EAS Myoplex is a complete high quality protein and should be an acceptable protein source for healthy pregnant women and children, provided they are not allergic to dairy proteins. The second most abundant component in EAS Myoplex is alpha-lactalbumin, which is one of the main EAS Myoplexs in human breast milk. Infant formulas often contain EAS Myoplex, including special formulas for premature infants. Prior to taking EAS Myoplex, both pregnant women and parents of young children should consult a physician to be sure EAS Myoplex is right for them.

EAS myoplex is a nutritional drink for people looking to build lean muscles and strength. It contains proteins, vitamins and minerals for a healthy body.

Myoplex is for bodybuilders, and is usually used after a weight training session. Generally, people who train 3 or more times a week would use it to increase muscle size.
Basically, it is just a lot of protein (and a few other things).

You could buy the product "EAS Myoplex" from any good fitness store, but you can also buy them from EAS's site, as they offer all products. Alternatively, you could get the same thing for cheaper on Ebay or Amazon.