Besides, I would like to add that as far as the harmful and nearly unavoidable muscle spasms (involuntary restless bodily / muscular movements such as rapid purposeless uncontrollable eye-blinking / eyelid-twitching, Hemifacial Spasms, Tardive Dyskinesia, Dystonia etc) and other neurological disorders arising from the harmful neuromuscular / neurological / neuro-degenerative side effects of certain medications are concerned, there have been in fact a great variety of other far better medications with greater curative effects and far lesser harmful side effects getting invented from time to time nowadays by the modern medical science in order to overcome this problem.
Nevertheless, the usual current practice of most medical practitioners nowadays are such that they would prefer to prescribe and dispense the inferior and outdated medications to their patients owing to the far lower costs of these medications, and hence the health cares of the patients are getting unfairly exploited and jeopardized in such a scenario.
For an instance, the medication called chlorpromazine is actually one of the examples of the longly outdated first-generation antipsychotic medications that has long been superseded by the other far better second and third-generation antipsychotics ever since decades ago. However, such inferior and outdated medications are still the commonly preferred choices for prescriptions and dispensing of most medical practitioners nowadays.
Examples of First-generation antipsychotics for treating schizophrenia :