All Countdown pharmacies, including the new Whanganui store, are offering cut price prescriptions of $2.50 instead of the standard $5 price.
"I think there's just a need," Yu said. "There's a need for pharmacies. Especially in Whanganui. There's a lot of elderly people and people on medication, there's just a need.
"It's our model of business - one stop business - more convenience."
Yu said they'd been quite busy with customers who were pleased to see the pharmacy up in operation.
"They like it. Also it's cost-effective - $2.50 - but [we] don't charge after-hours fares it's the same price on the weekend."
The store was working on hiring one more technician and one more pharmacist to be able to stay open longer.