Neoloridin contains desloratadine, a non-sedating antihistamine. It is used for hay fever and allergic rhinitis — sneezing, runny nose, itchy eyes — and for hives and itchy allergic skin reactions. It comes as 2.5 mg and 5 mg tablets and is taken once daily.
What is Neoloridin?
Neoloridin is Schedule 2 in South Africa, available from a pharmacist:
| Product | Contains |
|---|---|
| Neoloridin 2.5 | Desloratadine 2.5 mg |
| Neoloridin | Desloratadine 5 mg |
Desloratadine is also sold in South Africa as Loralex and other generics.
Desloratadine is a non-sedating antihistamine. It blocks histamine H1 receptors, reducing the sneezing, itching, runny nose and watery eyes histamine produces during an allergic reaction.
What makes desloratadine distinctive is where it comes from. It is the active metabolite of loratadine — the substance the body converts loratadine into. Taking desloratadine skips that conversion step.
Two practical consequences follow:
- It works at a lower dose. 5 mg of desloratadine is broadly comparable to 10 mg of loratadine, because none is lost to conversion.
- It does not depend on liver conversion, which in principle makes its effect more consistent between individuals, since people vary in how efficiently they convert loratadine.
Whether that translates into a meaningful clinical advantage is genuinely debated. For most people loratadine works perfectly well, and desloratadine is not dramatically better — but it is a reasonable option, particularly if loratadine has not suited you.
Desloratadine is described as having some anti-inflammatory activity beyond histamine blocking, which may contribute in allergic rhinitis, though the practical significance is modest.
The 2.5 mg strength is the paediatric one, used in children at doses set by age and weight.
What is Neoloridin commonly used for?
- Seasonal allergic rhinitis (hay fever) — sneezing, runny nose, itchy nose and throat, watery itchy eyes.
- Perennial allergic rhinitis, from dust mites, pets or mould.
- Hives (urticaria) and itchy allergic skin reactions.
- Chronic urticaria, sometimes at higher doses under medical supervision.
- Itching from insect bites.
- Allergic conjunctivitis.
- Allergy symptoms in children, at the lower strength.
Antihistamines work better taken before or early in an exposure than once symptoms are well established. For seasonal allergy, starting before the season and taking it regularly works better than reaching for it after a bad day.
What it does not do:
- It does not clear a blocked nose well, since congestion comes largely from leukotrienes rather than histamine.
- It does not treat colds or flu, which are viral.
- It does not treat asthma.
For persistent allergic rhinitis, a steroid nasal spray is the most effective treatment — better than any antihistamine tablet, and particularly better for congestion. Tablets are often used alongside a spray.
How Neoloridin fits into this medicine category
| Group | Examples | Notes |
|---|---|---|
| Non-sedating antihistamines | Desloratadine (Neoloridin), loratadine, cetirizine, fexofenadine | Allergy without significant sedation |
| Sedating antihistamines | Chlorphenamine, promethazine | Allergy and itch; marked drowsiness |
| Steroid nasal sprays | Fluticasone, budesonide | Most effective for persistent allergic rhinitis |
| Leukotriene antagonists | Montelukast (Glemolev) | Congestion, and allergy with asthma |
| Decongestants | Pseudoephedrine (Decofed) | Blocked nose; short-term only |
| Mast cell stabilisers | Sodium cromoglicate | Preventive, eye and nasal |
Among the non-sedating antihistamines, fexofenadine sedates least, cetirizine tends to act fastest, and loratadine and desloratadine sit between. People genuinely respond differently, so if one does not suit you, another may — which is a reasonable thing to try before concluding antihistamines do not work for you. See the allergy, cold, flu and respiratory medicines hub.
What to check before using Neoloridin
Take it once daily, at around the same time. It can be taken with or without food.
Do not take more than one antihistamine at a time without advice, including combination cold and flu products, which frequently contain one.
Speak to a pharmacist or doctor first if you:
- Have kidney disease, which may mean a lower dose or less frequent use.
- Have liver disease.
- Have epilepsy, or a history of seizures.
- Are elderly.
- Are pregnant or breastfeeding.
- Are giving it to a child. The 2.5 mg strength is the paediatric one, and syrups exist — ask a pharmacist about the right amount for age and weight rather than splitting adult tablets.
- Are due to have allergy skin testing. Antihistamines suppress the reaction and must usually be stopped several days beforehand — mention it in advance, or the test may need repeating.
- Have phenylketonuria, if the product contains aspartame.
Alcohol does not usually interact significantly with desloratadine, but see how the combination affects you.
Possible cautions and when to ask a pharmacist or doctor
Desloratadine is generally very well tolerated. Common effects are headache, dry mouth, tiredness and occasionally drowsiness.
Seek medical attention urgently if you develop:
- Swelling of the face, lips, tongue or throat, or difficulty breathing or swallowing — signs of a serious allergic reaction. Call emergency services.
- A widespread rash with feeling unwell, or blistering or peeling skin.
- A fast or irregular heartbeat, or fainting.
- Yellowing of the eyes or skin.
- A seizure.
See a doctor rather than continuing self-treatment if:
- Symptoms persist despite regular treatment, or you need it every day for months.
- Hives are persistent, recurrent, or last more than six weeks — chronic urticaria needs assessment and often responds to higher doses under supervision.
- Hives come with swelling of the lips, tongue or throat, or breathing difficulty — this is an emergency.
- You have wheezing, chest tightness or breathlessness, as asthma commonly accompanies allergic rhinitis.
- Symptoms follow a food, medicine or insect sting. An antihistamine tablet is not adequate treatment for anaphylaxis.
- You have facial pain, thick discoloured discharge or fever, suggesting sinus infection.
- One-sided nasal blockage or nosebleeds, which need examination.
If you have been prescribed an adrenaline auto-injector, carry it. An antihistamine does not replace it.
Related medicine guides
- Browse Allergy, Cold, Flu & Respiratory Medicines guides
- Read: Austell Cetirizine used for
- Read: Rhineton used for
Frequently asked questions
What is Neoloridin 5 mg used for? Hay fever and allergic rhinitis, hives, and itchy allergic skin reactions. Each tablet contains desloratadine 5 mg.
What is Neoloridin 2.5 used for? The lower strength, generally the paediatric one, used in children at doses set by age and weight.
Is desloratadine the same as loratadine? Not identical. Desloratadine is the active substance the body converts loratadine into, so it works at a lower dose without needing that conversion.
Is it better than loratadine? Not dramatically. For most people loratadine works well. Desloratadine is a reasonable alternative, particularly if loratadine has not suited you.
Does it make you drowsy? Usually not — it is classed as non-sedating. A minority of people do feel sleepy, so see how it affects you before driving.
Will it clear a blocked nose? Not well. Congestion comes largely from leukotrienes rather than histamine. A steroid nasal spray is more effective.
Can I give it to my child? Yes, at the correct strength and dose for age and weight. Ask a pharmacist rather than splitting adult tablets.
Can I take it every day? Many people do through an allergy season. Needing it continuously for months is worth discussing with a doctor.