Ativan, a prescription drug used to treat anxiety has one side effect that could, well, cause anxiety. Nothing makes you panic more than not being able to inhale some refreshing, life saving, oxygen. However, Ativan has a side effect “Periods of Not Breathing.”
This side effect isn’t very noticeable though, so no need to panic that you’re going to stop breathing and notice. Most don’t actually notice, it’s kinda like when your heart skips a beat, you never really know. But, this is still a severe side effect and if periods of not breathing occur more often, as in, if you’re starting to notice it more, you should see your doctor.