Medicine & Life Sciences
Methadone
100%
Opioid Analgesics
87%
Buprenorphine
60%
Cocaine
45%
Hydromorphone
45%
Opioid-Related Disorders
40%
Pharmaceutical Preparations
33%
Opiate Alkaloids
31%
Substance-Related Disorders
30%
Psychology Reinforcement
30%
Naloxone
28%
Self Administration
28%
Volunteers
25%
Naltrexone
23%
Methadyl Acetate
21%
Drug Users
19%
Naloxone Drug Combination Buprenorphine
19%
Placebos
18%
Cannabis
17%
Heroin
16%
Therapeutics
15%
Urine
15%
Cocaine-Related Disorders
15%
Diazepam
13%
Butorphanol
13%
Dronabinol
13%
Motivation
13%
Carbon Monoxide
11%
Workplace
11%
Alcohols
11%
Urinalysis
11%
Alcoholics
10%
Injections
10%
Randomized Controlled Trials
10%
Ethanol
10%
Outpatients
10%
Morphine
10%
Alcoholism
10%
Pharmacokinetics
10%
Narcotic Antagonists
9%
Risk-Taking
9%
Pentazocine
9%
Tramadol
8%
Oxazepam
8%
Illicit Drugs
8%
Drinking
8%
Self Report
7%
Smoking
7%
Substance Withdrawal Syndrome
7%
Eating
6%
Social Sciences
reinforcement
14%
smoking
14%
alcoholism
11%
contingency
11%
drug
11%
self-administration
7%
alcohol
6%
substance abuse
5%
drug abuse
5%
relapse
5%