Highly diluted remedies are usually harmless in themselves. The real risks are delaying effective treatment, and products that are not what they seem. This guide covers both.
Reviewed September 2026 · For information, not diagnosis
The Australian review of homeopathy warned that people who choose it “may put their health at risk if they reject or delay treatments for which there is good evidence”. The danger is greatest where effective treatment exists and time matters: asthma, where stopping preventer inhalers can lead to severe attacks; thyroid disease in pregnancy; a strep throat left untreated, which can damage the heart; and cancers, where delay allows spread.
A simple rule covers most of the danger: use homeopathy, if you choose it, in addition to effective care — not in place of it, and never for anything serious, long-term or potentially serious on its own.
Do not stop or reduce these without the doctor who prescribed them:
| Medicine | What can happen if it is stopped |
|---|---|
| Asthma preventer inhalers | Severe, sometimes fatal, asthma attacks |
| Levothyroxine, antithyroid tablets | Thyroid symptoms return; risk to an unborn baby |
| Insulin and diabetes tablets | Very high blood sugar, ketoacidosis |
| Epilepsy medicines | Seizures, including prolonged ones |
| Blood pressure, heart and blood-thinning medicines | Stroke, heart attack, clots |
| Steroid tablets taken for weeks or more | Adrenal crisis (collapse) if stopped suddenly |
| Antidepressants, benzodiazepines, sleeping tablets | Withdrawal symptoms; seizures with benzodiazepines |
| Antibiotics for strep throat, TB and other infections | Complications, relapse and drug resistance |
| HIV and cancer treatment | Disease progression that may not be reversible |
Tell your homeopath about every medicine you take, and tell your doctor about every remedy, tincture and supplement.
Each condition page on this site starts with the warning signs specific to that condition.
Some practitioners offer homeopathic “nosodes” or preventive remedies (“homoeoprophylaxis”) against infections. These are not vaccines: they have not been shown to produce immunity or to prevent disease, and a 2022 Cochrane review found no consistent benefit of homeopathic products in preventing children’s respiratory infections. During the COVID-19 pandemic, preventive remedies such as Arsenicum album 30C were widely distributed; there is no reliable evidence that they prevented infection.
Keep every vaccine on your child’s schedule, and your own, up to date.
A properly made high potency (such as 30C or 200C) is essentially sugar, water or alcohol. Problems arise with the other kinds of product:
A warning sign: a “homeopathic” medicine that works dramatically and fast for eczema, asthma, arthritis or allergies may contain a hidden steroid. Stopping it suddenly can cause a severe flare or, after long use, adrenal crisis. Tell a doctor and bring the product with you.
For advice on finding a well-qualified practitioner who works safely alongside your doctors, see Choosing a homeopath.
If you would like to try homeopathy, see a registered homeopathic doctor (BHMS or MD (Hom)) who will take a full history, knows your other treatment and will tell you when you need a medical specialist. Take your prescriptions and recent test reports with you.
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This page is general information, reviewed September 2026. It is not a diagnosis and does not replace a consultation. Do not stop or change a prescribed medicine without talking to the doctor who prescribed it. In an emergency in India call 112 (ambulance 108).