Exhibit 99.1 Investor Contacts: Media Contact: Solebury Strategic Communications Kevin Wiggins ir@bauschhealth.com corporate.communications@bauschhealth.com (877) 281-6642 (toll free) (908) 541-3785 BAUSCH HEALTH ANNOUNCES FOURTH-QUARTER AND FULL-YEAR 2023 RESULTS • Fourth-Quarter revenues of $2.41 billion, up 10% on a Reported basis and up 4% on an Organic1 basis • Full-Year revenues of $8.76 billion, up 8% on a Reported basis and 7% on an Organic1 basis • Full-Year revenue growth in Salix, International, ...