Erik Flood, 23, was not present when Köping Stars lost to BC Luleå on Monday night.
The reason for this is that he is currently suspended from gambling while his positive test results are investigated.
The decision has been made jointly by the club, the player and Anti-Doping Sweden.
"From the club's side, we clearly distance ourselves from doping, so also in this case.
We now have a dialogue with Anti-Doping about Erik's case where we initially judge it as if Erik has innocently ingested this substance. ", Writes Ståhlmalm who does not want to tell which substance it is about at present.
"The decision has been made in dialogue with Anti Doping Sweden and Erik now has until 2021-12-20 to submit his opinion to the inquiry," Köping writes on its website.