Winners Don't Use Drugs (or Biocells) is a secret achievement/trophy in the A Criminal Past expansion for Deus Ex: Mankind Divided. It is awarded for successfully completing the DLC without taking the Fixer's pill and without using the Altered Biocell.
To complete this achievement, it is necessary to refuse the Fixer's pill (which restores access to Jensen's augmentations) whenever it is offered to Jensen. There are two occasions when the pill is offered: early in the mission when Jensen first meets the Fixer in the prison yard, and later in the mission when Jensen meets the Fixer in the Infirmary.
The achievement also requires that the player never use the Altered Biocell at any time during the DLC. The Altered Biocell is an item obtained through an optional mission objective that also restores access to Jensen's augmentations.
Consequently, completion of this achievement requires completing the DLC without ever being able to use any of Jensen's augmentations (and thus, without being able to hack terminals or perform takedowns).