Clindamycin Phosphate and Benzoyl Peroxide

CLINDAMYCIN PHOSPHATE AND BENZOYL PEROXIDE- clindamycin phosphate and benzoyl peroxide gel
Padagis Israel Pharmaceuticals Ltd

1 INDICATIONS AND USAGE

1.1 Indication

Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/5% is indicated for the topical treatment of inflammatory acne vulgaris in patients 12 years and older.

1.2 Limitations of Use

Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/5% has not been demonstrated to have any additional benefit when compared with benzoyl peroxide alone in the same vehicle when used for the treatment of non-inflammatory acne.

2 DOSAGE AND ADMINISTRATION

Apply a thin layer of Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/5% to the face once daily, in the evening or as directed by the physician. The skin should be gently washed, rinsed with warm water, and patted dry before applying Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/5%. Avoid the eyes, mouth, lips, mucous membranes, or areas of broken skin.

Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/5% is not for oral, ophthalmic, or intravaginal use.

3 DOSAGE FORMS AND STRENGTHS

Gel, 1.2%/5%

Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/5% is a white, opaque gel. Each gram of Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/5% contains 12 mg clindamycin phosphate (equivalent to 10 mg of clindamycin) and 50 mg benzoyl peroxide.

4 CONTRAINDICATIONS

4.1 Hypersensitivity

Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/5% is contraindicated in those individuals who have shown hypersensitivity to clindamycin, benzoyl peroxide, any components of the formulation, or lincomycin. Anaphylaxis, as well as allergic reactions leading to hospitalization, has been reported in postmarketing use with clindamycin phosphate and benzoyl peroxide gel, 1.2%/5% [see Adverse Reactions (6.2) ].

4.2 Colitis/Enteritis

Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/5% is contraindicated in those individuals with a history of regional enteritis, ulcerative colitis, pseudomembranous colitis, or antibiotic-associated colitis [see Warnings and Precautions (5.1) ].

5 WARNINGS AND PRECAUTIONS

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%/5% 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 a 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

Benzoyl peroxide, a component of Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/5%, may cause increased sensitivity to sunlight. Minimize sun exposure (including use of tanning beds or sun lamps) following drug application. [See Nonclinical Toxicology (13.1) ] Patients who may be required to have considerable sun exposure due to occupation and those with inherent sensitivity to the sun should exercise particular caution.

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) ].

6.1 Clinical Trials Experience

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared with rates in the clinical trials of another drug and may not reflect the rates observed in practice.

During clinical trials, 397 subjects used clindamycin phosphate and benzoyl peroxide gel, 1.2%/5% once daily for 11 weeks for the treatment of moderate to moderately severe facial acne vulgaris. All subjects were graded for facial local skin reactions (erythema, peeling, burning, and dryness) on the following scale: 0 = absent, 1 = mild, 2 = moderate, and 3 = severe. The percentage of subjects that had symptoms present before treatment (at baseline) and during treatment is presented in Table 1.

Table 1. Local Skin Reactions With Use Of Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/5% Combined Results From Five Trials (n=397)

% of Subjects Using Clindamycin Phosphate and Benzoyl Peroxide Gel, 1.2%/5% with Symptom Present

Before Treatment (Baseline)

During Treatment

Symptom

Mild

Moderate

Severe

Mild

Moderate

Severe

Erythema

28%

3%

0

26%

5%

0

Peeling

6%

<1%

0

17%

2%

0

Burning

3%

<1%

0

5%

<1%

0

Dryness

6%

<1%

0

15%

1%

0

(Percentages derived by number of subjects receiving clindamycin phosphate and benzoyl peroxide gel, 1.2%/5% with symptom score/number of enrolled subjects receiving clindamycin phosphate and benzoyl peroxide gel, 1.2%/5%).

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