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chlorpheniramine-codeine-acetaminophen

Interactions

Opioids/Butorphanol

This information is generalized and not intended as specific medical advice. Consult your healthcare professional before taking or discontinuing any drug or commencing any course of treatment.

Medical warning:

Moderate. These medicines may cause some risk when taken together. Contact your healthcare professional (e.g. doctor or pharmacist) for more information.

How the interaction occurs:

Butorphanol may prevent your other pain medicine from working.

What might happen:

If you have taken opioid medicines for a while or take large doses of opioids, butorphanol may cause you to experience withdrawal symptoms.If you have only taken opioid medicines for a short time, butorphanol may reduce some of the side effects of your medicine, such as itching or shallow breathing; however, your opioid may not control your pain as well.

What you should do about this interaction:

Let your healthcare professionals (e.g. doctor or pharmacist) know that you are taking these medicines together and how long you have been taking an opioid. If your pain gets worse, or if you have withdrawal symptoms such as trouble sleeping, sweating, widened pupils, runny nose, watering eyes, irritability, weakness, muscle aches/twitching/cramps, stomach cramps, hot/cold flashes, sneezing, vomiting, diarrhea, rapid breathing, fast heartbeat, and/or fever, contact your doctor.Your healthcare professionals may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.

References:

1.Stadol (butorphanol tartrate) US prescribing information. Bristol-Myers Squibb April, 2002.

2.Preston KL, Bigelow GE, Liebson IA. Butorphanol-precipitated withdrawal in opioid-dependent human volunteers. J Pharmacol Exp Ther 1988 Aug; 246(2):441-8.

3.Igarashi A, Amagasa S, Yokoo N, Sato M. Acute withdrawal syndrome in a butorphanol-treated patient: an adverse combination of opioids. Br J Anaesth 2008 Jul;101(1):127-8.

Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, expect as may be authorized by the applicable terms of use.

CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.

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