Although different types of drug addiction have different physical effects but symptoms of addiction are almost similar. Common sign & symptoms of drugs addiction are:
Changes in appetite or sleep patterns
Sudden weight loss or weight gain
Unusual smells on breath, body, or clothing
Drop in attendance and performance at school or work
Unexplained need for money or financial problems
Engaging in secretive or suspicious behaviours
Frequently getting into trouble (fights, accidents, illegal activities)
Unexplained change in personality or attitude
Sudden mood swings, irritability or angry outbursts
