As someone who works in the industry, this shouldn't be much of a surprise. Most drugs have a very low incidence of serious side effects. Even over the counter products do. The reason they are approved is that they are so rare.
A great example of a serious side effect is Toxic epidermal necrolysis (TEN) and Stevens–Johnson syndrome (SJS). There are many everyday drugs (ibuprofen, antibiotics, etc) that can cause this rare disorder. Your skin basically sloughs off and you end in a burn ward. Super rare, but they happen.
A great example of a serious side effect is Toxic epidermal necrolysis (TEN) and Stevens–Johnson syndrome (SJS). There are many everyday drugs (ibuprofen, antibiotics, etc) that can cause this rare disorder. Your skin basically sloughs off and you end in a burn ward. Super rare, but they happen.