1. Clinical Overview
A fixed-dose combination therapy primarily used as an appetite stimulant and hepatoprotective agent in the Indian market. Cyproheptadine is a first-generation antihistamine with serotonin-antagonist and appetite-stimulating properties. Tricholine Citrate acts as a lipotropic agent and choleretic, aiding fat metabolism and bile flow. Sorbitol is an osmotic agent and sweetening syrup base that provides a mild laxative effect and improves palatability. This combination is widely prescribed for underweight children and adults, and for supportive care in liver disorders.
| Onset | Duration | Bioavailability |
|---|---|---|
| Cyproheptadine: 30-60 minutes (appetite stimulation). Tricholine Citrate: Variable, over days. Sorbitol: Laxative effect in 24-48 hours. | Cyproheptadine: 4-8 hours. Overall therapeutic effect on appetite and weight gain is observed over weeks of continuous therapy. | Cyproheptadine: ~40-50% (oral). Tricholine Citrate: Not well quantified, metabolized in GI tract. Sorbitol: Poorly absorbed (<2%). |
2. Mechanism of Action
The combination works synergistically. Cyproheptadine antagonizes histamine H1 and serotonin (5-HT2) receptors in the hypothalamic feeding center, reducing the sensation of satiety and stimulating appetite. Tricholine Citrate provides choline, a component of phosphatidylcholine, essential for hepatic fat export (as VLDL) and cell membrane integrity, thus preventing fatty infiltration. It also has choleretic action. Sorbitol creates an osmotic gradient in the gut, drawing water into the lumen, softening stools, and relieving constipation often associated with Cyproheptadine. Its sweet taste improves compliance.
3. Indications & Uses
- Appetite stimulation and weight gain in underweight individuals (children and adults)
- Supportive therapy in fatty liver disease (NAFLD/Alcoholic)
- As an adjuvant in chronic liver disorders (e.g., cirrhosis, hepatitis)
4. Dosage & Administration
Adult Dosage: 5 ml to 10 ml (1-2 teaspoonfuls) three times a day, before meals. Maximum: 30 ml/day.
Administration: Shake the bottle well before use. Use the measuring cup/spoon provided. Take orally, preferably 15-30 minutes before meals. Can be taken with or without water. Do not drive or operate machinery after taking the dose due to drowsiness.
5. Side Effects
Common side effects may include:
- Drowsiness, sedation, somnolence
- Dry mouth, nose, and throat
- Dizziness
- Increased appetite and weight gain
- Thickening of bronchial secretions
- Mild abdominal discomfort or distension
- Diarrhea (due to Sorbitol, especially with high doses)
6. Drug Interactions
| Drug | Effect | Severity |
|---|---|---|
| CNS Depressants (Alcohol, Benzodiazepines, Opioids, Barbiturates) | Additive CNS depression, profound sedation, respiratory depression risk. | Major |
| Monoamine Oxidase Inhibitors (MAOIs) - e.g., Phenelzine, Selegiline | Exaggerated anticholinergic and CNS depressant effects; hypertensive crisis risk. | Contraindicated |
| Anticholinergics (Atropine, Tricyclic Antidepressants, Antipsychotics) | Additive anticholinergic side effects (dry mouth, constipation, urinary retention, confusion). | Major |
| Serotonergic Drugs (SSRIs, SNRIs, Tramadol, Triptans) | Cyproheptadine's serotonin antagonism may reduce efficacy of these drugs. Potential for serotonin syndrome if stopped abruptly while on these. | Moderate |
| Hypertensive Agents | Cyproheptadine may counteract the effects of guanethidine and similar agents. | Moderate |
7. Patient Counselling
- DO take the syrup before meals as directed.
- DO shake the bottle well before each use.
- DO use the measuring device provided for accurate dose.
- DO inform your doctor if you are pregnant, planning pregnancy, or breastfeeding.
- DO inform your doctor about all other medicines you are taking.
- DONT consume alcohol while on this medication.
- DONT drive, operate machinery, or perform hazardous tasks until you know how it affects you.
- DONT take a double dose to make up for a missed one.
- DONT give this medicine to children under 2 years without doctor's advice.
8. Toxicology & Storage
Overdose: Manifests as CNS depression (somnolence to coma) or paradoxical CNS stimulation (hallucinations, convulsions) especially in children. Anticholinergic crisis: dry skin and mucous membranes, flushing, hyperthermia, tachycardia, urinary retention, dilated pupils, ileus. Severe hypotension, respiratory depression, and cardiac arrest may occur.
Storage: Store at room temperature (15-30°C). Protect from light and moisture. Keep the bottle tightly closed. Keep out of reach and sight of children. Do not freeze. Discard any unused medicine after the expiry date.