Health warning: "Herbal Viagra"
15 May 2006
Health warning issued under Section 98 of the Medicines Act 1981
Acting Director-General of Health, Debbie Chin, says people may be putting their health at risk by taking so-called herbal products which actually contain undeclared prescription medicines.
Four different products imported from Asia, being sold as herbal medicines, have tested positive for erectile dysfunction and weight loss prescription medicines following routine investigations by the Ministry of Health Medicines Safety Authority, Medsafe.
“It is a breach of the Medicines Act 1981 to sell or supply herbal products which contain undeclared prescription medicines. There is a real potential for harm to occur when prescription medicines are used by consumers without a prescription, because of the absence of any medical supervision,” Mrs Chin says.
“If people are in doubt about the contents of any herbal product they are taking for a health condition, they should seek advice from a health professional.”
Medsafe investigators located the four products imported from Asia through a retail outlet’s advertisement for “herbal Viagra”.
The investigation also uncovered a quantity of medicines labelled as containing prescription medicine, which were not approved for supply in New Zealand.
Testing of the products Meng Rong and an unnamed tablet with markings ‘VG’ showed that they contained the prescription medicine sildenafil, prescribed for the treatment of erectile dysfunction.
The herbal product Yixinjiaonang contained the prescription medicine tadalafil, also prescribed as an erectile dysfunction treatment.
“Sildenafil and tadalafil are known to interfere with some heart medications and their use could be fatal to some individuals,” Mrs Chin says.
Tests on the fourth product, Reduce Weight, showed that it contained the prescription medicine sibutramine used for the treatment of some overweight (obese) patients.
“Sibutramine can cause increased blood pressure and heart rate and cannot safely be taken by a range of people, including those with glaucoma, mental illness and severe liver or kidney problems. It should not be used in combination with other medicines such as some antidepressants and migraine treatments,” Mrs Chin says.
"Consumers should immediately stop taking these products and seek medical advice from their doctor if they are taking other medicines, felt unwell after taking the products, or if they felt unwell after they stopped taking the products."
Medsafe investigations are continuing and a prosecution case is being considered in relation to the alleged distributor. All known stocks of these four herbal products have been seized.
Breaches of the medicines laws are taken very seriously, especially where patient and consumer safety is put at risk.
“We are concerned about the continuing numbers of so-called herbal medicines found to contain undeclared prescription medicines. Medsafe is actively investigating the sale and distribution of these types of products with a view to taking regulatory action against individuals or companies found to be in breach of the law,” Mrs Chin says.
To see photographs of the products please refer to the Medsafe website:
Questions and Answers:
What are the products?
The product Meng Rong which was labelled in Chinese and the tablets marked ‘VG’ have been found to contain the prescription medicine sildenafil. Viagra is the only brand of sildenafil approved for sale in New Zealand and is used for managing erectile dysfunction. Sildenafil is known to interfere with some heart medication and could be fatal to some individuals.
The product Yixinjiaonang has been found to contain the prescription medicine tadalafil. Cialis is the only brand of tadalafil approved for sale in New Zealand and is used for treating erectile dysfunction. Tadalafil is known to interfere with some heart medication and could be fatal to some individuals. The products are labelled in Chinese language.
The product Reduce Weight has been found to contain the prescription medicine sibutramine. Reductil is the only brand of sibutramine approved for sale in New Zealand and is used for managing overweight (obese) patients who have not been able to lose weight using a low calorie diet and exercise. The product is labelled in Chinese language.
Have these products been removed from
The distributor of these four herbal products has been required to immediately cease supplying them. Stocks have been seized.
The products detected so far appear to have been sold through an herbal product retailer. The products appear to have originated from China or from a country where the Chinese language is used to label medicinal products.
If a consumer is taking one of these
products what should they do?
Consumers are being warned to immediately stop taking these products and seek medical advice from their doctor if they are taking other medicines, have felt unwell since taking the products, or if they have become unwell after having stopped taking them.
There is no reliable information about how many people have taken these products.
Adverse reactions to these products or to any herbal product should be reported to the Centre for Adverse Reactions Monitoring: www.carm.otago.ac.nz/.
Consumers can also report any concerns to Medsafe: www.medsafe.govt.nz
Where can I find
more information about Reductil, Viagra and Cialis and their
active ingredients and side effects?
Consumers seeking general information about Reductil, Viagra and Cialis and their active ingredients sibutramine, sildenafil and tadalafil can access the Consumer Medication information on the Medsafe website by typing the trade name of the product into the search engine at: www.medsafe.govt.nz/search
Important advice to
Under the food and medicine legislation, sponsors, distributors and importers are required to list all active ingredients on the packaging, and to include the strength of each active ingredient.
Distributors, importers and sellers are responsible for ensuring that the products they import or sell do not contain any prescription medicines. It may, for instance, be prudent to test products prior to distribution. It is illegal to sell or supply prescription medicines if the purchaser has no prescription from a registered medical practitioner.
On conviction, the maximum penalty for an individual who sells a medicine without first having it registered through the regulatory process administered by Medsafe is $20,000 or up to six months in prison.
On conviction, the maximum penalty for a body corporate which sells a medicine without first having it registered through the regulatory process administered by Medsafe is $100,000.