RETRIEVAL-AUGMENTED | MHRA DRUG SAFETY

Grounded Medical RAG

Ask about UK drug-safety advice and see the exact source passages behind every answer - grounded, cited, and refusing to guess when the evidence isn't there.

143 MHRA articles 81% top-1 retrieval 100% faithful (64/64) 16/16 adversarial refused
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The examples below are curated with cached answers (instant, no key). The interactive app runs the real pipeline live on any question you type.
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How it is measured

Self-authored 64-question gold set (+16 adversarial), each verified against a source passage, judged by a stronger model (Claude Sonnet) than the generator.

63 / 64
Answer correctness
64 / 64
Faithfulness (no hallucination)
16 / 16
Refusal on adversarial (0 false)
81%
Top-1 retrieval (recall@1)
Honest negatives (measured, then rejected): header-aware chunking underperformed the fixed baseline; a cross-encoder reranker added ~15x latency with no end-to-end gain, so it was cut.
Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright / MHRA.
Champion: hybrid retrieval (dense + BM25) | bge-small-en-v1.5 | Claude Haiku | no reranker. NOT medical advice.