SINGAPORE – Two products – one marketed for erectile dysfunction and the other for weight loss – have been found to contain high levels of powerful medicinal ingredients that can cause serious adverse effects, which is why the public has advised to stop buying and consuming them.

On Wednesday April 27, the Health Sciences Authority (HSA) issued an advisory for people to avoid AK-II Phenomenal King and Premium Pro S Flash which were being sold online. He said the products can cause strokes, heart attacks and other life-threatening conditions.

AK-II Phenomenal King contains more than 60 times the usual prescribed dose of tadalafil, a prescription drug used to treat erectile dysfunction.

The product was marketed online for sexual enhancement, claiming to be “free of animal element, free of stimulants, free of side effects”.

HSA said: “Improper use of tadalafil is dangerous and may increase the risk of serious side effects, including heart attack, stroke, palpitations, irregular heartbeat, and priapism (painful and extremely long erections ).”

Tadalafil may also pose serious risks for people with heart problems, as it can cause life-threatening low blood pressure in those taking heart medications, especially those containing nitrates.

HSA tested the Premium Pro S Flash weight loss product after receiving feedback from a consumer who experienced rapid heart rate, insomnia and nausea after using it.

He revealed that the product contained high levels of sibutramine, a prescription-only weight-loss drug that has been banned in Singapore since 2010 because it increases the risk of heart attack and stroke.

The HSA said continued consumption of the product could lead to serious health consequences, including heart problems and central nervous system disorders such as psychosis and hallucinations.

He added that a consumer experienced an extremely rapid heart rate and became unconscious in 2019 after consuming the drug. She was resuscitated and required a defibrillator implant to help her heart function.

Premium Pro S Flash was advertised as a slimming product containing natural ingredients such as red ginseng, red sage, wild yam and as a new version of Flash Slim. Flash Slim was a harmful product that HSA alerted the public to in March last year after it was found to contain sibutramine.

Premium Pro S Flash and AK-II Phenomenal King have been sold on local e-commerce sites such as Carousell, Qoo10, Lazada and Shopee, as well as social media platforms such as Facebook. HSA said it worked with platform administrators to remove the ads and issued warnings to sellers.

Consumers are advised to stop taking the products immediately and seek medical advice if they feel unwell or have health concerns.

The public is also reminded to be wary of products that produce quick effects or carry exaggerated claims as they may contain potent ingredients that may be harmful.

HSA said: “Use caution when purchasing such products online, as you cannot know for sure where and how these products were made and whether they have been adulterated with harmful ingredients.”

HSA has stated that all vendors and vendors must immediately stop selling AK-II Phenomenal King and Premium Pro S Flash.

He added that he will not hesitate to take tough enforcement action against anyone selling or supplying products found to be adulterated with potent medicinal ingredients. Sellers and suppliers of both products can be jailed for up to two years and fined up to $10,000.