The Supreme Court of India's controversial decision to deny a patent for Novartis' cancer drug Glivec has put the country's approach to intellectual property law in the spotlight. As the debate around this ruling continues, Merck (NYSE:MRK) is the latest big pharma to face patent headwinds in India. Its top-selling diabetes drug Januvia is now facing generic competition from Glenmark Pharma, and Merck is suing for patent infringement.

Is this something that investors should worry about today, or is this potentially a long-term threat that they should keep a close eye on? Health care analyst Max Macaluso discusses this case in the following video.

Max Macaluso, Ph.D. has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.