Is there non-religious, non-12 step drug treatment available?

I am hoping to get help for a family member dealing with depression and subsequent drug abuse. The help will only be received if it comes from a medical or psychological point of view. Can anyone help?
in response: while i take no issue with a spiritual perspective, i know the help will not be received by the family member if in a spiritually based program. hopefully at some point this person will be open to a higher power. at this point i just want to get them help in a way they can receive it.

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