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- Phenergan 25mg Tablets 56 Tablets
Phenergan 25mg Tablets contain promethazine hydrochloride, a sedating antihistamine used to relieve certain allergic symptoms, prevent or treat nausea and travel sickness, and provide short-term treatment for insomnia in adults.
Promethazine belongs to a group of medicines called phenothiazines. It blocks the effects of histamine, a substance released by the body during allergic reactions. It also acts on the central nervous system, which can cause significant drowsiness.
What Are Phenergan 25mg Tablets Used For?
- Hay fever and allergic rhinitis: Helps relieve symptoms associated with allergies.
- Hives and skin allergies: Reduces itching and other symptoms of urticaria.
- Travel sickness: Helps prevent or treat nausea and vomiting associated with travel.
- Nausea and vomiting: May be used as an antiemetic when appropriate.
- Short-term insomnia: May be used in adults for temporary sleeping difficulties following professional assessment.
Phenergan is not intended for routine or prolonged treatment of insomnia.
Active ingredient: Promethazine hydrochloride 25mg.
Age suitability: Not suitable for children under 6 years. Age and dosing requirements depend on the reason for treatment.
Active Ingredient
Each tablet contains:
- Promethazine hydrochloride 25mg
Other Ingredients
- Lactose monohydrate
- Maize starch
- Povidone
- Magnesium stearate
- Polyethylene glycol
- Hypromellose
- Titanium dioxide (E171)
- Indigo carmine aluminium lake (E132)
Contains lactose. If you have been told that you have an intolerance to certain sugars, consult a healthcare professional before taking this medicine.
Always refer to the patient information leaflet supplied with your pack for the complete ingredient list.
The correct dose depends on the patient's age and the condition being treated. Follow the patient information leaflet or the instructions of your doctor or pharmacist.
Do not take Phenergan for longer than 7 days without medical advice.
For Allergies
Adults and children over 10 years:
- Start with one 25mg tablet at night.
- If necessary, the dose may be increased to one tablet twice daily.
- Maximum: 50mg daily.
Children aged 6–10 years:
- One 25mg tablet at night.
- Maximum: 25mg daily.
For Travel Sickness
Adults and children over 10 years:
- Take one 25mg tablet the night before travelling.
- The dose may be repeated after 6–8 hours if required.
For children aged 6–10 years, the manufacturer's instructions recommend Phenergan Elixir instead.
For Short-Term Insomnia
Adults:
- Take one or two tablets (25–50mg) at night, as directed.
This medicine should only be used for short-term sleep difficulties.
For Short-Term Sedation in Children
Use in children requires careful professional assessment.
Children aged 6–10 years:
- One 25mg tablet at night, where clinically appropriate.
Children over 10 years:
- The licensed dose is 25–50mg at night, but dosing must be assessed individually.
Do not use Phenergan simply to make a child sleepy without appropriate medical advice.
Important Dosing Instructions
- Swallow tablets with water.
- Do not exceed the recommended dose.
- Do not combine with other sedating medicines without professional advice.
- Avoid alcohol throughout treatment.
- Do not drive or operate machinery if affected by drowsiness.
Possible Side Effects
- Drowsiness or sleepiness
- Dizziness
- Dry mouth
- Blurred vision
- Headache
- Confusion
- Restlessness
- Nightmares
- Stomach discomfort
- Difficulty passing urine
- Drowsiness may continue into the following day.
Serious Side Effects
Stop taking Phenergan and seek urgent medical attention if you experience:
- Difficulty breathing or a severe allergic reaction
- Swelling of the face, lips, tongue or throat
- A very fast or irregular heartbeat
- Severe muscle stiffness or unusual involuntary movements
- Seizures
- Yellowing of the skin or eyes
- Unexplained fever, sore throat or frequent infections
Children may occasionally experience unusual excitement, agitation or hallucinations instead of sedation.
Phenergan can increase sensitivity to sunlight. Avoid excessive sun exposure during treatment.
Storage Instructions
- Store below 30°C.
- Keep tablets in their original carton to protect them from light.
- Keep out of the sight and reach of children.
- Do not use after the expiry date.
- Return unused or expired medicines to a pharmacy for safe disposal.
Frequently asked questions
What are Phenergan 25mg Tablets?
Phenergan 25mg Tablets contain promethazine hydrochloride, a sedating antihistamine used for allergies, nausea, travel sickness and certain short-term sedative indications.
What is Phenergan used for?
It may be used for allergic conditions, travel sickness, nausea and vomiting, and short-term insomnia in adults.
Is Phenergan an antihistamine?
Yes. It is a first-generation, sedating antihistamine.
Does Phenergan make you sleepy?
Yes. Drowsiness is a common effect and may persist into the next day.
How long can I take Phenergan?
Do not take it for longer than seven days without medical advice.
Can Phenergan be used every night?
It should not be used every night over an extended period without medical review.
Can I drink alcohol while taking Phenergan?
No. Alcohol can increase its sedative effects and should be avoided.
Can I drive after taking Phenergan?
Do not drive if you feel sleepy, dizzy or have blurred vision. These effects can continue into the following morning.
Can I take Phenergan with other antihistamines?
Do not combine antihistamines without advice from a pharmacist or doctor.
Can I take Phenergan with sleeping tablets?
Combining Phenergan with sleeping tablets or other sedatives can increase the risk of excessive sedation and breathing problems. Seek professional advice.
