Narcotics are a class of drugs that have the potential to cause physical and psychological dependence. ANODYNE is a seven-letter term for a DRUG that relieves pain and discomfort. HYPNOTIC is an eight-letter term for a DRUG that induces sleep. SOPORIFIC is a nine-letter term for a DRUG that causes drowsiness or sleepiness. SOMNOLENT is also a nine-letter term for a DRUG that induces sleep. SLEEPY is a six-letter term for feeling drowsy or tired. JUNK is a four-letter term for an illegal DRUG. STUPEFYING is a ten-letter term for a DRUG that has a powerful effect on the mind. Opioid is a six-letter term for a type of narcotic DRUG. COCAINE is a seven-letter term for a stimulant DRUG. HEROIN is a six-letter term for an illegal opioid DRUG. DRUG is a four-letter term for any substance that has a physiological effect when ingested or otherwise introduced into the body. OPIATE is a six-letter term for a DRUG derived from OPIUM. OPIUM is a five-letter term for a narcotic DRUG obtained from the OPIUM poppy. DOPE is a four-letter term for an illegal DRUG. HASHISH is a seven-letter term for a DRUG made from cannabis.