Affiliate Marketing Secrets

The local Chinese markets used to have something called Sea Coconut Cough Syrup, you can see the box here:
http://www.amaluxherbal.com/affiliated/african%20sea%20coconut%20cough%20syrup.htm
Since Fall of 2011 the markets have not had any, nor has anyone I have tried to ask known why, they just say it’s not coming in anymore. Anyone seen a report as to why? This was very effective so I would like to know why my favorite medicine is no longer available.
Thanks!