Merck’s Global Health Innovation Fund (GHIF) is investing up to $17 million in Physicians Interactive, a company that develops digital products for doctors, such as e-sampling and interactive education programs.

The deal, which includes an initial investment of $8.5 million with additional investments of up to $8.5 million contingent upon pre-specified benchmarks, gives Merck’s GHIF a substantial minority stake in Physicians Interactive Holdings and a seat on the firm’s six-member board of directors. Marlborough, MA-based Physicians Interactive is majority-owned by private equity firm Perseus Capital.

Physicians Interactive CEO Donato Tramuto said the investment “will allow us to further expand our internal product development and customer solutions, as well as explore new markets and additional customer segments.”