SURDEX SYRUP
PHENYLEPRINEHYDROCHLORIDEPARACETAMOLCHLORPHENERAMINE MALEATE
What it does
This medicine combines three active ingredients to relieve symptoms such as pain, fever, and allergy reactions.
Commonly used for: pain relief (analgesia), fever reduction (antipyretic), allergy symptoms (hay fever) relief
Read more in plain English ↓Plain-language summary for general understanding - not medical advice. Always follow your pharmacist/doctor.
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Source: Pharmacy and Poisons Board · fetched 2026-01-28 22:10:08 · updated 2026-03-23 04:55:19
About this medicine
This medicine combines three active ingredients to relieve symptoms such as pain, fever, and allergy reactions.
What it treats
- pain relief (analgesia)
- fever reduction (antipyretic)
- allergy symptoms (hay fever) relief
How it works
It works by blocking certain chemicals in the body that cause pain and allergic reactions, while also reducing fever.
Who it's for
This medicine is for adults and children experiencing pain, fever, or allergy symptoms.
AI-assisted summary grounded in BNF data - general information only, not medical advice. Always confirm with your pharmacist or doctor.
Clinical monograph: phenyleprinehydrochlorideparacetamolchlorpheneramine
Contra-indications
- Hypersensitivity to phenylephrine, paracetamol, chlorpheniramine or any component of the formulation
- Severe hypertension
- Severe coronary artery disease
- Concurrent use of monoamine oxidase inhibitors (MAOIs)
Adverse effects
- Dizziness
- Headache
- Nausea
- Vomiting
- Dry mouth
- Constipation
- Drowsiness
- Blurred vision
- Increased blood pressure
- Palpitations
Interactions
- Caution with other sympathomimetic drugs
- Increased risk of adverse effects with alcohol
- Potential interaction with antihypertensive agents
- MAOIs can cause hypertensive crisis when used with sympathomimetics
Precautions
- Use with caution in patients with hypertension, diabetes, hyperthyroidism or prostatic hypertrophy
- Patients should be monitored for signs of increased blood pressure
- Use with caution in elderly patients
Pregnancy
Use during pregnancy is not recommended unless clearly necessary. Consult healthcare professionals for advice.
Breast-feeding
Paracetamol is generally considered safe during breastfeeding. Caution is advised with chlorpheniramine due to its sedative effects.
Storage
Store in a cool, dry place away from direct sunlight. Keep out of reach of children.
Formulations
- Tablets
- Syrups
- Suspensions
AI-synthesized from BNF references - general information only, not a substitute for professional medical advice or the current BNF. Verify doses with a pharmacist.