Analgesics

• acetaminophen
• acetanilide
• acetophenetidin
• acetylsalicylic acid or aspirin
• amidone
• aminopyrine
• antipyrine
• buffered aspirin
• carbamazepine
• codeine
• cyclazocine
• etorphine
• fentanyl
• heroin
• ibuprofen
• indomethacin
• levorphanol
• meperidine
• methadone
• morphine
• nalbuphine
• naproxen
• nonopioid
• nonsteroidal anti-inflammatory drug or NSAID
• opioid
• oxycodone
• oxyphenbutazone
• pentazocine
• pethidine
• phenacetin
• phencyclidine
• phenylbutazone
• propoxyphene
• pyrazolone
• salicylic acid
• sodium salicylate
• sulindac
• trichloroethylene