If someone was addicted to more than one drug(ie alcohol and cocaine)would the medical treatment to ween them?

off be radically different than that for just an alcoholic or a heroin addict for example?

: http://alcoholdrugstreatment.info/if-someone-was-addicted-to-more-than-one-drugie-alcohol-and-cocainewould-the-medical-treatment-to-ween-them