Eurax
Classes
Ectoparasiticides, Including Scabicides
Topical Scabicides
Administration
The cream and lotion are for topical use only to the skin.
Shake lotion well before use.
Do not apply in the eyes or mouth. Do not apply to raw, weeping, or inflamed skin until acute inflammation has subsided.
Application for scabies:
After taking a routine bath or shower, apply topically by massaging into the skin from the chin to the toes including folds and creases.
Ensure application under fingernails (they should be trimmed short), as scabies are likely to remain under nails. A toothbrush may be used to apply crotamiton under fingernails. If a toothbrush is used to apply, wrap it in paper and discard immediately after use. Accidental use of the same toothbrush in the mouth could cause poisoning.
A second application 24 hours later is recommended. NOTE: A 60 gram tube of cream or bottle of lotion will be sufficient for 2 applications for most patients.
Clothing and bed linen should be changed the next morning. Contaminated clothing and bed linen may be washed in the hot cycle of the washing machine or dry-cleaned.
A cleansing bath should be taken 48 hours after the last application.
Application for pruritus:
For pruritus, massage cream or lotion into affected areas until the medication is absorbed; repeat as needed.
Adverse Reactions
atopic dermatitis / Delayed / 0-1.0
skin irritation / Early / 0-1.0
pruritus / Rapid / 0-1.0
rash / Early / 0-1.0
Common Brand Names
Crotan, Eurax
Dea Class
Rx
Description
Topical scabicide and antipruritic agent.
Used for treatment of scabies and symptomatic treatment of pruritic skin.
Scabies treatment failure may occur; experts consider crotamiton an alternative to permethrin 5% cream, the preferred agent.
Dosage And Indications
Apply topically by massaging gently into affected area until medication is completely absorbed. Repeat if needed.
After routine bath, apply topically over the entire body from the chin to the toes. Repeat in 24 hours. Patient may take a cleansing bath 48 hours after second dose.
The use of crotamiton has been described clinically, with the same directions as for adults, in infants and children as young as age 2 months, but treatment has been reported inferior to permethrin. However, due to treatment failures, other agents appear to be preferred; crotamiton is considered an alternative agent. There are no safety and efficacy data available from the manufacturer.
Dosing Considerations
No dosage adjustments are needed.
Renal ImpairmentNo dosage adjustments are needed.
Drug Interactions
There are no drug interactions associated with Crotamiton products.
How Supplied
Crotamiton/Crotan/Eurax Topical Lotion: 10%
Eurax Topical Cream: 10%
Maximum Dosage
Per treatment course for scabies, 1 applications/day for 2 days, given 24 hours apart. For pruritis, usually 1 application/day, then as needed.
GeriatricPer treatment course for scabies, 1 applications/day for 2 days, given 24 hours apart. For pruritis, usually 1 application/day, then as needed.
AdolescentsSafety and efficacy have not been established. Off-label per treatment course for scabies†, 1 application/day for 2 days, each application given 24 hours apart.
ChildrenSafety and efficacy have not been established. Off-label per treatment course for scabies†, 1 application/day for 2 days, each application given 24 hours apart.
Infants>= 2 months: Safety and efficacy have not been established. Off-label per treatment course for scabies†, 1 application/day for 2 days, each application given 24 hours apart.
< 2 months: Safety and efficacy have not been established.
Safety and efficacy have not been established.
Mechanism Of Action
Crotamiton possess scabicidal and antipruritic properties. The mechanisms of these actions are not known, but the drug is toxic to the scabies mite; antipruritic effect may be due to counter-irritation mechanisms.
Pharmacokinetics
Crotamiton is administered topically to the skin. The pharmacokinetics and degree of systemic absorption of crotamiton after topical application have not been determined.
Pregnancy And Lactation
Crotamiton is classified in FDA pregnancy risk category C and should only be administered to a pregnant woman if clearly needed. Animal reproductive studies have not been conducted. It is unknown if crotamiton can cause fetal harm or adversely affect reproductive capacity. Crotamiton is generally not the preferred agent for scabies, but is considered an alternative agent. Permethrin cream (pregnancy risk category B) may be an appropriate scabicidal agent to consider if treatment is necessary (see Permethrin monograph).
Breast-feeding information is not available from the manufacturer at this time. Crotamiton is generally not the preferred agent for scabies, but is considered an alternative agent. Permethrin cream may be an appropriate scabicidal agent to consider if treatment is necessary. Consider the benefits of breast-feeding, the risk of potential infant drug exposure, and the risk of an untreated or inadequately treated condition. If a breast-feeding infant experiences an adverse effect related to a maternally ingested drug, healthcare providers are encouraged to report the adverse effect to the FDA.