Dermatitis to captopril.
BACKGROUND
reports on delated cutaneous reactions to captopril have been seldom reported. Captopril is an angiotensin-converting enzyme (ACE) inhibitor and their cutaneous side-effects are documented, but little has been published concerning the usefulness of patch test when they occur. We presented the case of a patient who developed a cutaneous reaction induced by captopril with positive patch test.


RESULTS
patch testing was performed with captopril, other ACE (enalapril, lisinopril ramipril), and European standard series. Following, we performed a double-blind oral challenge test with drugs who results was negative. Positive reaction were obtained to captopril at 4 days and the others test being negative. The same test were negative in five control patients. The patient tolerated enalapril, and lisinopril without problems.


CONCLUSIONS
the allergological studies confirmed sensitisation to captopril and tolerance to lisinopril, and enalapril. When patch test are performed with several drugs of the same family, results seem to indicate an absence of cross-sensitivity, but in several patients, oral provocation test were needed because patch test gave no conclusive information.
Martínez
J C
JC
Department of Allergy, Hospital Río Hortega. Valladolid, Spain.
Fuentes
M J
MJ
Armentia
A
A
Vega
J M
JM
Fernández
A
A
D000368:Aged; D000806:Angiotensin-Converting Enzyme Inhibitors / Q000009:adverse effects* / Q000627:therapeutic use; D002216:Captopril / Q000009:adverse effects* / Q000627:therapeutic use; D004311:Double-Blind Method; D003875:Drug Eruptions / Q000209:etiology*; D004656:Enalapril; D006801:Humans; D006973:Hypertension / Q000188:drug therapy; D017706:Lisinopril; D008297:Male
D000806:Angiotensin-Converting Enzyme Inhibitors; D004656:Enalapril; D002216:Captopril; D017706:Lisinopril