Study Warns of Medication Expiry Risks for Mars Missions

Over half of drugs stored for space travel could lose effectiveness before astronauts return, posing significant health challenges.

Researchers analyzed 91 medications used on the ISS, finding 54 with a shelf life of 36 months or less.
Around 60% of these medications would expire before a Mars mission concludes; under conservative estimates, this rises to 98%.
The harsh space environment, including radiation, may further reduce drug potency and stability.
Potential solutions include extending drug expiration dates, selecting longer-lasting medications, or increasing onboard supplies.
Astronauts on the ISS benefit from regular resupply missions, a luxury not available for Mars missions.