Question: is hep b a shot?
Answer: Two-Dose Hepatitis B Vaccine Schedule for Adults In November 2017, a vaccine was approved by the FDA for use in the U.S. Heplisav-B (Dynavax) is a two-dose vaccine approved for use in adults aged 18 and older. The vaccine is administered as two doses given one-month apart. Ask your doctor about the 2-dose vaccine.