Meth labs can be very potent and dangerous. These include nail polish remover, fertilizer, lithium, battery acid, and pseudoephedrine. Illicit meth is cooked in labs, often with inexpensive ingredients that can be easily found in drugstores or big box stores. The prescription treats obesity and attention-deficit/hyperactivity disorder and can’t be refilled. Methamphetamine is a Schedule II stimulant, which means that it does have medical use but is very addictive. Identifying meth may be important to those who are abusing drugs, or loved ones of addicted individuals, as meth is a highly addictive, dangerous drug of abuse and meth labs can be highly hazardous. Methamphetamine (meth) comes in many forms, each which may have a different look and smell.