Ophelia, a digital provider of medication-assisted treatment (MAT) for opioid use disorder (OUD), has raised a $50 million Series B investment led by Tiger Global.

The round includes funding from Menlo Ventures, General Catalyst, Refactor Capital, 640 Oxford Ventures, Interplay Ventures; PillPack founder Elliot Cohen; and Good Friends, the fund launched by the founders of Warby Parker, Harry's, and Allbirds.