Morphine: What Other Drugs Will Affect Morphine


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What other drugs will affect morphine?


donot Avoid taking morphine if you have used an MAO inhibitor such as isocarboxazid (Marplan), phenelzine (Nardil), rasagiline (Azilect), selegiline (Eldepryl, Emsam), or tranylcypromine (Parnate) within the past 14 days. Side effects can be more severe if you use morphine before the MAO inhibitor has cleared from your body.
donot Do not take morphine with other narcotic pain medications, sedatives, tranquilizers, muscle relaxers, or other medicines that can make you sleepy or slow your breathing. Dangerous side effects may result.

Before taking morphine, tell your doctor if you are using pentazocine (Talwin), nalbuphine (Nubain), butorphanol (Stadol), or buprenorphine (Buprenex, Subutex). If you are using any of these drugs, you may not be able to use morphine, or you may need dosage adjustments or special tests during treatment.

This list is not complete and there may be other drugs that can interact with morphine. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.



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Last updated: March 26, 2008

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