Avar Ls

Avar Ls

Avar Ls Recall

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Questions & Answers

Side Effects & Adverse Reactions

Sulfonamides are known to cause Stevens-Johnson syndrome in hypersensitive individuals. Stevens-Johnson syndrome also has been reported following the use of sodium sulfacetamide topically. Cases of drug-induced systemic lupus erythematosus from topical sulfacetamide also have been reported. In one of these cases, there was a fatal outcome. KEEP OUT OF THE REACH OF CHILDREN.

Legal Issues

There is currently no legal information available for this drug.

FDA Safety Alerts

There are currently no FDA safety alerts available for this drug.

Manufacturer Warnings

There is currently no manufacturer warning information available for this drug.

FDA Labeling Changes

There are currently no FDA labeling changes available for this drug.


This product is indicated for use in the topical control of acne vulgaris, acne rosacea and seborrheic dermatitis.


There is currently no drug history available for this drug.

Other Information

Each gram contains 100 mg of sodium sulfacetamide and 20 mg of colloidal sulfur in a vehicle consisting of: benzyl alcohol, cetyl alcohol, fragrance, glyceryl stearate (and) PEG-100 stearate, magnesium aluminum silicate, phenoxyethanol, propylene glycol, purified water, sodium lauryl sulfate, sodium magnesium silicate, sodium thiosulfate, stearyl alcohol, and xanthan gum. This product also contains tetrafluoroethane (propellant). Sodium sulfacetamide is a sulfonamide with antibacterial activity while sulfur acts as a keratolytic agent. Sodium sulfacetamide is C 8H 9N 2NaO 3S·H 2O with molecular weight of 254.24. Chemically, sodium sulfacetamide is N-[(4-aminophenyl) sulfonyl]-acetamide, monosodium salt, monohydrate. The structural formula is:


Sodium sulfacetamide is an odorless, white,crystalline powder with a bitter taste. It is freely soluble in water, sparingly soluble in alcohol, while practically insoluble in benzene, in chloroform and in ether.

Avar Ls Manufacturers

  • Mission Pharmacal Company
    Avar Ls (Sodium Sulfacetamide, Sulfur) Aerosol, Foam [Mission Pharmacal Company]
  • Mission Pharmacal Company
    Avar Ls (Sulfacetamide Sodium, Sulfur) Emulsion [Mission Pharmacal Company]

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