Chorea
Some forms of chorea are not linked to neurological conditions, though. Chorea can develop as a complication of pregnancy.  It can be a sign of hyperthyroidism. It can also be caused by drugs taken in the wrong dose. For example, L-Dopa (taken against Parkinson's disease), certain forms of birth control, or certain antipsychotics can cause chorea if they are used in the wrong doses.