Help Someone Else
If someone you care about has asked for help, he or she has taken an important first step. If that person is resistant to help, see if you can at least convince him or her to get an evaluation from a doctor.
You can always take steps to locate an appropriate physician or health professional, and leave the information with your friend. You can call health professionals in advance to see if they are comfortable speaking with their patients about addiction. If not, ask for a referral to another doctor with more expertise in the area of addiction.