According to the Ventolin package insert possible side effects of taking this drug include fast or irregular heartbeat, chest pain, shakiness, and nervousness. There is no documentation from the Ventolin, Proair, or Proventil package insert that any of these drugs cause any type of mood altering effect.
Each pill contains levonorgestrel, a synthetic version of the hormone progestin. Levonorgestrel has been used in birth control pills for over 35 years. Plan B One-Step contains a higher dose of levonorgestrel than that in regular birth control pills.
When used as directed, Plan B One-StepÂ®. helps prevent pregnancy when taken within 72 hours (3 days) after unprotected sex or birth control failure. The sooner it's taken, the better it works. Your birth control plan. isn't always perfect. So there's Plan B One-StepÂ®. emergency contraception. When used as directed, Plan B One-StepÂ®. helps prevent pregnancy after unprotected. sex or birth control failure.