THESE ARE some warning signs of possible prescription drug abuse by teenagers: 

Missing medications

Sudden changes in friends

A sudden change in attitude or personality

Poor school performance

No longer participating in activities that were once enjoyed

A sudden change in appearance or sleeping habits

An unexplained need for money

Theft, often from home or family members

A sudden increased need for secrecy 

Sources: www.soberliving.com and www.theantidrug.comn