Pedian, full name Pediatric Compound Sulfadimethoxine Disodium, is not recommended for first-line use in children and is mainly used for the treatment of upper respiratory tract infections, enteritis, otitis, conjunctivitis, sores and abscesses in children. It is known for its remarkable efficacy and fast onset of action. Pedian is a compound preparation with the following main ingredients: sulfadimethoxine, sulfamidine, and sodium bicarbonate. Its side effects and allergic symptoms are harmful, and its use must be combined with the actual situation of the child and the requirements of medical advice. Dosage: Half a packet by mouth 4 times a day for each dose under 1 year old; 1 packet by mouth 4 times a day for each dose between 1 and 2 years old; 1 half packet by mouth 4 times a day for each dose between 3 and 5 years old; 2 packets by mouth 4 times a day for each dose between 6 and 8 years old; 2 half packets by mouth 4 times a day for 9 to 12 years old, doubled for the first time. Note: Because sulfonamides can cause nuclear jaundice and neonatal hemolysis, they should not be used in newborns and infants under 2 months of age. Use with caution in patients with glucose-6-phosphate dehydrogenase deficiency, hepatic impairment, hematoporphyria, renal impairment, allergy to sulfonamides, and megaloblastic anemia. Adverse reactions to Pedian are more common with allergic reactions, which can be manifested as drug rash, exudative erythema multiforme, exfoliative dermatitis and epidermolysis bullosa atrophic dermatitis in severe cases; also manifested as photosensitivity reactions, drug fever, joint and muscle pain, fever and other serum-like reactions.