Antihistaminics and barbiturates.
D018926:Anti-Allergic Agents; D001463:Barbiturates / Q000494:pharmacology*; D006634:Histamine H1 Antagonists / Q000494:pharmacology*
D018926:Anti-Allergic Agents; D001463:Barbiturates; D006634:Histamine H1 Antagonists
ANTIHISTAMINICS/effects; BARBITURATES/effects