Antihistamines facial dyskinesia

Barone DA, Raniolo J. Facial dyskinesia from overdose of an antihistamine. N Engl J Med 1980 303(2) 107. 

Thach BT, Chase TN, Bosma JF (1975) Oral facial dyskinesia associated with prolonged use of antihistaminic decongestant. N Engl J Med 293 486-490 Van Hecke E (1975) Ethylenediamine sensitivity from exposure to epoxy resin hardeners and mycolog cream. Contact Dermatitis 1 344-348 Vickers CFH (1961) Dermatitis medicamentosa. Br Med J 1 1366-1368... 

In 1973 Worz described a case of a 60-year-old woman in whom oral dyskinesia developed after prolonged use of a non-phenothiazine antihistamine mehydro-lin(25 ). Thach et al. 9 ) described 2 cases of oral facial dyskinesia associated with prolonged use of antihistamine decongestants, which must be briefly discussed here, since the drugs involved are very widely used, often for trivial indications. 

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