shingrix is a vaccine used to prevent shingles in adults 50 years and older. shingrix does not protect everyone and is not for those with severe allergic reactions to its ingredients or to a previous dose. an increased risk of guillain-barré syndrome was observed after getting shingrix. fainting can also happen. the most common side effects are pain, redness, and swelling at the injection site, muscle pain, tiredness, headache, shivering, fever, and upset stomach. ask your pharmacist or doctor about shingrix. shingles doesn't care. but you should. and they said 30 elders were