Question: what are the side effects of natural calm?
Answer: Nervous system. Common (1% to 10%): Sedation/somnolence/sleepiness, drowsiness, unsteadiness, dizziness, headache, attention disturbance. ... 
Gastrointestinal. ... 
Other. ... 
Psychiatric. ... 
Cardiovascular. ... 
Hematologic. ... 
Hypersensitivity.