Dane we had 22 death from January 1st to January 13th from drugs like this in our state (RI). Scary? You betcha but worrying will not change anything nor help your AH. I too hate it and wish something could be done but it seems to be getting worse everywhere. I feel like all I can do is pray and talk with my RAS when he seems open to it.
I understand that scary feeling believe me but all the worrying does is hurt you. I've had to leave it in God's hands because I know I am powerless and have absolutely no control over what my son does. I hope your AH seeks recovery someday soon.
Hugs.