BENA Syrup

Therapeutic Class

Cough & Cold Preparations


Bena is indicated for the relief of chest congestion and coughs with thick phlegm. It clears nasal passages, liquefies and loosens stubborn phlegm and soothes tiresome coughing.

Chemical Composition

Each 5 ml contains
Diphenhydramine Hydrochloride 14 mg
Ammonium Chloride 135 mg
Sodium Citrate 57.5 mg
Sodium Benzoate as preservative 7.50 mg


90 ml / Bot

Dosage & Administration

Unless otherwise prescribed by the physician: • Adult and children over 12 years: 5 to 10 ml every 4 to 6 hours (not to exceed 60ml in 24 hours); • Adult and Children over 12 years: 5 to 10 ml every 4 to 6 hours (not to exceed 60 ml in 24 hours); •Children 6 to 12 years: 2.5 to 5 ml every 4 to 6 hours (not to exceed 30 ml in 24 hours); •Children 2 to 5 years: 2.5 ml every 4 to 6 hours (not to exceed 20 ml in 24 hours). Take medication with a full glass of water. Do not exceed the stated dose.


In patients with known hypersensitivity to antihistamines.

Warning & Precautions

This medicine may cause drowsiness. If affected, do not drive motor vehicles or operate machinery. Avoid taking alcoholic drinks or other drugs that may produce drowsiness. Bena should be used with caution in patients with hepatic or renal diseases. Safety of this preparation in pregnancy has not been established and should be carefully assessed before use. Not to be used in children below 2 years old. To be used with cautions, and as advised by the physician/pharmacist for children age 2 to 6 years.

Side Effects

Antihistaminic side effects include sedation, dizziness, tinnitus, lassitude, incoordination, fatigue, blurred vision, diplopia, euphoria, nervousness, insomnia and tremors. Incidences of gastrointestinal side effects are low. Large doses of ammonium chloride may cause nausea, thirst, headache and progressive drowsiness leading to profound acidosis and hypokalaemia. Excessive sodium salt may cause hypernatraemia. These effects are unlikely to occur with therapeutic dose of the preparation due to its low content of ammonium chloride and sodium salts.