Like any vaccine though, the flu shot can come with potential side effects—which are usually good signs that your immune system is creating the antibodies you need to fight influenza viruses ...

As with other drugs, Vyvanse (lisdexamfetamine) can cause side effects, such as headache or sleep problems. If you are unable to tolerate side effects of Vyvanse, talk with your doctor or pharmacist.

Biotin deficiency is very uncommon, but experiencing it can cause an array of side effects, including: hair thinning or loss, brittle nails, a red scaly rash (around the eyes, nose, and mouth), a ...