Substance | effects |
Alcohol | Sleep induction and sleep duration |
B blockers | Alteration of sleep physiology, increase in nightmares |
Caffeine | Stimulant |
Corticosteroids | Stimulant, may cause agitation, vivid dreams |
Diuretics | Nocturia |
Theophylline | Stimulant |
Guarana | Stimulant |
Ephedrine | Stimulant |