[On analgesics, hypnotics, and CNS stimulants].
D000368:Aged; D000700:Analgesics / Q000494:pharmacology*; D000697:Central Nervous System Stimulants / Q000494:pharmacology*; D006801:Humans; D006993:Hypnotics and Sedatives / Q000494:pharmacology*
D000700:Analgesics; D000697:Central Nervous System Stimulants; D006993:Hypnotics and Sedatives