AT least 60 per cent of the patients who attend Chemistworks Wetherill Park have diabetes, pharmacist Nancy El-Miski said.
"The majority of our patients come here to treat their diabetes and we offer them a lot of services," she said.
"We do a lot of med checks where the patient brings in their script and I go through the medications with them, so they can understand what they're taking, why they're taking it, how to check their sugars and what the numbers mean, as well as what the right foods are for a diabetic."
She said one of the most important checks a diabetic patient needed to do was their feet.
"This is because a person with diabetes has a lack of blood circulation going there so they can have a wound and not feel it," Ms El-Miski said.
"They also need to get their eyes checked regularly and monitor their blood pressure and cholesterol because that will increase their chances of having a stroke.
"We also provide free blood sugar and blood pressure checks in-store."
The store also has multilingual pharmacists so they can communicate to their patients who who can't speak English.
Another pharmacist, Joshua Wason, said it was crucial for patients to keep their diabetes under control.
"It can lead to cardiovascular diseases and it can also make you infertile if it's uncontrolled," he said.
In pregnant women uncontrolled diabetes can harm the foetus.