Dosing & Uses
Dosage Forms & Strengths
cream
- 20% (Azelex)
gel
- 15% (Finacea)
foam
- 15% (Finacea)
kit
- 15% (Finacea Plus)
Acne Vulgaris
Azelex: Massage a thin layer into the affected areas on the face q12hr
Treatment of Inflammatory Papules and Pustules of Mild to Moderate Rosacea
Finacea: Massage a thin layer into the affected areas on the face q12hr
Administration
Cleanse affected area with mild soap or soapless cleansing lotion and pat dry before applying
Reassess if no improvement after 12 weeks of therapy
Acne Vulgaris
<12 years
- Safety and efficacy not established
≥12 years
- Azelex: Massage a thin layer into the affected areas on the face q12hr
Administration
Cleanse affected area with mild soap or soapless cleansing lotion and pat dry before applying
Reassess if no improvement after 12 weeks of therapy
Adverse Effects
>10%
Burning/ stinging/ tingling (4-16%)
1-10%
Pruritus (1-6%)
Scaling/ dry skin/ xerosis (1-5%)
Erythema/ irritation (1-2%)
<1%
Contact dermatitis
Edema
Acne
Postmarketing Reports
Facial burning
Irritation
Iridocyclitis after accidental exposure
Hypersensitivity reactions including angioedema, eye swelling, facial swelling, urticaria (revised)
Worsening of asthma, dyspnea, wheezing
Warnings
Contraindications
Hypersensitivity to azelaic acid, propylene glycol or any of its components
Cautions
In case of known hypersensitivity to any component of the gel, avoid the use of gel dosage form; if hypersensitivity develops during treatment, discontinue and institute appropriate therapy
For dermatologic use only
Therapy has been reported to cause irritation of eyes; avoid contact with eyes and mucous membranes
Isolated cases of hypopigmentation reported after azelaic acid use; monitor patients with dark complexion for early signs of hypopigmentation
Skin irritation (i.e. pruritus, burning or stinging) may occur, usually during first few weeks of treatment; if sensitivity or severe irritation develops and persists, discontinue treatment and institute appropriate therapy
Do not wax treated area or apply topical products that may further irritate skin (eg, astringents, abrasive soaps and cleansers, exfoliants)
Avoid any foods and beverages that provoke erythema, flushing, and blushing (eg, alcoholic beverages, spicy food, hot drinks such as hot coffee and tea)
Report any abnormal changes in skin color to physician
Avoid use of occlusive dressings or wrappings
Wash hands after applying the cream
Worsening of asthma reported; consult a physician if asthma is exacerbated with therapy
Pregnancy & Lactation
Pregnancy
Azelaic acid is minimally absorbed systemically following topical route of administration; maternal use not expected to result in fetal exposure to drug
Animal data
- In animal reproduction studies, embryofetal toxicity was noted when azelaic acid was administered orally during period of organogenesis at doses 162, 19, and 65 times maximum recommended human dose (MRHD) in rats, rabbits, and monkeys, respectively; maternal toxicity was noted at these doses but no malformations were observed in these embryofetal developmental studies
Lactation
Azelaic acid is naturally present in human milk; when used as prescribed, azelaic acid is unlikely to be absorbed through skin in clinically relevant amounts to cause a change in azelaic acid concentration in milk or milk production; therefore, breastfeeding is not expected to result in exposure of infant to drug
The developmental and health benefits of breastfeeding should be considered along with mother’s clinical need for drug and any potential adverse effects on breastfed child from drug or from underlying maternal condition
Pregnancy Categories
A: Generally acceptable. Controlled studies in pregnant women show no evidence of fetal risk.
B: May be acceptable. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies done and showed no risk. C: Use with caution if benefits outweigh risks. Animal studies show risk and human studies not available or neither animal nor human studies done. D: Use in LIFE-THREATENING emergencies when no safer drug available. Positive evidence of human fetal risk. X: Do not use in pregnancy. Risks involved outweigh potential benefits. Safer alternatives exist. NA: Information not available.Pharmacology
Mechanism of Action
Azelaic acid is an antibacterial agent that inhibits the growth of susceptible organisms (principally Propionibacterium acnes) on the surface of the skin by inhibiting protein synthesis; may also inhibit follicular keratinization, which prevents development or maintenance of comedones
Mechanism by which it interferes with pathogenic events in rosacea is unknown
Pharmacokinetics
Half-Life: 12 hours
Absorption: systemic (4%)
Metabolism: Negligible cutaneous metabolism
Excretion: Unchanged in urine
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Formulary
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