I can find several pills listed with the 57344 imprint, but all of them have two letters and two numbers as well. Example, LL64 on one side, 57344 on other.
I believe your pill is made by AAA Pharmaceutical (all pills with 57344 are listed as such).
They seem to be a small company, if you google 'AAA Pharmaceutical' the summary under their link says;
"AAA Pharmaceutical manufactures generic, over-the-counter, drugs. Product portfolio includes over 40 medications"
Unfortunately their website is "Being Revised" but you can contact them by phone at: (856) 423-2700
http://www.aaapharmaceutical.com