Involuntary movements in patients taking oral contraceptivesBr Med J 1969; 4 doi: https://doi.org/10.1136/bmj.4.5680.404 (Published 15 November 1969) Cite this as: Br Med J 1969;4:404
- P. D. Lewis,
- M. J. G. Harrison
Involuntary movements developed in five women taking oral contraceptives. In one, the sudden onset of a unilateral disturbance suggested a cerebral thrombosis; this case is considered to be a further example of the increased risk of cerebrovascular disease associated with oral contraception. The four other patients suffered a relapse of Sydenham's chorea between one and four months after starting an oral contraceptive regimen. Possibly an underlying vascular mechanism was responsible for these relapses.