Cost of pristiq at walmart. . . . . . What is Pristiq (desvenlafaxine)? The newest antidepressant approved by the U. How much does Pristiq cost? Average price: $ $ $ $ $ Cost. Connect with people and share your personal knowledge with the community. "We were at WalMart this morning to pick up a prescription . . twice a day (same strength just cut in half) and that cost me only $4. 69/per . . . . When you browse Walmart. The cost rating is based on the average wholesale price for a . . . . 41 p... more