An agent, or drug, that induces tranquility in an individual.

• 3-Phenyl-2-propenal
• 6-methoxybenzoxazolinone
• Alpha-pinene
• Asarone
• (±)-Borneol
• Calcium
• Cinnamon (Cinnamaldehyde)
• Harman
• Isoborneol
• Magnesium
• Medicarpin
• Nicotine
• Scoparone
• Trans-Isoasarone