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Requires Prescription: Yes
Active Ingredients:
Aminophylline: A bronchodilator that relaxes muscles in the airways, improving breathing.
Diphenhydramine HCl: An antihistamine that reduces allergy symptoms and has sedative properties.
Ammonium Chloride: An expectorant that helps loosen mucus in the airways.
Menthol: Provides a cooling sensation and soothes the throat.
Form: Syrup
Pack Size: 120 ml bottle
Manufacturer: The Searle Company Ltd.
Hydryllin Syrup works by combining the effects of its active ingredients:
Aminophylline relaxes the muscles in the lungs and chest, making it easier to breathe.
Diphenhydramine HCl blocks histamine receptors, reducing allergy symptoms like sneezing and runny nose.
Ammonium Chloride acts as an expectorant, thinning mucus and making it easier to cough up.
Menthol provides a cooling effect, soothing the throat and reducing cough reflex.
Dosage:
Adults and children over 12 years: 15–30 ml three times a day.
Children 6–12 years: 15–30 ml three times a day.
Children under 6 years: Dosage should be determined by a physician.
Administration:
Shake the bottle well before use.
Use a measuring cup or spoon for accurate dosing.
Take orally, with or without food.
Common Side Effects:
Drowsiness
Dizziness
Nausea or vomiting
Dry mouth
Upset stomach
Serious Side Effects:
Rapid or irregular heartbeat
Allergic reactions (rash, itching, swelling)
Difficulty urinating
Seizures
Note: If any serious side effects occur, seek medical attention immediately.
Hydryllin Syrup may interact with:
CNS depressants: Such as alcohol, sedatives, and tranquilizers, increasing drowsiness.
MAO inhibitors: Can lead to serious interactions; avoid concurrent use.
Beta-blockers and other heart medications: May affect heart rate and blood pressure.
Always inform your healthcare provider about all medications and supplements you are taking.
Pregnancy and Breastfeeding: The safety of Hydryllin Syrup during pregnancy and breastfeeding has not been established. Consult your doctor before use.
Operating Machinery: May cause drowsiness; avoid driving or operating heavy machinery.
Medical Conditions: Use with caution in patients with heart disease, high blood pressure, liver or kidney problems, and glaucoma.
Do Not Use:
If you are allergic to aminophylline, diphenhydramine, or any other ingredient in this formulation.
In children under 2 years of age without medical supervision.
Avoid Alcohol:
Combining Hydryllin with alcohol may intensify drowsiness and central nervous system depression.
Sedative Effect:
Hydryllin contains diphenhydramine, which can cause significant drowsiness. Avoid driving or operating heavy machinery after taking it.
Heart Disease:
Use cautiously in patients with a history of arrhythmias, high blood pressure, or other cardiovascular issues, as aminophylline can increase heart rate.
Seizure Risk:
Theophylline derivatives like aminophylline may lower the seizure threshold—not recommended for patients with seizure disorders unless supervised by a doctor.
Elderly Patients:
May be more sensitive to side effects such as dizziness, confusion, and sedation.
Pregnancy & Breastfeeding:
Safety has not been fully established. Use only if prescribed by a healthcare provider after risk-benefit assessment.
Medical Conditions:
Use with caution in patients with:
Asthma or COPD
Liver or kidney disease
Thyroid disorders
Prostate enlargement or urinary retention
Glaucoma
Overdose Risk:
Accidental overdose (especially in children) can lead to severe drowsiness, restlessness, tremors, seizures, and irregular heartbeat. Seek immediate medical attention if overdose is suspected.
Store at room temperature (below 30°C).
Protect from light and moisture.
Keep out of reach of children.
Do not use after the expiry date mentioned on the package.