| H2-receptor blockers |
| Cimetidine (Tagamet) | 300 mg per 5 mL, 200-, 300-, 400-, 800-mg tablets | 20 to 40 mg per kg per day, in divided doses every 6 hours |
| Ranitidine (Zantac) | 75 mg per 5 mL, 150-, 300-mg tablets | 4 to 8 mg per kg per day, in divided doses every 8 to 12 hours |
| Nizatidine (Axid) | 150-, 300-mg capsules* | 4 to 8 mg per kg per day, in divided doses, every 12 hours |
| Famotidine (Pepcid) | 40 mg per 5 mL, 20-, 40-mg tablets | 1 to 2 mg per kg per day, once or twice daily, maximum dosage: 40 mg per day |
| Proton pump inhibitors |
| Omeprazole (Prilosec) | 10-, 20-mg capsules* | 0.5 to 3 mg per kg per day, in divided doses every 12 hours |
| Lansoprazole (Prevacid) | 15-, 30-mg capsules* | 0.3 to 1.5 mg per kg per day, in divided doses every 12 hours |