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(Reporter Zhou Xuejin and Zhao Mengmeng from People's Daily Health Client) In hot weather, not only people will suffer from heat stroke, but medicines will also become ineffective due to "heat stroke". On August 16, "A diabetic patient in Wuhan was ineffective due to injection heatinsulinThe news that the treatment failed and caused diabetic ketoacidosis has attracted attention. Wu Huajun, chief pharmacist of Wuhan Third Hospital, told the reporter of People's Daily Health Client that insulin is easy to decompose at high temperatures and will become completely ineffective after 2 hours of sunlight exposure.

According to Jimu News, 42-year-old Zhang Yuan (pseudonym) was diagnosed withdiabetesAfter that, put the insulin pen into the bag you carry with you every day and inject insulin before each meal to controlblood sugarHalf a month ago, Zhang Yuan suddenly felt weak all over and even had blurred consciousness. He thought it was heat stroke, but after being sent to the hospital for examination, it was found that his blood sugar was as high as 26.8 mmol/L, and he was diagnosed with diabetic ketoacidosis.

After asking, the doctor learned that Zhang Yuan put the insulin pen in his bag every day and put it on the passenger seat after getting in the car. Wuhan has been experiencing a continuous high temperature recently, and the car was exposed to direct sunlight, which made the insulin ineffective. The recent insulin was equivalent to being injected in vain, and blood sugar could not be controlled, which led tocomplication。

"Insulin preparations cannot be placed in the sun or stored in high temperature environments in summer (over 30°C), nor can they be frozen, because low temperatures will cause them to lose their biological activity, and they cannot be used after thawing." Wu Huajun introduced that if the room temperature in summer is higher than 30°C, the opened insulin packages can be placed in the refrigerator for storage. To prevent the liquid in the pen cartridge from inhaling air due to thermal expansion and contraction, resulting in inaccurate injection doses, the needle of the opened insulin can be removed and placed in an insulation bag first, and then placed together in the refrigerator's cold storage room.

For patients who need to carry such drugs with them, Wu Huajun suggested that they can wrap the drugs with a wet towel and put them in a thermos bag/cup with a built-in ice pack. "When you get off the car, don't leave the insulin in the car. When you take a plane, you should carry it with you, not check it in, as the temperature in the cargo hold is often very high," Wu Huajun said.

Jin Pengfei, chief pharmacist of the Pharmacy Department of Beijing Hospital and member of the National Pharmacopoeia Committee, told the People's Daily Health Client reporter that the medicines that need to be stored at low temperatures are mainly protein and polypeptide drugs, such as insulin preparations and analogs, monoclonal antibodies and other biological products, vaccines, etc.

"If the medicine is not stored at the prescribed temperature, it may cause harm to the body and is not recommended to be taken. Patients should pay attention to storing it at the proper temperature. The expiration date of the medicine after opening is not the same as the expiration date on the medicine packaging, especially bottled oral liquids or tablets. In addition, if the medicine is damp, it cannot be taken even after drying in the sun." Jin Pengfei reminded.