The four were arrested on Tuesday and are suspected of aggravated business money laundering and aggravated money laundering.
The illegal sales are said to have taken place via various websites and led to revenue of several million kronor.
The Medical Products Agency has repeatedly warned of the risks associated with purchasing prescription medicines from online sites, which Eklund at the Swedish Economic Crime Agency also emphasizes.
It's also about how it should be dosed, she says.
