9. Lobelia
Used to: Aid smoking cessation and improve respiratory issues
Possible dangers: Vomiting, nausea, tremors, diarrhea, confusion, rapid heartbeat, hypothermia, seizures, coma, and possibly death
10. Methylsynephrine
Used to: Facilitate weight loss, improve athletic performance and increase energy
Possible dangers: Cardiac arrest as well as heart rate and rhythm abnormalities