Even though most people tolerate this drug well, there are risks with Zantac. It is important to talk to your healthcare provider before taking this medication if you have liver or kidney problems, as the liver and kidneys help clear Zantac from the body.
A number of side effects have been reported with Zantac, including upset stomach,
diarrhea,
headache, vomiting, and rash. While most side effects do not present a risk and either do not require treatment or can be treated easily, you should seek medical attention immediately if you experience upper-right abdominal pain, difficulty breathing, or angioedema (life-threatening swelling of the throat and mouth).
