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.

Healthy fats are essential—but doctors flag potential side effects to keep in mind if you're taking them in supplement form. Omega-3 fatty acids aren’t just a “nice-to-have” in your diet. These ...