Branded medicines
Medicine category
Allergy Medicine South Africa
Allergy medicine covers everything used to treat the body's overreaction to something harmless: pollen, dust, pet dander, mould, insect bites or certain foods. The category is large, but the choices become manageable once you sort them by where your symptoms actually are.
Independent and evidence-basedInformation only, not a pharmacy
Ingredient type
Medicine category
Common uses
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Class
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South Africa access
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Common forms
Tablets, syrups, creams
Key safety note
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What this category covers
An allergic reaction happens when the immune system treats a harmless substance as a threat and releases histamine and related chemicals. Those chemicals cause the familiar symptoms: sneezing, a runny or blocked nose, itchy or watery eyes, itchy skin, hives and, in more severe cases, swelling and breathing difficulty.
Allergy medicines work at different points in that process. Some block histamine after it is released, some prevent the release, and some reduce the inflammation that follows. Which one suits you depends on your symptoms, not on which product is best known.
This category covers tablets, syrups, nasal sprays, eye drops and skin preparations, along with the safety points that apply across all of them.
Common medicine types in this category
- Antihistamine tablets. The mainstay for general allergy symptoms. Covered in antihistamine tablets South Africa, with the drowsiness question addressed in non drowsy allergy tablets South Africa.
- Steroid nasal sprays. Often the most effective option for persistent nasal symptoms, particularly a blocked nose, which antihistamine tablets treat poorly.
- Antihistamine nasal sprays. Faster acting on nasal symptoms than a steroid spray, useful for intermittent problems.
- Allergy eye drops. For itchy, red, watery eyes that tablets have not settled.
- Skin preparations. Creams and lotions for itching, rashes and insect bites.
- Emergency treatment. Adrenaline auto injectors for people at risk of severe allergic reactions, prescribed and used under medical guidance.
How to choose by symptom
Start from where the symptoms are rather than from the brand you recognise.
For sneezing, itching and a runny nose, an antihistamine tablet is the usual starting point. For a persistently blocked nose, a steroid nasal spray generally works better, though it takes several days of regular use to reach full effect, which is why people often abandon it too early. For itchy eyes specifically, drops act where tablets act only indirectly. For itchy skin and hives, an antihistamine tablet is standard, and a pharmacist can advise on what to apply.
The drowsiness question decides many purchases. Older antihistamines such as chlorphenamine cause noticeable sedation, which matters for driving, work and school. Newer options such as loratadine and cetirizine cause far less, though cetirizine still makes some people sleepy. See drowsy vs non drowsy antihistamines and loratadine vs cetirizine.
For seasonal allergy, starting treatment before your usual season rather than after symptoms peak makes a noticeable difference. See hay fever medicine South Africa.
Key ingredients
Brand names change and vary in price; ingredients are what determine the effect. Two worth knowing are cetirizine, a widely used option with little sedation for most people, and chlorphenamine, an older sedating antihistamine found in many South African allergy and cold products.
Knowing the ingredient also protects you from doubling up. Cold and flu remedies frequently contain an antihistamine already, so adding an allergy tablet can mean taking two.
For itching specifically, see antihistamine for itching.
Safety, interactions and when to ask
Ask a pharmacist before choosing if the medicine is for a child, if you are pregnant or breastfeeding, if you take chronic medicine, or if you have glaucoma, an enlarged prostate, epilepsy, liver or kidney problems, or severe asthma.
Sedating antihistamines and alcohol combine poorly, and older adults are affected more strongly by them. Never use a sedating antihistamine to make a child sleep.
See a doctor if symptoms persist despite treatment, if they interfere with sleep or daily life, if you need medicine continuously for months, or if you want to identify your triggers through testing.
Get emergency help for swelling of the face, lips, tongue or throat, difficulty breathing or swallowing, a widespread rash with faintness, or a tight chest. These suggest a severe allergic reaction. Call 10177 from a landline or 112 from a mobile phone. If an adrenaline auto injector has been prescribed, use it without delay and still seek emergency care.
Related pages
Return to the Medicine Categories hub to browse other categories, or follow the ingredient, comparison and guide links above to narrow down your choice.
Common questions
Which allergy medicine should I start with?
Choose by symptom location. Tablets for general symptoms, nasal spray for a blocked nose, drops for itchy eyes.
Why is my nasal spray not working?
Steroid nasal sprays need several days of regular use to reach full effect. Stopping after two days is the most common reason they seem ineffective.
Which antihistamines make you drowsy?
Older ones such as chlorphenamine. Newer options cause much less sedation, though cetirizine affects some people.
Can I take an allergy tablet with a cold remedy?
Check the ingredients first. Many cold remedies already contain an antihistamine, and doubling up is easy.
When should I see a doctor about allergies?
If symptoms persist despite treatment, disrupt sleep or daily life, or if you have ever had swelling or breathing difficulty during a reaction.
Information only and not a substitute for medical advice. Check the medicine leaflet and ask a pharmacist, doctor or qualified healthcare professional for guidance about your own situation.
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