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terbinafine topical (Lamisil AT topical)

 

Classes: Antifungals, Topical

Dosing and uses of Lamisil AT topical (terbinafine topical)

 

Adult dosage forms and strengths

cream/topical solution

  • 1%

 

Tinea Pedis

Apply to affected area BID until significant clinical improvement (no more than 4 weeks)

 

Tinea Corporis & Cruris

Apply qDay x1 week (no more than 4 weeks)

 

Pediatric dosage forms and strengths

Not FDA approved for peds

 

Lamisil AT topical (terbinafine topical) adverse (side) effects

1-10%

Burning

Contact dermatitis

Dryness

Exfoliation

Irritation

Pruritus

Rash

Irritation

Stinging

 

Warnings

Contraindications

Hypersensitivity

Not for oral, intravaginal, ophthalmic use

 

Pregnancy and lactation

Pregnancy category: B

Lactation: not safe for nursing infants

 

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 of Lamisil AT topical (terbinafine topical)

Metabolism: liver

Excretion: urine

 

Mechanism of action

Inhibits squalene epoxidase, reducing cell membrane ergosterol synthesis