Body weight at each week of AAS treatment (left panel) and on test days 0, 1, 3, 7, 10, 14, 21 and 28 for rats treated with vehicle (VEH), testosterone (T), dihydrotestosterone (DHT), or stanozolol (STAN) in Experiment 2. CFA was injected into the hindpaw at week 4 (i.e., test day 0). Each point is the mean ± 1 S.E.M., N = 8–10 rats/group. T-treated rats were significantly lighter than vehicle-treated rats by week 4 and DHT-treated rats were significantly lighter than vehicle groups after week 6 (left panel). Across various test days AAS groups gained less weight than vehicle-treated rats: T-treated rats across all days, DHT-treated rats on test days 14, 21, 28, and STAN-treated rats on day 28 (right panel). *significantly different from vehicle group, p≤0.05.