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Open Dose Calculator →Ranitidine
Ranitidine
💊 Used for: GERD, peptic ulcer disease
Formulation
Syrup
75mg/5ml
Dose Range
2–4 mg/kg
Max Daily
8 mg/kg
Frequency
Every 12 hours
Max Single
150 mg
Route: Oral
Dose by Child Weight
Based on formulation: 75mg/5ml
| Child's Weight | Dose (mg) | Dose (ml) | Max Daily Dose (mg) |
|---|---|---|---|
| 5 kg | 10–20 mg | 0.7–1.3 ml | ≤ 40 mg |
| 6 kg | 12–24 mg | 0.8–1.6 ml | ≤ 48 mg |
| 7 kg | 14–28 mg | 0.9–1.9 ml | ≤ 56 mg |
| 8 kg | 16–32 mg | 1.1–2.1 ml | ≤ 64 mg |
| 9 kg | 18–36 mg | 1.2–2.4 ml | ≤ 72 mg |
| 10 kg | 20–40 mg | 1.3–2.7 ml | ≤ 80 mg |
| 12 kg | 24–48 mg | 1.6–3.2 ml | ≤ 96 mg |
| 15 kg | 30–60 mg | 2.0–4.0 ml | ≤ 120 mg |
| 18 kg | 36–72 mg | 2.4–4.8 ml | ≤ 144 mg |
| 20 kg | 40–80 mg | 2.7–5.3 ml | ≤ 160 mg |
| 25 kg | 50–100 mg | 3.3–6.7 ml | ≤ 200 mg |
| 30 kg | 60–120 mg | 4.0–8.0 ml | ≤ 240 mg |
* Always verify with your doctor. doses are approximate and may vary based on condition and formulation.
⚠️ Important Warnings
- •Consider safer alternatives
- •Monitor for confusional symptoms
- •May mask gastric cancer symptoms
Possible Side Effects
- •Headache, fatigue
- •GI upset
- •Rare: hepatotoxicity
- •Cimetidine has antiandrogenic effects
- •May mask gastric carcinoma symptoms
- •Use with caution in renal impairment
💡 Use the DoseCare Calculator for interactive dose calculations tailored to your child's exact weight and formulation.
DoseCare is a decision support tool only. Always verify doses with a qualified healthcare provider.