October 21, 2019

Theratechnologies Provides Details About R&D Day Webcast

THERATECHNOLOGIES PROVIDES DETAILS ABOUT R&D DAY WEBCAST

Montreal, Canada – October 21, 2019 – Theratechnologies Inc. (“Theratechnologies”or the “Company”) (NASDAQ: THTX) (TSX: TH), a commercial-stage pharmaceutical company addressing unmet medical needs for people with orphan medical conditions, including those living with HIV, is pleased to provide details about the webcast of its R&D Day.

Webcast Details

A webcast will be held Wednesday, October 23, 2019 at 12:00 p.m. (ET). Media and other interested individuals are invited to participate in the call on a “listen-only” basis. The audio and slide presentations will be accessible at https://edge.media- server.com/mmc/p/9i7fts2d. A replay of the webcast will be available on our website on the same day starting at 5:00 p.m.(ET).