
Along with its benefits, this medication may rarely cause abnormal drug-seeking behavior (addiction). This risk may be increased if you have abused alcohol or drugs in the past. Take this medication exactly as prescribed to lessen the risk of addiction.
Do not use this medication more often or for longer than prescribed. Tell your doctor if you need to use this medication more often, if the medication is not working as well, or if you have more frequent or worse headaches, or use this medication for more than 2 headache episodes a week. Your doctor may need to change your medication and/or add another medication to help prevent headaches.