Improvements in and connected with gelatine coated capsules

摘要

Gelatine capsules which have been rendered insoluble in gastric juice by hardening with formaldehyde are treated to prevent undue continuation of the hardening effect by immersion in a water solution of sodium thiosulphate of above about 10 per cent concentration.ALSO:Gelatine capsules which have been rendered insoluble in gastric juice by hardening with formaldehyde are treated to prevent undue continuation of the hardening effect by immersion in a water solution of sodium thiosulphate of above about 10 per cent concentration.