Get your facts straight. Warburg sold the company and it was healthy enough to fetch $8.7B.
You can ignore the enormous risk associated with the Valeant model, but many see it exactly as this article indicates. At some point it will end and you don't want to be holding the stock when it does. The 2 top executives of this company believe they are smarter than all who have come before them.
How can you possibly expect to have organic growth amongst all of this turmoil? What happens when the acquisitions stop and there is no growth generator? This is a short term strategy. I'm not saying you shouldn't invest, but I'd have my finger on the "sell" button.