HSA updates on products found overseas that contain potent ingredients (February 2024)

The Health Sciences Authority (HSA) would like to update the public on products that have been found and reported by overseas regulators in February 2024 to contain potent ingredients which are not allowed in these products and may cause side effects. This information is provided to increase awareness on safety issues of such products found overseas, which may impact the local population. Please refer to Annex A and Annex B for the list of products and the possible side effects of the potent ingredients. Please refer to the pdf document for images of the products.

HSA’s Advisory

2        Members of the public are advised to:

• Consult a doctor if you have consumed any of the products and are feeling unwell.
• Avoid buying any of the products when abroad.
• Exercise caution when purchasing health products online or from sources (either local or overseas) which you may not be familiar with, even if well-meaning friends or relatives have recommended them. You cannot be certain where and how these products were made. They may be illegal, counterfeit or substandard, and may contain potent ingredients which can harm your health. If buying health products online, we encourage you to buy them from websites with an established retail presence in Singapore.
• Be wary of products that promise quick and miraculous results or carry exaggerated claims like “100% safe”, “no side effects” or “scientifically proven”. Consumers should also be cautious of products that produce unexpected quick recovery of medical conditions.
• Consult your doctor or pharmacist if you need help for the management of your acute and chronic medical symptoms and conditions (e.g. diabetes, hypertension, eczema).

3          Additionally, members of the public are encouraged to visit https://www.hsa.gov.sg/consumer-safety/ to learn more about the dangers of buying health products from dubious sources.

4          Members of the public who come across the sale and supply of these products in Singapore may contact HSA's Enforcement Branch at Tel: 6866 3485 during office hours (Monday to Friday) or email: hsa_is@hsa.gov.sg.

Annex A

List of Products

Note: There may be different versions or variants of the products listed below. You are advised to consult your doctor or pharmacist if you are unsure of any health product you intend to use, or if you need help for your acute and chronic medical symptoms and conditions

 

Annex B

The possible side effects of the potent ingredients

Phosphodiesterase Type 5 (PDE-5) inhibitors

This class of medicine includes avanafil, carbodenafil, sildenafil, tadalafil, vardenafil and their derivatives. These medicines can cause serious side effects such as strokes, heart attacks, decreased or loss of vision and hearing and priapism (painful and exceedingly long erections). If priapism is not treated immediately, it may lead to permanent impotence. PDE-5 inhibitors are also not suitable for patients with medical conditions such as certain heart-related problems or who are on heart medications such as nitrates. Deaths of patients found to be using sildenafil while on nitrates have been reported overseas.

 

Levodopa

Levodopa or L-Dopa is a prescription medicine used in the treatment of Parkinson’s Disease and should be used under medical supervision. Levodopa may potentially interact with medicines used to treat high blood pressure. Side effects of levodopa may include low blood pressure, irregular heart rate and breathing abnormalities.

 

Prasterone

Prasterone, also known as Dehydroepiandrosterone (DHEA), is a hormone that could increase the risk of prostate, breast, ovarian and other hormone-sensitive cancers. Side effects may include serious cardiovascular disease, changes in fertility and sperm production, hair loss, voice deepening, insulin resistance, changes in menstrual pattern, liver dysfunction, abdominal pain, and high blood pressure.

 

Yohimbe/Yohimbine

Yohimbine is a potent medicinal ingredient derived from yohimbe, a bark extract. Side effects associated with yohimbe or yohimbine include insomnia, anxiety, palpitations (sensation of heart pounding, racing or skipped beats), sweating and blurred vision. Overdosage can cause low blood pressure, rapid heartbeats, seizures, paralysis, and coma. Deaths from overdose have also been reported.

 

Download PDF: HSA Foreign Alert_2024_Feb1895 KB

Published: 6 Mar 2024

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