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.
Some women taking Plan B One-Step will have menstrual changes such as spotting or bleeding before their next period. For some women, their next period may be heavier or lighter, or they may have a period that is early or late. A pregnancy test should be given if a period is more than 1 week late.