The Freezermakers squandered a seven-point lead but regrouped in time, holding the Drug Specialists scoreless in the final 2:30.
Thus, Ana finally broke into the win-column following two straight losses while Pharma Quick remained winless in three outings.
"We couldnt make our shots but the key was that we also kept them from making their own shots," said Ana coach Dante Gonzalgo.
Arial Capus scored a game-high 19 points, including 12 in the third quarter where the Freezermakers led by five at 47-42.
Pharma Quick took control at the start, roaring ahead at 17-7 behind the exploits of FEU standout Mico Roldan and former pro Jun Jabar.
But the Freezermakers would close in at 13-17 at the end of the quarter before making their own breakaway.
Montana Jewels fashioned out a come-from-behind 68-63 win over Blu Detergents in the second game. Joey Villar