Dorenta – Diphenhydramine Hydrochloride

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Dorenta

10 mg/5 ml Syrup Sedating Anti-histamine

Diphenhydramine Hydrochloride · Eskayef Pharmaceuticals Ltd.

EN বাং

AI Summary Generated by AI for informational purposes only

This medicine is used to treat allergy symptoms like sneezing, runny nose, and itching. It is also used for motion sickness and as a short-term sleep aid. It is not usually recommended during pregnancy or breastfeeding.

Indications

Diphenhydramine syrup is indicated for the treatment of allergic diseases such as hay fever, allergic rhinitis, urticaria, angioedema, atopic dermatitis, contact dermatitis, gastrointestinal allergy, pruritus, physical allergies, reaction to injection of contrast media, reaction to therapeutic preparation and allergic transfusion reactions; also postoperative nausea and vomiting and motion sickness. It is also used for the treatment of certain forms of parkinsonism and certain allergic conjunctivitis. Sometimes it may use as a night time sleep aid and for the short-term management of insomnia.

Pharmacology

Diphenhydramine has anti-histaminic (H1-receptor), anti-emetic, anti-vertigo and sedative and hypnotic properties. The anti-histamine action occurs by blocking the spasmogenic and congestive effects of histamine by competing with histamine for H1 receptor sites on effector cells, preventing but not reversing responses mediated by histamine alone. Such receptor sites may be found in the gut, uterus, large blood vessels, bronchial muscles, and elsewhere. Anti-emetic action is by inhibition at the medullary chemoreceptor trigger zone. Anti-vertigo action is by a central antimuscarinic effect on the vestibular apparatus and the integrative vomiting center and medullary chemoreceptor trigger zone of the midbrain.

Dosage & Administration

Important:
Do not take any medication without a doctor's prescription. Self-medication can be dangerous.

Antihistamine and antitussive:
Tablet:

Adults: 25 mg to 50 mg 3 to 4 times daily.
Children (10 years or over): 25 mg 3 or 4 times daily or as directed by the physician.

Syrup:

Children under 2 years: 2.5 mL every 4 to 6 hours.
Children 2 to under 6 years: 5 mL every 4 to 6 hours.
Children 6 to 12 years: 10-20 mL every 4 to 6 hours.
Adults and children≥12 years: 10-20 mL every 4 to 6 hours.

Sleep aid:
Adults and children over 12 years: 50 mg at bedtime.

Interaction

Antidepressants, particularly of the tricyclic and monoamine oxidase inhibitor types may interact with diphenhydramine. MAO inhibitors prolong and intensify the anticholinergic effects of antihistamines. The CNS effect is increased by alcohol and other CNS depressant drugs.

Contraindications

Diphenhydramine is contraindicated for the premature or newborn infants. Hypersensitivity to any of the component of this drug. Asthma attack, narrow angle glaucoma, prostatic hypertrophy, stenosing peptic ulcer, pyloroduodenal obstructions, bladder neck obstruction, patients receiving antidepressant therapy.

Side Effects

Side-effects include drowsiness, dizziness and dryness of mouth, nausea and vomiting. Other infrequently reported effects are vertigo, palpitation, blurring of vision, headache, restlessness, insomnia and thickening of bronchial secretions. Allergic reactions, diarrhoea, vomiting and excitation may also occur.

Pregnancy & Lactation

Safety for use in pregnancy and lactation has not been established. Its use therefore in such patients should involve consideration of expected benefits and possible risks.

Precautions & Warnings

Patients should be cautioned not to operate vehicles or hazardous machinery until their response to the drug has been determined.

Overdose Effects

Antihistamine over dosage reactions may vary from central nervous system depression to stimulation. Stimulation is particularly likely in children. Atropine-like signs and symptoms such as dryness of mouth, fixed and dilated pupils, flushing and gastrointestinal symptoms may also occur.

Storage Conditions

Do not store above 30°C temperature. Keep way from light and wet place. Keep out of reach of children.

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