Pharmacology in space: pharmacotherapy

Area of Science:

• Space pharmacology
• Aerospace medicine
• Drug pharmacokinetics

Background:

• Space missions require careful consideration of pharmacological kits and drug use for astronaut health.
• Physiological changes in weightlessness can significantly alter how drugs are processed by the body.
• Existing data on drug efficacy and safety in space is limited and requires further investigation.

Purpose of the Study:

• To review current knowledge on pharmacological kits and drug administration in spaceflight.
• To identify the need for specific drugs and research areas for adapting medication to the space environment.
• To highlight the challenges and preliminary findings regarding drug pharmacokinetics and microbial resistance in weightlessness.

Main Methods:

• Review of existing information on space pharmacology and drug use.
• Analysis of preliminary inflight data on drug monitoring (salivary samples).
• In vitro studies on the antibacterial activity of antibiotics under simulated space conditions.

Main Results:

• Weightlessness affects drug pharmacokinetics, altering concentration and time course (e.g., acetaminophen).
• Changes in bacterial resistance to antibiotics were observed in vitro (e.g., E. coli, S. aureus).
• Lack of effective countermeasures for bone demineralization and side effects of space motion sickness drugs noted.

Conclusions:

• Further research, including simulation and inflight studies, is crucial to understand and manage drug pharmacokinetics in space.
• The observed changes in microbial resistance necessitate further investigation into astronaut infection treatment.
• Developing appropriate medical kits requires balancing risks and benefits of pharmacological agents for space missions.