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(rocuronium bromide) Injection


ZEMURON (rocuronium bromide) injection is a nondepolarizing neuromuscular blocking agent with a rapid to intermediate onset depending on dose and intermediate duration. Rocuronium bromide is chemically designated as 1-[17β-(acetyloxy)-3α-hydroxy-2β-(4-morpholinyl)-5α-androstan-16β-yl]-1-(2-propenyl)pyrrolidinium bromide.

The structural formula is:

ZEMURON®  (rocuronium bromide) Structural Formula Illustration

The chemical formula is C32H53BrN2O4 with a molecular weight of 609.70. The partition coefficient of rocuronium bromide in n-octanol/water is 0.5 at 20°C.

ZEMURON is supplied as a sterile, nonpyrogenic, isotonic solution that is clear, colorless to yellow/orange, for intravenous injection only. Each mL contains 10 mg rocuronium bromide and 2 mg sodium acetate. The aqueous solution is adjusted to isotonicity with sodium chloride and to a pH of 4 with acetic acid and/or sodium hydroxide.

What are the possible side effects of rocuronium (Zemuron)?

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

Tell your caregivers right away if you have any of these serious side effects:

  • fast or uneven heart rate;
  • noisy breathing, feeling short of breath;
  • ongoing muscle weakness; or
  • inability to move your muscles.

Less serious side effects may include:

  • nausea, vomiting;
  • swelling or discomfort where the medicine was injected;
  • feeling sleepy or...

Read All Potential Side Effects and See Pictures of Zemuron »

Last reviewed on RxList: 10/31/2016
This monograph has been modified to include the generic and brand name in many instances.

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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