No NOAEL assigned; lymphoid tissues target organs (lymphocyte depletion, decreased cellularity); chimp hypotension dose-limiting at 0.12 ug/kg
“Following daily administration of the surrogate for 4 or 13 weeks in mice, lymphoid tissues were the target organs of toxicity with decreased spleen weights and decreased cellularity or germinal center development observed in the lymph nodes, Peyer’s patches, and spleen.”
✓ VerifiedFDA pharmacology/toxicology review, p. 12Source ↗