Aerosolized drugs are usually designed to be fast acting and are often used in an emergency.
But research hasfoundthat some medications can be damaged by heat without showing any outward signs.
The east coast was somewhat cooler, but millions of people were still underheat warningsin early July.
New research warns of reduced potency in medications that are exposed to high temperatures during shipping.Image: Artem Golub
The heat was part of a worldwide trend that saw global temperature records repeatedly broken.
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