OptumRx (now using "Optum", at least the third name in the last 4 years) buys their medicines from the cheapest company they can find. This means you are getting them from Canada, India, China or some other country you may never have heard of.
Why is this important?
Lets take Canada as an example. Drugs made by American companies must meet the requirements of the FDA. Drugs produced in Canada but being shipped to the U.S. do not have to be inspected or regulated by either Canadian regulations or the FDA! Caveat emptor!
Now consider the other possible origins of your medications. Do you trust India or China? Do you even know where your medications are being made?
Reviewer is in unhappy mood. This person stated that there is a room for improvement of incompetent employees and deceitful. Please immediately contact the author of this review to discuss medications. OptumRx needs to read this review and look into the issue (if any) according to poster's claims.
Other people also mentioned medications in their reviews. You may find this information helpful for further shopping at OptumRx.