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warnings and cautions
5 WARNINGS AND PRECAUTIONS • Colitis: Clindamycin can cause severe colitis, which may result in death. Diarrhea, bloody diarrhea, and colitis (including pseudomembranous colitis) have been reported with the use of clindamycin. Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/3.75% should be discontinued if significant diarrhea occurs. ( 5.1 ) • Ultraviolet Light and Environmental Exposure: Minimize sun exposure following drug application. ( 5.2 ) 5.1 Colitis Systemic absorption of clindamycin has been demonstrated following topical use of clindamycin. Diarrhea, bloody diarrhea, and colitis (including pseudomembranous colitis) have been reported with the use of topical and systemic clindamycin. If significant diarrhea occurs, Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/3.75% should be discontinued. Severe colitis has occurred following oral and parenteral administration of clindamycin with an onset of up to several weeks following cessation of therapy. Antiperistaltic agents such as opiates and diphenoxylate with atropine may prolong and/or worsen severe colitis. Severe colitis may result in death. Studies indicate toxin(s) produced by Clostridia is one primary cause of antibiotic-associated colitis. The colitis is usually characterized by severe persistent diarrhea and severe abdominal cramps and may be associated with the passage of blood and mucus. Stool cultures for Clostridium difficile and stool assay for C. difficile toxin may be helpful diagnostically. 5.2 Ultraviolet Light and Environmental Exposure Minimize sun exposure (including use of tanning beds or sun lamps) following drug application. 5.3 Concomitant Topical Medications Concomitant topical acne therapy should be used with caution since a possible cumulative irritancy effect may occur, especially with the use of peeling, desquamating, or abrasive agents. If irritancy or dermatitis occurs, reduce frequency of application or temporarily interrupt treatment and resume once the irritation subsides. Treatment should be discontinued if the irritation persists.
6 ADVERSE REACTIONS The following adverse reaction is described in more detail in the Warnings and Precautions section of the label: • Colitis [See Warnings and Precautions (5.1) ] . • The most common adverse reactions are: burning sensation (0.4%); contact dermatitis (0.4%); pruritus (0.4%); and rash (0.4%). ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Padagis ® at 1-866-634-9120 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in clinical trials of a drug cannot be directly compared to rates observed in clinical trials of another drug and may not reflect the rates observed in clinical practice. These adverse reactions occurred in less than 0.5% of subjects treated with clindamycin phosphate and benzoyl peroxide gel, 1.2%/3.75%: burning sensation (0.4%); contact dermatitis (0.4%); pruritus (0.4%); and rash (0.4%). During the clinical trial, subjects were assessed for local cutaneous signs and symptoms of erythema, scaling, itching, burning and stinging. Most local skin reactions either were the same as baseline or increased and peaked around Week 4 and were near or improved from baseline levels by Week 12. The percentage of subjects that had symptoms present before treatment (at baseline), during treatment, and the percent with symptoms present at Week 12 are shown in Table 1. Table 1: Percent of Subjects with Local Skin Reactions. Results from the Phase 3 Trial (N = 243) Before Treatment (Baseline) During Treatment End of Treatment (Week 12) Mild Mod.* Severe Mild Mod.* Severe Mild Mod.* Severe Erythema 20 6 0 28 5 <1 15 2 0 Scaling 10 1 0 19 3 0 10 <1 0 Itching 14 3 <1 15 3 0 7 2 0 Burning 5 <1 <1 7 1 <1 3 <1 0 Stinging 5 <1 0 7 0 <1 3 0 <1 *Mod. = Moderate 6.2 Postmarketing Experience Because postmarketing adverse 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. Anaphylaxis, as well as allergic reactions leading to hospitalizations, has been reported in postmarketing use of products containing clindamycin phosphate/benzoyl peroxide.