Adverse reactions can occur with both DPT and DPT vaccines. Due to individual differences, the reactions will be different, so there is no way to compare which reaction is greater. 1. Adverse reactions to DPT: localized redness, swelling, hard nodules, tenderness, sometimes accompanied by low to moderate fever, subcutaneous tissue reactions (urticaria, itching), digestive symptoms (diarrhea, etc.). Rarely, there will be swelling, hard nodules, erythema over 3cm in diameter, generalized inflammation and other serious reactions. 2. Adverse reactions of Pepcid: low fever may appear in 3, 4, 5 months of baby inoculation, and high fever may appear after one year of age when inoculation is easy to strengthen the needle; some babies may have mild nausea, vomiting, poor diet, diarrhea and other indigestion symptoms; some may have local swelling, redness, heat and pain. Parents are advised to choose which vaccine to receive according to their child’s own condition under the guidance of a doctor.