propoxyphene napsylate/acetaminophen - oral, Darvocet A500, Darvocet-N (cont.)
USES: This combination medication is used to treat mild to moderate pain. Propoxyphene is a narcotic pain reliever (opiate-type) that acts on certain centers in the brain to give you pain relief. Acetaminophen is a non-narcotic pain reliever.
HOW TO USE: Read the Medication Guide provided by your pharmacist before you start taking propoxyphene napsylate/acetaminophen and each time you get a refill. If you have any questions, ask your doctor or pharmacist.Take this medication by mouth as directed by your doctor. It may be taken with food if stomach upset occurs, however, the drug may not work as well. Consult your doctor or pharmacist about other ways to reduce stomach upset (e.g., antihistamines, lying down for 1-2 hours with minimal head movement).Dosage is based on your medical condition and response to therapy. Pain medications work best if used when the first signs of pain occur. If you wait until the pain worsens, this medication may not work as well.Use this medication exactly as prescribed. Do not exceed the maximum daily dose of propoxyphene napsylate (600 milligrams per day).Do not increase your dose, take it more often or use it longer than prescribed because it can be habit-forming. If this drug is prescribed for an extended period of time, do not suddenly stop using it without your doctor's approval.When used for an extended period, this medication may not work as well and may require different dosing. Talk with your doctor if this medication stops working well.This medication contains acetaminophen. Do not take more of it than recommended (see Side Effects section).Inform your doctor if your pain persists or worsens.
SIDE EFFECTS: Nausea, vomiting, constipation, lightheadedness, dizziness, drowsiness, headache, or vision changes may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Tell your doctor immediately if any of these serious side effects occur: mental/mood changes.Tell your doctor immediately if this highly unlikely but very serious side effect occurs: change in the amount of urine.If you do not have liver problems, the adult maximum dose of acetaminophen is 4 grams per day (4000 milligrams). If you take more than the maximum daily amount, it may cause serious (possibly fatal) liver disease. Propoxyphene may also rarely cause liver disease. Seek immediate medical attention if you have any of the following symptoms of liver damage: severe nausea/vomiting, stomach/abdominal pain, yellowing eyes or skin, dark urine, extreme fatigue.If you have liver problems, consult your doctor or pharmacist for a safe dosage of this medication.A serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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