Zen Retard
Zen Retard is a modified-release (controlled-release) formulation of Carbamazepine, an anticonvulsant medication. It works by reducing abnormal electrical activity in the brain and nervous system. The 'Retard' formulation allows for a slow, steady release of the active ingredient into the bloodstream, minimizing side effects and providing long-lasting control of symptoms.
Dosage by Body Weight
Must be swallowed whole with fluid; do not crush or chew, as this destroys the modified-release mechanism. Dosage must be strictly individualized and monitored by a doctor. Never stop taking this medication abruptly.
- Body Weight
- Below 5 kg
- Dose
- Not recommended
- Frequency
- N/A
- Tracking Notes
- Zen Retard tablets cannot be crushed or safely split for infants. Liquid formulations of carbamazepine are preferred.
- Body Weight
- 5-7 kg
- Dose
- Not recommended
- Frequency
- N/A
- Tracking Notes
- Modified-release tablets are not suitable for this weight range. Consult a pediatrician for alternative liquid formulations.
- Body Weight
- 8-10 kg
- Dose
- 100 mg daily
- Frequency
- Once daily or divided into two doses
- Tracking Notes
- Only if child can swallow whole pediatric-strength tablets safely. Modified-release tablets must not be crushed.
- Body Weight
- 11-15 kg
- Dose
- 100 mg to 200 mg daily
- Frequency
- Divided into 1 or 2 doses
- Tracking Notes
- Requires strict medical supervision. Ensure the child is capable of swallowing the tablet whole.
- Body Weight
- 16-20 kg
- Dose
- 200 mg to 300 mg daily
- Frequency
- Divided into 2 doses
- Tracking Notes
- Adjusted slowly based on therapeutic response and blood levels as advised by a specialist.
| Body Weight | Dose | Frequency | Tracking Notes |
|---|---|---|---|
| Below 5 kg | Not recommended | N/A | Zen Retard tablets cannot be crushed or safely split for infants. Liquid formulations of carbamazepine are preferred. |
| 5-7 kg | Not recommended | N/A | Modified-release tablets are not suitable for this weight range. Consult a pediatrician for alternative liquid formulations. |
| 8-10 kg | 100 mg daily | Once daily or divided into two doses | Only if child can swallow whole pediatric-strength tablets safely. Modified-release tablets must not be crushed. |
| 11-15 kg | 100 mg to 200 mg daily | Divided into 1 or 2 doses | Requires strict medical supervision. Ensure the child is capable of swallowing the tablet whole. |
| 16-20 kg | 200 mg to 300 mg daily | Divided into 2 doses | Adjusted slowly based on therapeutic response and blood levels as advised by a specialist. |
Formulation
Purpose
Treatment of epilepsy (seizures), trigeminal neuralgia (severe facial nerve pain), and bipolar disorder.
Generic Name
CarbamazepineScheduled Drug
Yes. This medicine should be supplied or used only according to applicable prescription and regulatory requirements.