SINGAPORE - Illegal sexual enhancement drugs worth more than $700,000 have been seized in Geylang by the Health Sciences Authority (HSA), in the largest seizure in five years.

With the support of the police, HSA uncovered about 300,000 units of the drugs in a private residential apartment in Lorong 32 Geylang last Friday (Sept 22), said the authority in a statement on Wednesday (Sept 27).

HSA said it was alerted by the Immigration and Checkpoints Authority to a parcel believed to contain a large assortment of illegal health products, and traced it to its intended recipient, a 26-year-old Chinese man.

The man was apprehended outside the apartment, and led HSA officers to his rented room in the building where more illegal health products were uncovered.

Another man was found in the room, and both men are assisting HSA with investigations into the import of illegal health products, said the statement.

HSA said it takes a serious stand against illegal activities that would harm public health and will take strong enforcement action against those involved in the sale and supply of such products.

It noted that anyone who is convicted of importing and/or supplying illegal health products may be imprisoned for up to three years and/or fined up to $100,000.

HSA also added that buying health products from dubious sources such as street peddlers comes with dangers.

"These products may be illegal, counterfeit or substandard, and may contain undeclared, potent ingredients which can potentially cause serious adverse reactions when consumed," it said.

Members of the public can report any illegal activity involving sexual enhancement products to the Enforcement Branch of HSA on 68663485 during office hours from Monday to Friday, or e-mail hsa_is@hsa.gov.sg.