Betanoid contains betamethasone, a potent corticosteroid taken by mouth or given by injection. It is prescribed for inflammatory and allergic conditions — severe asthma and allergy, croup in children, autoimmune conditions and skin disorders. It comes as a syrup, tablets and an injection, and is a prescription medicine.

What is Betanoid?

Betanoid is Schedule 4 in South Africa — prescription-only:

Product	Contains
Betanoid syrup	Betamethasone 0.6 mg/5 ml
Betanoid tablet	Betamethasone 0.5 mg
Betanoid injection	Betamethasone 4 mg/ml

This is a systemic corticosteroid — it acts throughout the body, unlike betamethasone creams such as Clomaderm, which act on the skin only. The two are quite different in what they do and what they risk.

Betamethasone is a synthetic version of cortisol, the body’s own steroid hormone. It suppresses the immune and inflammatory response broadly: reducing inflammatory chemicals, calming immune cells, and reducing swelling and fluid leakage from blood vessels.

Betamethasone is one of the more potent corticosteroids — considerably stronger, milligram for milligram, than prednisone. It is also long-acting, which affects how it is dosed.

The syrup exists mainly for children, and is widely used in South Africa for croup — the barking cough and noisy breathing caused by viral swelling of the airway. A single dose of steroid reduces that swelling substantially and is genuinely effective, often preventing a hospital admission. That is a good use of a strong medicine for a short time.

The key distinction with steroids is short course versus long term. A few days of steroid is generally safe and often transformative. Weeks or months brings a substantial set of effects — described below — and requires the dose to be reduced gradually rather than stopped.

What is Betanoid commonly used for?

Croup in children, usually as a single dose or very short course — a common and well-established use.
Severe allergic reactions, including after initial emergency treatment.
Severe asthma exacerbations.
Allergic conditions not controlled by antihistamines.
Inflammatory and autoimmune conditions, including rheumatoid arthritis flares, lupus and vasculitis.
Severe skin conditions such as eczema flares, dermatitis and drug reactions.
Inflammatory bowel disease flares.
Reducing swelling in certain conditions.
Before preterm birth, given to the mother by injection to mature the baby’s lungs — a specialist obstetric use.

Steroids suppress inflammation; they do not treat infection. They can mask the signs of an infection while allowing it to spread, which is a central reason for the cautions below.

How Betanoid fits into this medicine category

Group	Examples	Notes
Systemic corticosteroids	Betamethasone (Betanoid), prednisone, dexamethasone	Powerful, broad anti-inflammatory
Topical corticosteroids	Hydrocortisone, betamethasone cream	Skin only; far less systemic effect
Inhaled corticosteroids	Budesonide, fluticasone	Asthma preventers; local airway effect
NSAIDs	Ibuprofen, naproxen	Milder anti-inflammatory; different risks
Simple analgesics	Paracetamol	Pain and fever; no anti-inflammatory effect
Antihistamines	Cetirizine, promethazine	Allergic symptoms

See the pain, inflammation and musculoskeletal medicines hub.

What to check before using Betanoid

Take it in the morning, with or after food, unless told otherwise. Morning dosing matches the body’s natural cortisol rhythm and causes less sleep disturbance.

Do not stop a longer course abruptly. This is the most important instruction with any systemic steroid. Taking one for more than about three weeks suppresses the adrenal glands’ own cortisol production, and stopping suddenly can cause an adrenal crisis — severe weakness, vomiting, low blood pressure and collapse, which can be life-threatening. Longer courses are tapered.

Carry a steroid card if you are on a longer course, and tell any doctor, dentist or emergency staff that you take steroids. If you become seriously ill, have an accident or need surgery, the dose usually needs increasing temporarily — the body cannot mount its own stress response.

Tell your doctor or pharmacist if you:

Have any infection, including chickenpox, shingles, tuberculosis or a fungal infection. Steroids suppress immunity, and this matters especially in South Africa, where latent TB is common and can reactivate.
Have not had chickenpox, or are exposed to chickenpox or measles while taking it. Seek medical advice promptly — these can be severe in someone on steroids.
Have diabetes. Steroids raise blood sugar, often substantially, and diabetes treatment usually needs adjusting.
Have high blood pressure, heart failure, or osteoporosis.
Have a stomach ulcer, or take an anti-inflammatory.
Have glaucoma or cataracts, or a family history of glaucoma.
Have epilepsy, liver or kidney disease, or an underactive thyroid.
Have mental health conditions, including depression or previous steroid-related mood changes.
Are pregnant or breastfeeding.
Are giving it to a child. Growth is monitored on longer courses.
Take anti-epileptics, rifampicin, warfarin, diuretics or live vaccines — live vaccines are generally avoided during significant steroid treatment.

Possible cautions and when to ask a pharmacist or doctor

Short courses commonly cause increased appetite, difficulty sleeping, mood changes or restlessness, indigestion, and raised blood sugar. These usually settle after stopping.

Longer courses carry a wider set of effects: weight gain and a rounded face, thinning skin and easy bruising, muscle weakness, osteoporosis, cataracts and glaucoma, raised blood pressure, diabetes, increased infections, delayed wound healing, and adrenal suppression.

Seek medical attention urgently if you develop:

Signs of infection — fever, sore throat, cough, or feeling generally unwell. Steroids can mask these, so a lower threshold applies.
Severe abdominal pain, or black, tarry stools.
Marked mood change, confusion, agitation, or thoughts of self-harm. Steroid-induced psychiatric effects are recognised, can occur even on short courses, and need prompt attention.
Blurred vision or eye pain.
Severe weakness, vomiting, dizziness or collapse, particularly after stopping — possible adrenal crisis. This is an emergency.
Marked thirst, frequent urination and blurred vision — raised blood sugar.
Swelling of the ankles, or breathlessness.
Exposure to chickenpox or measles, if you have not had them.
In a child, worsening breathing, drooling, or difficulty swallowing — croup that is not settling needs urgent reassessment.

Do not share it or use a leftover course, and do not give an adult tablet to a child.

Related medicine guides

Frequently asked questions

What is Betanoid used for? Inflammatory and allergic conditions — severe allergy and asthma, croup in children, autoimmune conditions and severe skin disorders. It contains betamethasone, a corticosteroid.

What is Betanoid syrup used for in toddlers? Most commonly croup — the barking cough and noisy breathing from viral airway swelling. A short course reduces the swelling and is genuinely effective. It is prescription-only.

Is it an antibiotic? No. It suppresses inflammation and has no effect on infection — in fact it can mask infection while allowing it to spread.

How long can it be taken? Short courses of a few days are usual and generally safe. Longer courses bring more effects and must be reduced gradually rather than stopped.

Can I stop it suddenly? A few days can usually be stopped. Anything longer than about three weeks must be tapered, or adrenal crisis can occur.

Does it affect blood sugar? Yes, often substantially. If you have diabetes, monitor more closely — treatment frequently needs adjusting during a steroid course.

Is it the same as betamethasone cream? No. The cream acts on skin only. Betanoid acts throughout the body, with a very different set of cautions.

What if my child is exposed to chickenpox? Seek medical advice promptly. Chickenpox and measles can be severe in someone taking steroids.

What Is Betanoid Used For?