Vaccines are products that protect people against serious and potentially deadly diseases. Unlike most medicines that treat or cure diseases, vaccines prevent them. This chapter covers the hepatitis B vaccine, tetanus toxoid, haemophilus influenzae type B, Antisnake venom, Anti-D immunoglobulin (human), antitetanus immunoglobulin (human), rabies immunoglobulin (human), hepatitis B immunoglobulin, Bacillus Calmette–Guérin (BCG) vaccine, diphtheria, pertussis and tetanus (DPT) vaccine, poliomyelitis vaccine (Oral) IP, diphtheria and tetanus vaccine (For children under 7 years), tetanus toxoid, adsorbed IP, measles vaccine, mumps, measles and rubella (MMR), typhoid vaccine, cholera vaccine, hepatitis a vaccine, rabies vaccine, varicella vaccine, pneumococcal vaccine (polyvalent), rabies immunoglobulin, rotavirus vaccine, and influenza virus inactivated vaccine along with their indication, dose, contraindication, precaution, adverse effect, and drug interaction.