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Open Dose Calculator →Hydralazine
Hydralazine hydrochloride
💊 Used for: Hypertension especially with renal involvement
Formulation
Tablet
Standard tablet
Dose Range
0.5–7 mg/kg
Max Daily
N/A
Frequency
Every 6-8 hours (oral); q 6 hr IV/IM for crisis (max 2 mg/kg/dose)
Max Single
20 mg
Route: Oral/IM/IV
Dose by Child Weight
Based on formulation: Standard tablet
| Child's Weight | Dose (mg) | Dose (ml) | Max Daily Dose (mg) |
|---|---|---|---|
| 5 kg | 3–35 mg | 2.5–35.0 ml | — |
| 6 kg | 3–42 mg | 3.0–42.0 ml | — |
| 7 kg | 4–49 mg | 3.5–49.0 ml | — |
| 8 kg | 4–56 mg | 4.0–56.0 ml | — |
| 9 kg | 5–63 mg | 4.5–63.0 ml | — |
| 10 kg | 5–70 mg | 5.0–70.0 ml | — |
| 12 kg | 6–84 mg | 6.0–84.0 ml | — |
| 15 kg | 8–105 mg | 7.5–105.0 ml | — |
| 18 kg | 9–126 mg | 9.0–126.0 ml | — |
| 20 kg | 10–140 mg | 10.0–140.0 ml | — |
| 25 kg | 13–175 mg | 12.5–175.0 ml | — |
| 30 kg | 15–210 mg | 15.0–210.0 ml | — |
* Always verify with your doctor. doses are approximate and may vary based on condition and formulation.
⚠️ Important Warnings
- •C/I: Liver disease, pheochromocytoma, depression, MAOI use.
💡 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.