Shoppers Drug Mart is asking all Alberta women to check their current birth control medication after human error resulted in expired medication being shipped to stores.

About 100 customers in Alberta, B.C., Saskatchewan, and Manitoba who bought Alesse-21 are affected.

Officials say the medication expired in September 2014.

According to the report, the following Alberta Shoppers Drug Mart locations received the expired product:

STORE NAME

#

STREET

CITY

PHONE

AIRDRIE

505

MAIN STREET

AIRDRIE

403-948-5858

BRAESIDE SHOPPING CENTRE

1919B

SOUTHLAND DRIVE SW

CALGARY

403-253-1477

LOWER MOUNT ROYAL

815

17TH AVE SW, UNIT 100

CALGARY

403-244-9769

BIG M DRUG MART

3012

17TH AVE. S.E., UNIT #5

CALGARY

403-248-4757

MARLBOROUGH MALL

3800

MEMORIAL DR N.E., UNIT 1231

CALGARY

403-272-2848

MARKET MALL

3625

SHAGANAPPI TRAIL N.W.

CALGARY

403-288-0111

CROWFOOT

28

CROWFOOT TERRACE NW

CALGARY

403-241-8818

SETON SHOPPING CENTRE

19489

SETON CRESCENT SE, UNIT 106

CALGARY

403-279-7726

MARDA LOOP

2067

33RD AVENUE SW

CALGARY

403-685-6807

STADIUM

1941

UXBRIDGE DRIVE NW, UNIT 23

CALGARY

403-289-0208

CHESTERMERE STATION

300

196 CHESTERMERE STATION WAY

CHESTERMERE

403-207-1875

COCHRANE

120

5TH AVENUE WEST, UNIT 100

COCHRANE

403-932-3568

NAMAO

16504

95 STREET NE

EDMONTON

780-456-5557

MAGRATH HEIGHTS

14135

23 AVENUE NW

EDMONTON

780-436-5135

NAMEO CENTRE

15969

97TH STREET NW

EDMONTON

780-473-2813

MACTAGGART

5970

MULLEN WAY NW

EDMONTON

780-435-1782

EDMONTON CITY CENTRE EAST

62

EDMONTON CITY CENTRE EAST

EDMONTON

780-426-7642

SOUTHPOINT SC

9360

SOUTHFORT DRIVE

FORT SASKATCHEWAN

780-998-2236

WAPITI CENTRE

10720

78TH AVENUE

GRANDE PRAIRIE

780-814-9028

LLOYD MALL

5211

44TH STREET, UNIT 200

LLOYDMINSTER

780-875-2031

MEDICINE HAT MALL

3292

DUNMORE RD. S.E.

MEDICINE HAT

403-526-1426

UPTOWNE OLDS

4607

50TH AVENUE

OLDS

403-556-3326

BOWER PLACE MALL

4900

28TH STREET, UNIT 1043

RED DEER

403-343-3355

VILLAGE MALL

6320

50TH AVE, UNIT 1

RED DEER

403-348-8164

SUMMERWOOD SHOPPING CENTRE

20

4005 CLOVER BAR ROAD

SHERWOOD PARK

780-449-3319

The company says that by the time they realized the problem, they called every customer they could that they knew to be affected by the recall.

Officials are also offering to replace the expired product and provide further information and counselling if needed.