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Clinical Studies Experience
Because clinical trials are conducted under prescribed conditions, adverse reaction rates observed in the clinical trial may not reflect the rates observed in practice. Because clinical trials are also conducted under widely varying conditions, adverse reactions observed in the clinical trials of a drug cannot always be directly compared to rates in the clinical trials of another drug. The adverse reaction information from clinical trials does, however, provide a basis for identifying the adverse reactions that appear to be related to drug use and for approximating rates.
The following selected adverse reactions occurred in less than 0.2% of patients treated with ACANYA Gel (clindamycin phosphate 1.2% and benzoyl peroxide 2.5%) : application site pain (0.1%); application site exfoliation (0.1%); and application site irritation (0.1%).
During clinical trials, patients were assessed for local cutaneous signs and symptoms of erythema, scaling, itching, burning and stinging. Most local skin reactions increased and peaked around week 4 and continually decreased over time reaching near baseline levels by week 12. The percentage of patients that had symptoms present before treatment, the maximum value recorded during treatment, and the percent with symptoms present at week 12 are shown in Table 1.
Table 1: Local Skin Reactions - Percent of Patients with
Symptoms Present. Combined Results from the Two Phase 3 Trials (N = 773)
|Before Treatment (Baseline)||Maximum During Treatment||End of Treatment (Week12)|
|Burning||3||< 1||0||8||2||0||2||< 1||0|
|Stinging||2||< 1||0||6||1||0||1||< 1||0|
|*Mod. = Moderate|
Anaphylaxis, as well as allergic reactions leading to hospitalizations, has been reported in postmarketing use of products containing clindamycin/benzoyl peroxide.
Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
Read the Acanya Gel (clindamycin phosphate 1.2% and benzoyl peroxide 2.5%) Side Effects Center for a complete guide to possible side effects
ACANYA Gel (clindamycin phosphate 1.2% and benzoyl peroxide 2.5%) should not be used in combination with topical or oral erythromycin-containing products due to its clindamycin component. In vitro studies have shown antagonism between erythromycin and clindamycin. The clinical significance of this in vitro antagonism is not known.
Concomitant Topical Medications
Concomitant topical acne therapy should be used with caution because a possible cumulative irritancy effect may occur, especially with the use of peeling, desquamating, or abrasive agents.
Neuromuscular Blocking Agents
Clindamycin has been shown to have neuromuscular blocking properties that may enhance the action of other neuromuscular blocking agents. Therefore, ACANYA Gel should be used with caution in patients receiving such agents.
Last reviewed on RxList: 7/20/2010
This monograph has been modified to include the generic and brand name in many instances.
Additional Acanya Gel Information
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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