The Ayurveda Wars

It was later found that the Indian-born patient, also in his 50s, was taking an ayurvedic medicine for arthritis. The medicine was found to have high metal levels, and he8217;d been on the dose for six years.

The incident lead to a survey by Harvard Medical School, the results of which were published in the December 2004 issue of the Journal of American Medical Association. The study associated lead, mercury and arsenic intoxication with ayurvedic medicinal products.

It found one in every five such products had more than acceptable levels of heavy metal. This, said the survey, put users at risk of metal toxicity.

ARE unsafe medical products being labelled 8216;8216;ayurvedic8217;8217; as a marketing gimmick and giving India8217;s ancient system of healing a bad name? Certainly, the Union Health Ministry is taking it seriously enough to order an inquiry. 8216;8216;We are waiting for the report before any decision is taken,8217;8217; says Anbumani Ramadoss, India8217;s health minister.

According to the Harvard researchers, although the health hazards posed by these products vary 8212; depending on the degree of metallic content and the characteristics of the person taking it 8212; a direct link with ayurveda cannot be ruled out.

In interviews, Robert B. Saper, chief investigator of the Harvard study, has spoken of over 50 published accounts since 1978 of heavy metal poisoning in infants, children and adults where use of ayurvedic products was a possible cause. The list includes a study of 12 patients treated for lead toxicity, under the aegis of the Centers for Disease Control and Prevention CDC, Atlanta.

While cautious in rushing to judgement, some doctors in India voice similar concerns. 8216;8216;We come across cases of metal toxicity where the underlying cause is longtime use of ayurvedic medicines,8217;8217; says Dr Ajay Kumar, senior consultant and liver specialist at Delhi8217;s Indraprastha Apollo Hospital.

According to doctors, the toxicity is most damaging to the digestive tract and the liver, and has adverse effects on the nervous system. While arsenic and mercury can cause liver failure, lead tends to affect the nerves, brain and intestines.

8216;8216;The problem with the metals is that even if we take them in very small doses, they can accumulate in the body,8217;8217; says Dr Anil Arora, senior consultant gastroenterologist at Delhi8217;s Ganga Ram Hospital.

In 1996, the Supreme Court had ruled no doctor practising modern medicine could prescribe ayurvedic drugs, as he or she was perceived to lack knowledge of the subject. Even so, many ayurvedic medicines are available over the counter, and require no prescription.

8216;8216;As the medicines don8217;t require a prescription for purchase, nobody knows how long to take them and when to stop,8217;8217; says Dr Kumar, 8216;8216;people use the medicine for a long time without knowing what the proper dosage is.8217;8217;

Even Dr Ashwani Kumar, who holds the office of drug controller general of India, agrees: 8216;8216;You require no sales licence, so anybody can sell the drugs.8217;8217;

The problem may be regulatory. As per Dr C.M. Gulati, former World Health Organisation consultant and editor of the Monthly Index of Medical Sciences, the laws governing ayurveda are extremely amorphous.

For one, there8217;s no scientific proof of efficacy. While allopathic drugs have to establish their efficacy and safety through trials, this is not required for ayurvedic drugs. The remedies have only to be listed in a 8216;8216;classical ayurvedic text8217;8217;.

There are 57 such formulations. Newer formulations come under the category of 8216;8216;Patent and Proprietary Drugs8217;8217; and can be made only by licensed manufacturers. 8216;8216;But no trials are required for new drugs,8217;8217; says Dr Gulati, 8216;8216;any mention of the plant, in any text, for a particular disease is considered to be safe.8217;8217;

Ayurvedic preparations are never tested before coming to shop shelves, neither do they require any certification to get there, points out Dr Gulati. Anybody can manufacture ayurvedic preparations provided he has a licence from a state-level drug controller. The manufacturer can sell his ayurvedic preparation throughout India.

Another problem relates to lack of standardisation and quality control. Each manufacturer obtains his raw material and plant inputs from varied sources. 8216;8216;We know what 500 mg of allopathic medicine contains,8217;8217; says a doctor, 8216;8216;but different plants grown in different areas vary in their constitution of various elements.8217;8217;

Many manufacturers don8217;t bother with separation of the active ingredient in the plant. As such, the whole plant or plant part may be used in the making of the ayurvedic tablet.

Finally, there are no strict regulations for labelling and packaging, requirements of inserts and explaining side-effects, if any. 8216;8216;Nobody knows what is present in the drugs,8217;8217; says Dr Gulati, 8216;8216;even if this is listed, the language isn8217;t comprehensive.8217;8217;

THE war between practitioners of allopathy and ayurveda is not new. Both systems of medicine have their believers and that8217;s fair enough. Indeed, India is justifiably proud of it8217;s traditional knowledge and heritage in the science of cure, of which ayurveda is a key parameter.

Yet what some fear is that quack theories of ayurveda are being deployed to produce medicines that bear fancy brand names but may just be a health hazard. The reputation of India8217;s ancient wisdom probably needs to be protected by tighter rules. Ayurveda needs governance.