The use of pyrithioxine in a group of visually handicapped children. A preliminary report from the School for the Blind, Worcester.

A double-blind trial with pyrithioxine (Encephabol) was made witn 22 pairs of visually handicapped subjects who were equal in IQ scores and in chronological age. Although an improvement of abstraction ability was noticed, the over-all results were not in concurrence with the general tendency in relevant literature. A follow-up cross-over study is suggested.