April 27, 2017
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Discontinued Warning IconPlease Note: This Brand Name drug is no longer available in the US.
(Generic versions may still be available.)

Darvocet-N Patient Information Including Side Effects

Brand Names: Balacet, Darvocet A500, Darvocet-N 100, Darvocet-N 50, Propacet 100

Generic Name: acetaminophen and propoxyphene (Pronunciation: a SEET a MIN oh fen and proe POX i feen)

What is acetaminophen and propoxyphene (Darvocet-N)?

Acetaminophen and propoxyphene was withdrawn from the U.S. market in November 2010.

Propoxyphene is in a group of drugs called narcotic pain relievers.

Acetaminophen is a less potent pain reliever and a fever reducer that increases the effects of propoxyphene.

The combination of acetaminophen and propoxyphene is used to relieve mild to moderate pain with or without fever.

Acetaminophen and propoxyphene may also be used for purposes not listed in this medication guide.

Acetaminophen-Propoxyphene 500 mg-100 mg-PLI

oblong, pink, imprinted with P500

Acetaminophen-Propoxyphene 650-100 mg Or-QUA

oblong, pink, imprinted with 5112 V

Acetaminophen-Propoxyphene 650-100 mg Wht-QUA

oblong, white, imprinted with 5113 V

APAP-Propoxyphene 650 mg-100 mg-TEV

oblong, pink, imprinted with 93, 890

APAP-Propoxyphene 650-100 mg-MYL

oblong, pink, imprinted with 155, MYLAN

APAP-Propoxyphene 650-100-TEV

oblong, white, imprinted with 93 490

APAP-Propoxyphene 650-65 mg-MYL

oblong, orange, imprinted with 130, MYLAN

APAP-Proproxyphene 650 mg-100 mg-Pink-MAL

oblong, pink, imprinted with 1772, M inside square

APAP-Proproxyphene 650 mg-100 mg-White-MAL

oval, white, imprinted with 1721, M inside square

Balacet 325 mg-100 mg-COR

oblong, lavender, imprinted with P325

Darvocet A500

oval, orange, imprinted with A500

Darvocet N-100

oblong, orange, imprinted with Lilly, DARVOCET-N 100

Darvocet-N 100-XAN

oblong, orange, imprinted with DARVOCETN-N 100

Darvocet-N 50 mg

oblong, orange, imprinted with Lilly DARVOCET N-50

Darvocet-N 50-XAN

oblong, orange, imprinted with Darvocet-N 50

Propoxyphene-APAP 65-650 mg-WAT

oblong, orange, imprinted with 714 65 650, WATSON

What are the possible side effects of acetaminophen and propoxyphene (Darvocet-N)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have a serious side effect such as:

  • shallow breathing, slow heartbeat, feeling like you might pass out;
  • chest pain, feeling short of breath;
  • confusion, unusual thoughts or behavior;
  • seizure (convulsions); or
  • nausea, stomach pain, loss of appetite, itching, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes).

Less serious side effects include:

  • feeling dizzy or drowsy;
  • mild nausea, vomiting, upset stomach, constipation;
  • headache, blurred vision; or
  • dry mouth.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Read the Darvocet-N (propoxyphene napsylate and acetaminophen) Side Effects Center for a complete guide to possible side effects

What is the most important information I should know about acetaminophen and propoxyphene (Darvocet-N)?

Acetaminophen and propoxyphene was withdrawn from the U.S. market in November 2010.

Propoxyphene may be habit-forming and should be used only by the person it was prescribed for. Keep the medication in a secure place where others cannot get to it.

Do not use acetaminophen and propoxyphene if you have taken an MAO inhibitor such as furazolidone (Furoxone), isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl, Emsam), or tranylcypromine (Parnate) in the last 14 days. Serious, life threatening side effects can occur if you use acetaminophen and propoxyphene before the MAO inhibitor has cleared from your body.

Side Effects Centers

Darvocet-N - User Reviews

Darvocet-N User Reviews

Now you can gain knowledge and insight about a drug treatment with Patient Discussions.

Here is a collection of user reviews for the medication Darvocet-N sorted by most helpful. Patient Discussions FAQs

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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