Medicines such as insulin, many vaccines and biologics, and a range of lab reagents must be stored between +2 and +8 °C. A pharmacy or medical refrigerator is designed to hold that band evenly, using fan-forced air circulation, precise electronic control, insulated doors that are often lockable, high and low temperature alarms, door-open alarms and, often, a port or built-in logger for monitoring.
A household refrigerator is a poor substitute. It can swing widely, has cold spots near the back wall that may freeze products, warm areas in the door, and no alarms. Food and drink should never share a medical refrigerator. Placement matters too: away from heat sources and direct sun, with clearance for ventilation, and ideally on a protected power supply.
A retail pharmacy in Jaipur might keep insulin, some eye drops and vaccines in a glass-door medical refrigerator behind the counter, with a min-max thermometer read and logged twice daily and a backup plan for long power cuts. Storage conditions for each product should follow the manufacturer's label and applicable regulatory guidance.