In the following video, Motley Fool health-care analyst Max Macaluso takes a question from a Fool reader, who writes, "How do you think the initial sales of Arena Pharmaceuticals' (NASDAQ:ARNA) Belviq will be?"

Max Macaluso, Ph.D. and The Motley Fool have no position in any 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.