Pharma BD Deal Intelligence

Valeant Pharmaceuticals / Salix Pharmaceuticals

2015 · Acquisition/Merger · $15.8B · Complete

A slow-burn deal that landed at the worst possible moment: Valeant paid $15.8B for Salix and its Xifaxan gastrointestinal franchise just as its own debt-fueled roll-up strategy was cresting, leaving the acquisition's promise overshadowed by the acquirer's unraveling.

WRONG BY 49 POINTS
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The coverage arc

Mar 16, 2015 Fortune Bullish

Valeant comes out a winner after upping its Salix bid to $173 per share, beating rival bidder Endo International in the takeover battle for the…

Jan 22, 2016 Wikipedia Neutral

Valeant acquired Salix for $15.8B.

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Valeant acquired Salix for $15.8B.

Key facts

Disease & market context

Irritable Bowel Syndrome with Diarrhea (IBS-D)

$3.5B US GI Specialty Rx Market (2014) · $1.6B Xifaxan Annual Revenue (2015)

Disease Overview

IBS-D is a subtype of irritable bowel syndrome characterized by abdominal pain with predominantly loose/watery stools, affecting an estimated ~8-12 million US adults (roughly one-third of the ~25-45M with IBS overall). Xifaxan (rifaximin), a gut-selective non-systemic antibiotic, is FDA-approved for IBS-D in adults, hepatic encephalopathy (reduction in risk of overt HE recurrence), and travelers' diarrhea caused by non-invasive E. coli in patients >=12 years.

Post-Deal Reality

The Salix acquisition became part of the broader Valeant controversy over pricing practices. Xifaxan remained a strong performer, but Valeant rebranded as Bausch Health in 2018.

Deal timeline

Related deals — scored

DealYearValueOutcome
Valeant Pharmaceuticals / Salix Pharmaceuticals (this deal)2015$15.8B39
UCB SA / Celltech Group plc2004$2.7B92
Johnson & Johnson / Centocor Inc.1999$4.9B92
Takeda Pharmaceutical Company Ltd. / Millennium Pharmaceuticals2003$8.8B82
Bristol-Myers Squibb Company / Celgene Corporation2019$74.0B77
Biogen Idec Inc. / Elan Corporation plc (Tysabri rights)2013$3.2B77
Gilead Sciences Inc. / CymaBay Therapeutics2024$4.4B76

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