"Scientists at the National Institutes of Health report they have discovered in mouse studies that a small molecule released in the spinal cord triggers a process that is later experienced in the brain as the sensation of itch.
(butenafine HCl) Cream, 1%
Mentax® (butenafine) Cream, 1%, contains the synthetic antifungal agent, butenafine hydrochloride. Butenafine is a member of the class of antifungal compounds known as benzylamines which are structurally related to the allylamines.
Butenafine HCl is designated chemically as N-4-tert-butylbenzyl-N-methyl-1- naphthalenemethylamine hydrochloride. The compound has the empirical formula C23H27N•HCl, a molecular weight of 353.93, and the following structural formula:
Butenafine HCl is a white, odorless, crystalline powder. It is freely soluble in methanol, ethanol, and chloroform, and slightly soluble in water. Each gram of Mentax® Cream, 1%, contains 10 mg of butenafine HCl in a white cream base of purified water USP, propylene glycol dicaprylate, glycerin USP, cetyl alcohol NF, glyceryl monostearate SE, white petrolatum USP, stearic acid NF, polyoxyethylene (23) cetyl ether, benzyl alcohol NF, diethanolamine NF, and sodium benzoate NF.
What are the possible side effects of butenafine topical (Mentax)?
Serious side effects of butenafine topical use are not expected. Stop using butenafine topical and see your doctor if you experience unusual or severe blistering, itching, redness, peeling, dryness, swelling, 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 butenafine (Mentax)?
Before using this medication, tell your doctor or pharmacist if you are allergic to butenafine; or to allylamine antifungals (e.g., naftifine, terbinafine); or if you have any other allergies. This product may contain inactive ingredients, 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: athlete's foot on the bottom/side of the foot.
During pregnancy, this medication should be used only when clearly needed. 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: 4/3/2009
This monograph has been modified to include the generic and brand name in many instances.
Additional Mentax Information
Mentax - User Reviews
Mentax User Reviews
Now you can gain knowledge and insight about a drug treatment with Patient Discussions.
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.
Find out what women really need.