A double blind study of pimozide versus chlordiazepoxide in anxiety neuroses.

Eighteen patients diagnosed as anxiety states were treated under double blind conditions for a four week trial period with pimozide and chlordiazepoxide after randomisation. No significant differences could be demonstrated between chlordiazepoxide and pimozide as far as therapeutic efficacy or toxicity were concerned. Pimozide administered in a single daily dose was as effective as chlordiazepoxide administered in divided daily doses for the relief of anxiety symptoms.