1. Sleep inducing
   - soporific, soporiferous, somniferous, hypnogogic, hypnagogic

See also: depressant

• Phenaphen
• phenazopyridine
• phencyclidine
• phencyclidine hydrochloride
• phenelzine
• Phenergan
• Phenicia
• pheniramine
• pheno-safranine
• phenobarbital
• phenobarbitone
• phenocryst
• phenol
• phenolic
• phenolic plastic
• phenolic resin
• phenolic urea
• phenology
• phenolphthalein
• phenom
• phenomenal
• phenomenalism
• phenomenally
• phenomenology
• phenomenon