Phenergan Syrup

Composition of Phenergan Syrup

Phenergan Syrup contains Promethazine hydrochloride 5 mg/5 mL. It belongs to the First-generation H1 antihistamine (phenothiazine derivative) class of medicines.

Uses of Phenergan Syrup

• Relief of allergic conditions such as allergic rhinitis (runny nose
• sneezing)
• urticaria (hives)
• pruritus (itching)
• and other allergy-related symptoms; may also be used for nausea/vomiting and motion sickness when prescribed.

Key benefits

• Relieves sneezing and runny nose due to allergy
• Reduces itching and hives
• Helps control allergic cough/post-nasal drip symptoms
• Provides relief in motion sickness/nausea when prescribed
• Provides sedative effect helpful for night-time allergy symptoms

How Phenergan Syrup works

Promethazine is a first-generation H1 antihistamine. It blocks histamine H1 receptors to reduce allergy symptoms and also has anticholinergic and sedative effects which can help with nausea and motion sickness.

How to take Phenergan Syrup

Oral syrup: take the dose exactly as prescribed by a doctor. Can be taken with or without food; taking after food may reduce stomach upset. Measure with a proper measuring cup/spoon. May cause drowsiness—prefer bedtime dosing if advised; do not drive or operate machinery after taking.

Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.

Missed dose and overdose

If you miss a dose

Take it as soon as you remember. If your next dose is almost due, skip the one you missed — never take two doses together to catch up.

If you take too much

An overdose of this medicine can cause severe drowsiness, a fast heartbeat, confusion and, in children, agitation and fits. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.

Side effects of Phenergan Syrup

Most side effects of Phenergan are mild and settle as the body adjusts. Reported side effects include:

• Drowsiness
• dizziness
• dry mouth
• blurred vision
• constipation
• nausea
• vomiting
• confusion (especially in elderly)
• urinary retention

Stop the medicine and seek help immediately for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.

Safety advice for Phenergan Syrup

Warnings and precautions

Schedule H: use only on prescription. Causes significant drowsiness—avoid driving, alcohol and other sedatives. Not recommended in children below 2 years (risk of severe respiratory depression); use with caution and only under medical advice in older children. Use caution in asthma/COPD, sleep apnoea, glaucoma, prostate enlargement/urinary retention, epilepsy, and liver disease. May cause photosensitivity. Seek urgent help for breathing difficulty, severe sedation, allergic reaction, or unusual movements.

Do not take Phenergan if

Not for anyone with a known allergy to this medicine or to any ingredient in the pack. The sedating antihistamines are not suitable for very young children, or for people with glaucoma or an enlarged prostate, without medical advice.

Interactions with other medicines

Alcohol, opioids, benzodiazepines and other CNS depressants (increased sedation/respiratory depression); other anticholinergics (increased dry mouth/constipation/urinary retention); MAO inhibitors (enhanced anticholinergic/CNS effects); tricyclic antidepressants; antihypertensives (additive dizziness/low BP).

How to store Phenergan Syrup

Store below 25°C, protected from light and moisture. Keep bottle tightly closed. Keep out of reach of children.

Expert advice for Phenergan Syrup

Taking it at bedtime reduces the impact of any drowsiness. Identify and avoid your triggers where you can — dust, pollen, cold air.

Manufacturer and class

Manufacturer:

ABBOTT HEALTHCARE LIMITED

Therapeutic class:

Antiallergic / Antihistamine

Drug class:

First-generation H1 antihistamine (phenothiazine derivative)