Rehabilitation for persons who use drugs in the Philippines is pre-mised on a multidisciplinary team approach to treatment, where delivery of services is collaboratively undertaken by physicians and rehabilitation practitioners. In 2013, a government-academe-civil society collaborative developed a customized training program for nurses, psychologists, social workers and other personnel involved in rehabilitation work. This 10-day accreditation course covered mod-ules on understanding drug dependence, assessment, management of drug abuse and dependence, and drug rehabilitation work. Participants also had the opportunity to handle cases through a practicum. Between 2013 and 2016, eight training sessions were implemented for 252 rehabilitation practitioners from almost all of the Philippines’ administrative regions. A paired-samples t-test showed that there was a signiﬁcant diﬀerence in the pre-test (24.58± 4.08) and post-test scores (30.37 ± 4.66) of participants to the training, t(152) = 16.5949, p = <0.0001.