Amazon  -  03/16/2017

the product is everything that I expected it to be.

verified buyer  -  03/13/2017

Good price. Fast shipping.

Marcia  -  02/28/2017

This stuff is great.

verified buyer  -  01/31/2017

I take one 600mg cap twice a day for chronic bronchitis. The capsules seem to keep drug from being absorbed. I have started to poke holes in capsule hoping for better absorption. Just not the same as name brand.

J.  -  01/27/2017

Only use Long Acting, or Extended release Guaifenesin. Ie; 12 hour. Anything less is not effective. Also, blue dye as in Mucinex ER, blocks the effectiveness in many Fibromyalgia patients. This is per Dr. St. Amand.