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(mupirocin calcium) Cream
BACTROBAN (mupirocin calcium) cream, 2% contains the dihydrate crystalline calcium hemi-salt of the RNA synthetase inhibitor antibacterial, mupirocin. Chemically, it is (αE,2S,3R,4R,5S)-5-[(2S,3S,4S,5S)-2,3-epoxy-5-hydroxy-4-methylhexyl]tetrahydro-3,4-dihydroxy-β-methyl-2H-pyran-2-crotonic acid, ester with 9-hydroxynonanoic acid, calcium salt (2:1), dihydrate.
The molecular formula of mupirocin calcium is (C26H43O9)2Ca•2H2O, and the molecular weight is 1075.3. The molecular weight of mupirocin free acid is 500.6. The structural formula of mupirocin calcium is:
Figure 1: Structure of Mupirocin Calcium
BACTROBAN cream is a white cream that contains 2.15% w/w mupirocin calcium (equivalent to 2% mupirocin free acid) in an oil- and water-based emulsion. The inactive ingredients are benzyl alcohol, cetomacrogol 1000, cetyl alcohol, mineral oil, phenoxyethanol, purified water, stearyl alcohol, and xanthan gum.
What are the possible side effects of mupirocin topical (Bactroban)?
Serious side effects are not expected to occur with mupirocin topical therapy. Stop using mupirocin topical and see your doctor if you experience unusual blistering, itching, redness, peeling, dryness, or irritation of the skin.
Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome. You may report side effects to FDA at...
What are the precautions when taking mupirocin calcium cream (Bactroban Cream)?
Before using mupirocin, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients (such as polyethylene glycol found in some brands), which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease (if you are using a brand of mupirocin that contains polyethylene glycol).
This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor.
It is not known whether this drug passes into breast milk. Consult your doctor before...
Last reviewed on RxList: 2/11/2016
This monograph has been modified to include the generic and brand name in many instances.
Additional Bactroban Cream Information
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