Research Animals

Welfare of Animals Used in Drug Testing

Drug development requires extensive animal testing; welfare improvements include refined protocols, validated alternatives, and pain management requirements.

Key Facts

Drug development typically requires rodent, dog, and primate toxicology testing
The LD50 test has been replaced by more humane limit-dose protocols
Pain and distress endpoints allow early termination when suffering occurs
Organoids and organ-on-chip models are replacing some animal toxicology tests
ICH guidelines for pharmaceutical testing incorporate the 3Rs framework

Welfare Considerations

Drug safety testing remains an area of significant animal use, but welfare has improved substantially through endpoint refinement, alternative method development, and mandatory pain management. Continued investment in validated alternatives is the welfare priority.

What You Can Do

Support funding for organ-on-chip and organoid research alternatives
Advocate for the 3Rs to be core requirements in drug approval processes
Donate to organizations developing non-animal toxicology testing methods
Encourage pharmaceutical companies to publish their animal use reduction targets