TWO more men have died after taking illegal sex drugs, bringing the number of fatalities so far to four.

Since the last update on April 25, the Health Sciences Authority said there have been 22 new cases of patients having serious adverse reactions of hypoglycaemia or low blood sugar to the drugs.

Two of the 22 patients are now in a coma.

The HSA said in a statement on Friday that the two men - a Chinese man in his 20s and a Malay man in his 50s - who died in the past week, had been in a coma after taking the drugs.

There are now 40 confirmed cases of men falling seriously ill from the illegal health products and another 87 suspected cases, where the direct link to a product cannot be established due to patients' reluctance to provide information.

Ms Chan Cheng Leng, Assistant Director, Pharmacovigilance at HSA said: 'Consumers should not gamble with their health by buying and consuming these products.

'All the seven patients who slipped into coma after consuming the contaminated products were seriously ill, and four of them have now passed away. The risk of using such products is not worth it. It should never be assumed that what happened to someone else will not happen to you.'

HSA on Friday reminded the public that illegal health products from dubious sources are dangerous and can kill.

'There is no guarantee of their safety. These products are manufactured illegally with no quality control and may contain variable amounts of ingredients, wrong ingredients or toxic substances. The contents can also vary significantly from batch to batch,' it warned.

Consuming illegal health products can cause unexpected and dangerous effects such as death, coma, seizure, stroke and worsening of existing medical conditions.

HSA also urged the public to give feedback and information on suspected illegal activities involving such products.