Dosing & Uses
Dosage Forms & Strengths
Apply to affected area up to 3-4 times/day
Safety and efficacy not established
Frequency Not Defined
Pregnancy & Lactation
Pregnancy category: C
Lactation: Unknown if excreted in breast milk
Pregnant or breastfeeding patients should seek advice of health professional before using OTC drugs
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.
Mechanism of Action
Local anesthetic; stabilizes neuronal membranes and prevent generation/conduction of nerve impulses by reducing sodium permeability and increasing action potential threshold
Onset: 2-5 min