[Systemic sensitization to 17-beta estradiol induced by transcutaneous administration].
BACKGROUND
Transdermal administration of drugs to obtain a systemic effect may lead to allergic sensitization and compromise subsequent use via another administration route.


METHODS
A 52-year-old woman presented contact eczema with the transdermal therapeutic system Estraderm TTS50. Generalized eczema developed later after oral administration of an oestrogen derivative. Skin tests demonstrated allergic sensitization to 17 beta-oestradiol.


CONCLUSIONS
Contact eczema due to transdermal therapeutic systems are usually caused by agents other than the active drug. Sensitization to the active drug raises the risk of generalized eczema and subsequent systemic complications. This risk must be taken into account when prescribing substitution hormone therapy for menopause.
El Sayed
F
F
Service de Dermatologie, Vénéréologie et Allergologie, Hôpital Purpan, Toulouse.
Bayle-Lebey
P
P
Marguery
M C
MC
Bazex
J
J
D000279:Administration, Cutaneous; D017449:Dermatitis, Allergic Contact / Q000175:diagnosis / Q000209:etiology*; D004958:Estradiol / Q000008:administration & dosage / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008875:Middle Aged; D012882:Skin Tests
D004958:Estradiol
Sensibilisation systémique au 17 beta-oestradiol induite par la voie transcutanée.