PharmAssistAI

LLM Pharmaceutical Knowledge Assistant

A retrieval-augmented assistant for pharmaceutical questions that grounds Claude responses in FDA drug labels and clinical guidelines, with citation attribution and medical-safety guardrails.

Methods & contributions

• Grounded RAG — semantic chunking of FDA label sections, hybrid search, and MMR re-ranking over ChromaDB.
• Citations — answers attribute back to source label sections with cosine-similarity retrieval.
• Safety — medical guardrails and refusal handling for unsafe or out-of-scope queries.
• Streaming UX — token-streamed responses over WebSocket with rate limiting.

Data flow

query → embed → ChromaDB hybrid search → MMR re-rank
      → Claude (grounded prompt) → streamed answer + citations

Technologies