From WebMD: A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
I’ve never experienced any side effects, in around 40 years of using them. But you do have to remember to take them before eating the dairy. Even taking them 15 minutes after an ice-cream cone
decreases their effect.
