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Halfprin

Generic Name: aspirin (oral) (AS pir in)
Brand Name: Arthritis Pain, Aspir 81, Aspir-Low, Bayer Childrens Aspirin, Durlaza, Ecotrin, Ecpirin, Fasprin, Halfprin, Miniprin

Medically reviewed on Apr 2, 2018

What is Halfprin?

See also: Orencia

Halfprin is a salicylate (sa-LIS-il-ate). It works by reducing substances in the body that cause pain, fever, and inflammation.

Halfprin is used to treat pain, and reduce fever or inflammation. This medicine is sometimes used to treat or prevent heart attacks, strokes, and chest pain (angina). This medicine should be used for cardiovascular conditions only under the supervision of a doctor.

Halfprin may also be used for purposes not listed in this medication guide.

Important Information

You should not use Halfprin if you have a bleeding disorder such as hemophilia, a recent history of stomach or intestinal bleeding, or if you are allergic to an NSAID (non-steroidal anti-inflammatory drug).

Halfprin can cause Reye's syndrome, a serious and sometimes fatal condition in children.

Before taking this medicine

Do not give Halfprin to a child or teenager with a fever, flu symptoms, or chicken pox. Halfprin can cause Reye's syndrome, a serious and sometimes fatal condition in children.

You should not use Halfprin if you are allergic to it, or if you have:

  • a recent history of stomach or intestinal bleeding;

  • a bleeding disorder such as hemophilia; or

  • if you have ever had an asthma attack or severe allergic reaction after taking Halfprin or an NSAID (non-steroidal anti-inflammatory drug).

Tell your doctor if you have ever had:

Taking Halfprin during late pregnancy may cause bleeding in the mother or the baby during delivery. Tell your doctor if you are pregnant or plan to become pregnant.

You should not breast-feed while using this medicine.

How should I take Halfprin?

Use exactly as directed on the label, or as prescribed by your doctor.

Take with food if Halfprin upsets your stomach.

Do not crush, chew, break, or open an enteric-coated or delayed-release pill. Swallow it whole.

The chewable tablet form of aspirin must be chewed before swallowing.

If you use the orally disintegrating tablet or the dispersible tablet, follow all dosing instructions provided with your medicine.

If you need surgery, tell your surgeon you currently use this medicine. You may need to stop for a short time.

Do not take this medicine if you smell a strong vinegar odor in the Halfprin bottle. The medicine may no longer be effective.

Store at room temperature away from moisture and heat.

What happens if I miss a dose?

Since Halfprin is used when needed, you may not be on a dosing schedule. Skip any missed dose if it's almost time for your next dose. Do not use two doses at one time.

What happens if I overdose?

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

Overdose symptoms may include temporary hearing loss, seizure (convulsions), or coma.

What should I avoid while taking Halfprin?

Avoid alcohol. Heavy drinking can increase your risk of stomach bleeding.

If you are taking Halfprin to prevent heart attack or stroke, avoid also taking ibuprofen (Advil, Motrin). Ibuprofen may make this medicine less effective. If you must use both medications, take the ibuprofen at least 8 hours before or 30 minutes after you take the this medicine (non-enteric coated form).

Ask a doctor or pharmacist before using other medicines for pain, fever, swelling, or cold/flu symptoms. They may contain ingredients similar to Halfprin (such as magnesium salicylate, ibuprofen, ketoprofen, or naproxen).

Halfprin side effects

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

Stop using Halfprin and call your doctor at once if you have:

  • ringing in your ears, confusion, hallucinations, rapid breathing, seizure (convulsions);

  • severe nausea, vomiting, or stomach pain;

  • bloody or tarry stools, coughing up blood or vomit that looks like coffee grounds;

  • fever lasting longer than 3 days; or

  • swelling, or pain lasting longer than 10 days.

Common side effects may include:

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.

What other drugs will affect Halfprin?

Ask your doctor before using Halfprin if you take an antidepressant. Taking certain antidepressants with this medicine may cause you to bruise or bleed easily.

Ask a doctor or pharmacist before using Halfprin with any other medications, especially:

This list is not complete. Other drugs may affect Halfprin, including prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.

Further information

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.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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