Repatha can be left unrefrigerated for up to 30 days at room temperature between 68°F to 77°F (20°C to 25°C) as long as it is kept in its original box and is not kept somewhere that gets hotter than 77°F (25°C), for example, a car glove box. This makes it easier to take your medicine with you when you’re on the go. Do not put Repatha back in the refrigerator once you have taken it out.