
The first batch of pills was made available in March and was meant to last three months.
But it was cleared out last month as demand was much higher than expected, said a spokesman for American-based manufacturer Janssen, a subsidiary of Johnson & Johnson.
However, the company declined to reveal the exact number of pills sold.
Priligy works by increasing levels of serotonin, a chemical involved in controlling ejaculation.
While it is said to triple the time a man can sustain an erection, it does not cure premature ejaculation.
A pack goes for between S$80 ($187) and S$90 (RM210), which means each pill costs as much as S$30 (RM70). This is comparable to other established sexual enhancement drugs like Viagra, which treats erectile dysfunction.