Sulfonamides are known to cause Stevens-Johnson syndrome in hypersensitive individuals. Stevens-Johnson syndrome also has been reported following the use of sulfacetamide sodium 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.
Seb-Prev™ Gel is intended for topical application in the following scaling dermatoses: seborrheic dermatitis and seborrhea sicca (dandruff). It also is indicated for the treatment of secondary bacterial infections of the skin due to organisms susceptible to sulfonamides.
Each gram of Seb-Prev™ Gel contains 100 mg of Sulfacetamide Sodium USP in a vehicle consisting of edetate disodium, glycerin, methylparaben, propylene glycol, purified water, sodium thiosulfate, and xanthan gum.
Sulfacetamide sodium is C8H9N2NaO3S•H2O with a molecular weight of 254.24. Chemically, it is Acetamide N-[(4-aminophenyl)sulfonyl]-, monosodium salt, monohydrate, with the following structural formula:
Sulfacetamide sodium 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.
Seborrheic dermatitis including seborrhea sicca: Apply to affected areas twice daily (morning and evening), or as directed by your physician. Avoid contact with eyes or mucous membranes. Repeat application as described for eight to ten days.
As the condition subsides, the interval between applications may be lengthened. Applications once or twice weekly or every other week may prevent recurrence. Should the condition recur after stopping therapy, the application of Seb-Prev™ Gel should be reinitiated as at the beginning of treatment.
Secondary cutaneous bacterial infections: Apply to affected areas twice daily for eight to ten days.
Seborrheic dermatitis including seborrhea sicca: Apply to affected areas twice daily (morning and evening), or as directed by your physician. Avoid contact with eyes or mucous membranes. Repeat application as described for eight to ten days. As the condition subsides, the interval between applications may be lengthened. Applications once or twice weekly or every other week may prevent recurrence. Should the condition recur after stopping therapy, the application of Seb-Prev™ Cream should be reinitiated as at the beginning of treatment.
Secondary cutaneous bacterial infections: Apply to affected areas twice daily for eight to ten days.