Methylnaltrexone Bromide

Pharm Company: * MYLAN LABS LTD
Category: Laxative

Methylnaltrexone (MNTX, brand name Relistor), used in form of methylnaltrexone bromide (INN, USAN, BAN), is a medication that acts as a peripherally acting μ-opioid receptor antagonist that acts to reverse some of the side effects of opioid drugs such as constipation without significantly affecting pain relief or precipitating withdrawals. Because MNTX is a quaternary ammonium cation, it cannot cross the blood–brain barrier, and so has antagonist effects throughout the body, counte... [wikipedia]

* May have multiple approval dates, manufacturers, or labelers.
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