West Valley Medical Center Close Window
Library Search Go Advanced Search
Español (Inicio)

Medications

Acetaminophen; Pentazocine oral tablets

What is this medicine?

ACETAMINOPHEN; PENTAZOCINE (a set a MEE noe fen; pen TAZ oh seen) is a pain reliever. It is used to treat mild to moderate pain.

How should I use this medicine?

Take this medicine by mouth with a full glass of water. Follow the directions on the prescription label. If the medicine upsets your stomach, take the medicine with food or milk. Do not take more medicine than you are told to take.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

Patients over 65 years old may have a stronger reaction and need a smaller dose.

What side effects may I notice from receiving this medicine?

Side effects that you should report to your doctor or health care professional as soon as possible:

  • allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue

  • breathing difficulties, wheezing

  • confusion

  • light headedness or fainting spells

  • severe stomach pain

  • yellowing of the skin or the whites of the eyes

Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):

  • constipation

  • drowsiness

  • nausea

What may interact with this medicine?

Do not take this medicine with any of the following medications:

  • butorphanol

  • buprenorphine

  • nalbuphine

This medicine may also interact with the following medications:

  • alcohol

  • antihistamines for allergy, cough and cold

  • certain medicines for depression, anxiety, or psychotic disturbances

  • MAOIs like Carbex, Eldepryl, Marplan, Nardil, and Parnate

  • medicines for sleep

  • muscle relaxants

  • narcotic medicines (opiates) for pain

  • procarbazine

  • sibutramine

  • tramadol

What if I miss a dose?

If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.

Where should I keep my medicine?

Keep out of the reach of children. This medicine can be abused. Keep your medicine in a safe place to protect them from theft. Do not share this medicine with anyone. Selling or giving away this medicine is dangerous and is against the law.

This medicine may cause accidental overdose and death if it taken by other adults, children, or pets. Mix any unused medicine with a substance like cat litter or coffee grounds. Then throw the medicine away in a sealed container like a sealed bag or a coffee can with a lid. Do not use the medicine after the expiration date.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Protect from light.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:

  • brain tumor

  • drug abuse or addiction

  • head injury

  • heart or circulation problems

  • if you often drink alcohol

  • kidney disease or problems going to the bathroom

  • liver disease

  • lung disease, asthma, or breathing problems

  • an unusual or allergic reaction to acetaminophen, pentazocine, other medicines, foods, dyes, or preservatives

  • pregnant or trying to get pregnant

  • breast-feeding

What should I watch for while using this medicine?

Tell your doctor or health care professional if your pain does not go away, if it gets worse, or if you have new or a different type of pain. You may develop tolerance to the medicine. Tolerance means that you will need a higher dose of the medicine for pain relief. Tolerance is normal and is expected if you take the medicine for a long time.

Do not suddenly stop taking your medicine because you may develop a severe reaction. Your body becomes used to the medicine. This does NOT mean you are addicted. Addiction is a behavior related to getting and using a drug for a non-medical reason. If you have pain, you have a medical reason to take pain medicine. Your doctor will tell you how much medicine to take. If your doctor wants you to stop the medicine, the dose will be slowly lowered over time to avoid any side effects.

You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.

There are different types of narcotic medicines (opiates) for pain. If you take more than one type at the same time, you may have more side effects. Give your health care provider a list of all medicines you use. Your doctor will tell you how much medicine to take. Do not take more medicine than directed. Call emergency for help if you have problems breathing.

This medicine will cause constipation. Try to have a bowel movement at least every 2 to 3 days. If you do not have a bowel movement for 3 days, call your doctor or health care professional.


NOTE:This sheet is a summary. It may not cover all possible information. If you have questions about this medicine, talk to your doctor, pharmacist, or health care provider. Copyright© 2017 Elsevier