Omega Pharma, a Belgian healthcare products distributor, is considering selling itself nearly three years after it was taken private by its founder, the news agency Bloomberg said, citing sources.

A sale of the Nazareth, Belgium-based company could earn its owners more than $4 billion, Bloomberg added.

Omega, which sells prescription-free medicines, healthcare products and over-the-counter items such as wart treatments and sun tan lotions, is believed to have hired investment bank Morgan Stanley to handle the sale, which could start as early as this month.

Founder and CEO Marc Coucke took the company private in 2011 with his $1.1 billion takeover offer for the maker of painkiller Solpadeine.