"PS" stands for Psychotropic Substances which refer to hallucinogens, depressants, stimulants, tranquillizers, cough medicine and organic solvents, etc, and "33" stands for 33, Granville Road, Tsimshatsui, Kowloon which is the location of our headquarters.

The rapid increase in the number of psychotropic substance abusers attracted much public attention in the mid-80s. PS33 was for this reason established in March 1988, which became the first centre that provides non-residential detoxification and counselling services for psychotropic substance abusers. We have started to provide anti-drug programmes and workshops for schools in Kowloon West District since 2002. In 2010, PS33 was re-structured and divided into PS33 - Tsimshatsui Centre and PS33 - Shamshuipo Centre

Service Targets

• Psychotropic substance abusers and their family members.
• Potential psychotropic substance abusers.
• Social workers, teachers, parents, other interested parties and  the general public.