Allergic

Conjunctivitis

BY

G.

ELMAR

LUTZ,

Due

to Diazepam

M.D.

The author reports onfourpatients. all women, who developed conjunctival hypersensitivity during diazepam treatment. This hypersensitivity is self-limited after diazepam treatment is discontinued. The author suggests that conjunctival hypersensitivity could be mistakenly attributed to contact lens irritation rather than to diazepam.

HYPERSENSITIVITY

to

REACTIONS

benzodiazcpines

are

virtually unknown ( I ). This fact, in addition to their dinical effectiveness and their extreme safety (successful suicidcs with bcnzodiazepines are rare), may account for the widespread use of benzodiazcpines, especially diazcpam (Valium). It has been my experience that there is a hypersensitivity

reaction

fairly

specific

for

diazepam.

During

the past three years, four women (aged 23, 38, 47, and 52) with allergic conjunctivitis came to my attention during the course of psychiatric treatment. All reported marked conjunctival burning, smarting, and foreign body sensations within 1/2 hour after intake of 5 to 10 mg of diazepam. In addition, three of these women reported associated light sensitivity. Interestingly, there were no complaints of itching. Examination revealed marked conjunctival injection. The discomfort seemed to have a peak duration of 4 hours, subsiding gradually within 24 to 48 hours following a single 5- or 10-mg oral test dose of diazepam and coinciding approximately with the plasma

half-time

(21

of elimination

pam and its primary metabolites, thyldiazepam (2). (Diazepam and

to 37 hours) oxazepam and its metabolites

Dr. Lutz is Senior

548

Attending Hospital, Passaic, Rd., Wayne, N.J.

AmJ

Psychiatry

Psychiatrist, N.J. Address 07470.

132:5.

May

can

women til

be annoying

ingested

the

who

wore

nosed

as

socially

having

social

was

lenses

diazepam,

embarrassing-all

before

relationship

contact to

and

diazepam

causative

sensitivity

might

conjunctival

four

engagements

recognized.

developed he

contact lens. This specific hypersensitivity pam treatment is discontinued. can be alleviated by the use chloride (Visine) eycdrops.

desmecan be

Department of Psychiatry, reprint requests to him

1975

tion

conjunctival be

irritation

un-

If a person

hyper-

erroneously

diag-

caused

is self-limited The subjective of tetrahydrozolinc

by

the

after diazediscomfort hydro-

of diaze-

detected in the human body up to 7 days following a single dose.) All four patients using 5 to 10 mg of diazepam one to three times daily had continuous conjunctivitis during

St. Mary’s 896 Valley

diazepam treatment before the connection with diazepam was discovered. I eliminated other possible causes, ineluding sensitivity to eye make-up and cigarette smoke. Repeated single-dose provocation in each instance led to a predictable recurrence of conjunctival vascular engorgement. One woman had an existing allergic diathesis to grass and to tree pollen; she was also hypersensitive to penicillin. None of the women displayed associated skin or systemic allergic effects. Because of my limited experience, I cannot hypothesize about possible cross-sensitivity to other benzodiazcpines. Clorazepate dipotassium (Tranxene) in one woman did not cause any conjunctival irritation. It is possiblc that conjunctival hypersensitivity is specific for diazepam; sensitization to diazepam seems to have occurred rapidly in all these patients. Although not previously reported, conjunctival hypersensitivity to diazepam may be quite common. This reac-

at

REFERENCES I. 2.

Bookman P: Personal communication, Nov 7, 1974 Kaplan SA, Jack LM, Alexander K, et al: Pharmacokinetic of diazepam in man following single intravenous and chronic oral administrations. J Pharm Sci 62:1789-1796,

profile oral and 1973

Allergic conjunctivitis due to diazepam.

The author reports on four patients, all women, who developed conjunctival hypersensitivity during diazepam treatment. This hypersensitivity is self-l...
137KB Sizes 0 Downloads 0 Views