Kalmegh usually refers to Andrographis paniculata. Products vary in factors such as plant part, extract and andrographolide content. Traditional use or an amount stated on the packaging does not automatically establish a benefit for every advertised use.
Cold studies have limitations
A review of studies found evidence suggesting relief of certain symptoms of acute respiratory infections. However, the included studies used different preparations and often had weak methodology. This establishes neither an effect for every product nor a general recommendation for self-treatment. Breathing difficulties, marked deterioration or other serious symptoms need medical assessment.
Severe allergies are an important safety consideration
Australia's medicines regulator, the TGA, reports severe allergic reactions, including anaphylaxis, associated with medicines containing Andrographis. It has published updated safety assessments and recalls of certain products. These regulatory measures apply to Australia; the safety warning is also relevant to an evidence-based assessment of the plant.
Seek emergency medical help immediately for breathing difficulties, sudden swelling of the tongue or throat, collapse or altered consciousness. Do not wait on the assumption that this is a normal adjustment reaction. Stop the preparation if a new reaction occurs and keep the product name and ingredients available for assessment.
Before use
Have a healthcare professional assess existing medical conditions, medications, pregnancy, breastfeeding or use in children beforehand. Good tolerance in the past does not guarantee tolerance with every later dose. Do not replace prescribed treatments with Kalmegh.
Frequently asked questions
Does a result for one extract apply to every tea?
No. Composition and use must be comparable.
Can a plant product also cause a severe allergy?
Yes. Reports involving Andrographis are an important safety warning.
Does traditional use prove safety?
No. Current data and the individual's situation remain decisive.