"The U.S. Food and Drug Administration today approved Differin Gel 0.1% (adapalene), a once-daily topical gel for the over-the-counter (OTC) treatment of acne. Differin Gel 0.1% is approved for use in people 12 years of age and older.
Duac Topical Gel
(clindamycin phosphate and benzoyl peroxide) Gel 1.2%/5%
DUAC (clindamycin phosphate and benzoyl peroxide) Gel, 1.2%/5% is a fixed combination product with two active ingredients in a white to slightly yellow, opaque, aqueous gel formulation.
Clindamycin phosphate is a water soluble ester of the semi-synthetic antibiotic produced by a 7(S)-chloro-substitution of the 7(R)-hydroxyl group of the parent antibiotic lincomycin.
Clindamycin phosphate is C18H34ClN2O8PS. The structural formula for clindamycin phosphate is represented below:
Clindamycin phosphate has a molecular weight of 504.97 and its chemical name is methyl 7-chloro-6,7,8-trideoxy-6-(1-methyl-trans-4-propyl-L-2-pyrrolidinecarboxamido)-1-thioL-threo-α-D-galacto-octopyranoside 2-(dihydrogen phosphate).
Benzoyl peroxide is C14H10O4. It has the following structural formula:
Benzoyl peroxide has a molecular weight of 242.23.
Each gram of DUAC Gel contains 10 mg (1%) clindamycin, as clindamycin phosphate, and 50 mg (5%) benzoyl peroxide in a base consisting of carbomer homopolymer (type C), dimethicone, disodium lauryl sulfosuccinate, edetate disodium, glycerin, methylparaben, poloxamer 182, purified water, silicon dioxide, and sodium hydroxide.
What are the possible side effects of benzoyl peroxide and clindamycin topical?
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.
Stop using this medicine and call your doctor at once if you have any of these serious side effects:
- severe redness, burning, stinging, or peeling of treated skin areas; or
- diarrhea that is watery or bloody.
Less serious side effects may include:
- mild burning or stinging;
- itching or tingly feeling;
- dryness or peeling of treated skin;...
What are the precautions when taking clindamycin benzoyl peroxide (Duac Topical Gel)?
Before using this medication, tell your doctor or pharmacist if you are allergic to benzoyl peroxide; or to clindamycin; or to lincomycin; 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.
This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: intestinal disorders (e.g., regional enteritis, ulcerative colitis, antibiotic-associated colitis, Clostridium difficile-associated diarrhea).
This medication may make you more sensitive to the sun. Avoid prolonged sun exposure, tanning booths, and sunlamps. Use a sunscreen and wear protective clothing when...
Last reviewed on RxList: 1/21/2014
This monograph has been modified to include the generic and brand name in many instances.
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