Buffett Watch

Munger: Valeant Pharmaceuticals turned out to be a 'sewer'

Warren Buffett gives a toss at Berhshire Hathaway annual meeting

Berkshire Hathaway Vice-Chairman Charlie Munger had some harsh words to say about Valeant Pharmaceuticals on Saturday, with Warren Buffett hitting the company's business model as "enormously flawed."

Munger said the much-maligned pharmaceutical turned out to be a "sewer" and those who created it deserved everything they got, after the Sequoia Fund was sued by shareholders for its lofty investments on the firm.

, shareholders claim Sequoia recklessly took a huge stake Valeant, causing more than $2 billion in losses. The Sequoia Fund held a large stake of Berkshire Class-A shares, as of Dec. 31.

Buffett, Berkshire's chairman and CEO, said Saturday that there were warning "patterns" at Valeant that should have been recognized. He added that several people urged them to invest in Valeant, but the business model is flawed and management lacked integrity.

Buffett also said Sequoia's investment in Valeant was "a very unfortunate period where a manager got overly entranced with a business."

Valeant declined CNBC's request for comment.

Valeant has been under pressure from regulators and investors alike. Recently, Michael Pearson left his position as Valeant's chief executive.

— CNBC's Alex Crippen and Reuters contributed to this report.