Is there any way to force a family member into drug rehab in the state of Maryland?

I know that in Florida they have something called the Marchman Act and I was wondering if there is anything like that in Maryland. I have a VERY CLOSE family member who has gotten hooked on Crack cocaine and I am terrified for her and my whole family. She knows that she needs to go to rehab, but keeps stalling. Some of her excuses were valid, but those cirstances have long ped and there always seems to be a new excuse to delay her from getting help. I am losing my mind! I stress about this from the time I wake up until the time I go to bed. Her drug problem is tormenting me and the rest of my family! Is'nt there any way that a family member can have someone forced into treatment or at least evaluated? I know it can be done if someone is suicidal or homicidal, but what about for severe drug addiction?