The teenage years can be a time of experimentation for young people, regardless of parenting skills and influence. As a parent you may worry about your child becoming dependent on illegal drugs, such as methamphetamines (speed and ice), ecstasy, heroin and cocaine. However, the more likely threat to your teenager's health is the use of legal drugs such as alcohol and tobacco. There is no way to guarantee your child will never take drugs, but you can reduce the possibility of them experiencing drug problems in a number of ways.