Promethazine

by Irza

Active ingredients: Promethazine, Promethazine HCl

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About Promethazine HCl

Antihistamine, Systemic

Uses

Allergic conditions.

How to take it

ORAL: Adults: 10-20 mg two or three times daily. Children: Symptomatic relief of allergy such as hay fever, insomnia associated with urticaria and pruritus: 2-5 yr, 5 mg twice daily or 5-15 mg at night; 5-10 yr, 5-10 mg twice daily or 10-25 mg at night; 10-18 yr, 10-20 mg 2-3 times daily or 25 mg at night increased to 25 mg twice daily if necessary. Sedation (short-term use): 2-5 yr, 15-20 mg; 5-10 yr, 20-25 mg; 10-18 yr, 25-50 mg. Sedation in intensive care: 1 mth-12 yr, 0.5-1 mg/kg, max 25 mg, 4 times daily, adjusted according to response; 12-18 yr, 25-50 mg 4 times daily, adjusted according to response. Nausea and vomiting: The following dose at bedtime on night before travel, repeat…

Side effects

Drowsiness, impaired reactions. Dizziness, disorientation, restlessness, headache, fatigue, anticholinergic effects, photosensitivity. Extra-pyramidal reactions, convulsions (high doses). Hyperexcitability in children.

Pregnancy and breastfeeding

Pregnancy: Risk cannot be ruled out. Lactation: Contraindicated or not recommended. Contraindications: Coma, CNS depression. Precautions: Asthma, severe coronary artery disease, bronchitis, bronchiectasis, narrow angle glaucoma, epilepsy, renal or hepatic impairment, GI or urinary obstruction. Avoid if signs or symptoms of Reye's syndrome.

Advice

Contact prescriber if there is unrelieved nausea or diarrhoea, unusual weight gain, increased sleepiness or stimulation, chest pain or palpitations, sore throat or difficulty in breathing, involuntary movements, restlessness. Avoid alcohol during therapy. Avoid prolonged exposure to sunlight, use sunscreen to prevent photosensitivity.

Full information on Promethazine HCl →

Interactions with Promethazine HCl

Alcohol, CNS depressants, MAOIs, anticholinergics.

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Compiled by Healify Pharmacy from published drug references. How we compile it →

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