October 20, 2016
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Bactroban Ointment

"Some cryogenic wart removers—which remove warts from the skin by freezing them off—have caught fire during use at home, harming consumers or setting fire to items around the house.

Since 2009, the Food and Drug Administratio"...


Bactroban Ointment

(mupirocin calcium) Nasal Ointment


BACTROBAN (mupirocin calcium) nasal ointment, 2% contains the dihydrate crystalline calcium hemi-salt of the antibacterial drug, 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)2 Ca•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:

BACTROBAN (mupirocin calcium) Structural Formula Illustration

BACTROBAN nasal ointment is a white to off white ointment that contains 2.15% w/w mupirocin calcium (equivalent to 2% mupirocin free acid) in a soft white ointment base. The inactive ingredients are paraffin and a mixture of glycerin esters (SOFTISAN® 649).

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...

Read All Potential Side Effects and See Pictures of Bactroban Ointment »

What are the precautions when taking mupirocin (Bactroban Ointment)?

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...

Read All Potential Precautions of Bactroban Ointment »

Last reviewed on RxList: 9/2/2016
This monograph has been modified to include the generic and brand name in many instances.

Bactroban Ointment - User Reviews

Bactroban Ointment User Reviews

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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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