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Open Dose Calculator →Phenylephrine
Phenylephrine Hydrochloride
💊 Used for: Hypotension, nasal congestion, mydriasis
Formulation
Nasal Drops
0.25%/0.5% nasal drops
Dose Range
0.1–0.15 mg/kg
Max Daily
N/A
Frequency
Q4h PRN
Max Single
5 mg
Route: Oral/Nasal
Dose by Child Weight
Based on formulation: 0.25%/0.5% nasal drops
| Child's Weight | Dose (mg) | Dose (ml) | Max Daily Dose (mg) |
|---|---|---|---|
| 5 kg | 1–1 mg | 0.5–0.8 ml | — |
| 6 kg | 1–1 mg | 0.6–0.9 ml | — |
| 7 kg | 1–1 mg | 0.7–1.1 ml | — |
| 8 kg | 1–1 mg | 0.8–1.2 ml | — |
| 9 kg | 1–1 mg | 0.9–1.3 ml | — |
| 10 kg | 1–2 mg | 1.0–1.5 ml | — |
| 12 kg | 1–2 mg | 1.2–1.8 ml | — |
| 15 kg | 2–2 mg | 1.5–2.3 ml | — |
| 18 kg | 2–3 mg | 1.8–2.7 ml | — |
| 20 kg | 2–3 mg | 2.0–3.0 ml | — |
| 25 kg | 3–4 mg | 2.5–3.8 ml | — |
| 30 kg | 3–5 mg | 3.0–4.5 ml | — |
* Always verify with your doctor. doses are approximate and may vary based on condition and formulation.
⚠️ Important Warnings
- •May cause hypertension
- •Avoid in hyperthyroidism
Possible Side Effects
- •Hypertension
- •Tachycardia
- •Headache
💡 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.