Cetacaine
General Information
- Brand name of commonly available topical mucosal anesthetic
- Combination of 14% benzocaine, 2% tetracaine hydrochloride, and 2% butamben
- Slightly different from another readily available topical anesthetic, HurriCaine spray, which is 20% benzocaine
Administration
- Type: Topical anesthetic
- Dosage Forms: Spray, gel, solution
- Routes of Administration: Mucosal
- Common Trade Names: Cetacaine; Exactacain
Adult Dosing
Spray form
- Apply maximum 2 second spray
Gel form
- Apply a maximum of 1 inch of gel
Solution form
- Apply a maximum of 0.4cc
Pediatric Dosing
No pediatric dosing established
Special Populations
- Pregnancy Rating: Category C
- Lactation risk: Safety unknown
Renal Dosing
- Adult: N/A
- Pediatric: N/A
Hepatic Dosing
- Adult: N/A
- Pediatric: N/A
Contraindications
- Allergy to class/drug
- Cholinesterase deficincies
- Use caution in G6PD and Hgb-M patients
- Avoid using on significantly inflamed or macerated tissue
Pharmacology
- Half-life: Unknown
- Metabolism: Plasma cholinesterase, liver
- Excretion: Urine (minimal systemic absorption)
Mechanism of Action
- Ester anesthetic, inhibits Na ion channels and nerve impulse/conduction
Comments
See Also
References
Micromedex
US FDA benzocaine warning. http://www.fda.gov/Safety/MedWatch/SafetyInformation/SafetyAlertsforHumanMedicalProducts/ucm250264.htm
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