Teen parenting expert Rosalind Wiseman on confronting your teenager when you suspect he may be pushing or giving away his prescribed medication.

By Rosalind Wiseman

Q. I trust my 14-year-old to take his own ADHD medication, but I'm pretty sure there are pills missing from the bottle, which makes me worry that he's giving them away or selling them. What should I do?

A. Not surprisingly, teens with ADHD aren't great at planning long term or thinking things through. So yes, your son may be giving or selling pills to other kids. Ask your son directly whether pills are missing, then confirm his story by counting them. If the math is off, take charge of his medication for the next 30 days. After that, return the bottle but have him show it to you every couple of weeks so you can check the count.

Also, to keep your son on track, talk with his physician right away about replacing the missing pills. And ask the doctor, at the next visit, to explain to your son the consequences of misusing his prescription.

Originally published in the March 2008 issue of Family Circle magazine.