Even pills such as thyroid medications or birth control pills might look fine after being in the heat, the critical molecules inside can be degraded. If you worried that your medication isn't working after being in the heat, contact your pharmacy or your physician, Ren advised. To safely store medications, Ren suggested:Remove your medications from direct sunlight. Never leave medications unattended in a vehicle. SOURCE: Baylor Medicine, news release, July 22, 2024What This Means for YouWhen temperatures soar, some medications can become ineffective.