Istalol
Istalol is a prescription beta-blocker eye drop containing timolol maleate. It works by reducing the amount of fluid produced inside the eye, which lowers the pressure within the eye and helps prevent vision loss or damage to the optic nerve.
Dosage by Body Weight
The standard dose is 1 drop in the affected eye(s) once daily in the morning. To prevent systemic absorption, apply gentle pressure to the tear duct (nasolacrimal occlusion) for 1 to 2 minutes after instillation.
- Body Weight
- Below 5 kg
- Dose
- Not recommended
- Frequency
- Do not use
- Tracking Notes
- Safety and efficacy have not been established in pediatric patients. Beta-blockers carry a risk of apnea and bradycardia in neonates.
- Body Weight
- 5-7 kg
- Dose
- Not recommended
- Frequency
- Do not use
- Tracking Notes
- Consult a pediatric ophthalmologist. Not routinely used in infants due to risk of systemic absorption and side effects.
- Body Weight
- 8-10 kg
- Dose
- Not routine
- Frequency
- Only as prescribed by a specialist
- Tracking Notes
- Dosage is not determined by body weight. If prescribed, extreme caution and monitoring for systemic beta-blocking effects are required.
- Body Weight
- 11-15 kg
- Dose
- Not routine
- Frequency
- Only as prescribed by a specialist
- Tracking Notes
- Strict monitoring of heart rate and respiration is recommended if used in young children.
- Body Weight
- 16-20 kg
- Dose
- Not routine
- Frequency
- Only as prescribed by a specialist
- Tracking Notes
- Standard pediatric dosing guidelines for ophthalmic beta-blockers are not based on weight; use lowest effective frequency if prescribed.
| Body Weight | Dose | Frequency | Tracking Notes |
|---|---|---|---|
| Below 5 kg | Not recommended | Do not use | Safety and efficacy have not been established in pediatric patients. Beta-blockers carry a risk of apnea and bradycardia in neonates. |
| 5-7 kg | Not recommended | Do not use | Consult a pediatric ophthalmologist. Not routinely used in infants due to risk of systemic absorption and side effects. |
| 8-10 kg | Not routine | Only as prescribed by a specialist | Dosage is not determined by body weight. If prescribed, extreme caution and monitoring for systemic beta-blocking effects are required. |
| 11-15 kg | Not routine | Only as prescribed by a specialist | Strict monitoring of heart rate and respiration is recommended if used in young children. |
| 16-20 kg | Not routine | Only as prescribed by a specialist | Standard pediatric dosing guidelines for ophthalmic beta-blockers are not based on weight; use lowest effective frequency if prescribed. |
Formulation
Ophthalmic SolutionEye Drops
Purpose
To decrease elevated intraocular pressure in patients with ocular hypertension or open-angle glaucoma.
Generic Name
Timolol maleateScheduled Drug
No. This medicine is generally not treated as a scheduled/prescription-only drug in common consumer references, but local rules may vary.