Introduction: Inflatable penile prosthesis (IPP) placement on active anticoagulation (AC) is controversial. Techniques utilized to decrease complications include use of malleable implant, partial inflation of IPP for hemostasis, and placement of drain; however risk and benefits must be weighed. We sought to assess outcomes of IPP in men on AC in a multi-institutional study. Methods: Data from 3 high-volume implant centers was retrospectively analyzed. Demographics, comorbidities, secondary procedures, drain placement/output, and complications were recorded. Aspirin was excluded as it is not routinely held. Center 1 utilizes a penoscrotal approach without drain placement, center 2 a penoscrotal approach with drain placement (removal when output <50 mL/8 hours), and center 3 an infra-pubic approach with drain for 3 days. Results: 202 patients were continued on AC throughout surgery. 112 patients were on clopidogrel, 35 warfarin, 38 apixaban, 1 enoxaparin, 15 rivaroxaban, and 1 on combination therapy with clopidogrel and enoxaparin. AC requirement included peripheral vascular disease (55%), CHF (11%), cardiac stents (11.6%), DVT/PE/history of thrombosis (7%), atrial fibrillation (11%), cardiac valves (2.2%), stroke (1.3%), and preventive (0.9%). Nine patients on AC (3.98%) experienced complications including 4 significant events (1.9%): 1 major retropubic bleed requiring transfusion, 3 IPP infections and 5 minor events: 3 minor hematomas, 1 minor wound dehiscence and 1 CT negative stroke event. Drain outputs for center 3 averaged 113 ml, 81 ml, and 30 ml of output per day respectively with a total average output average of 223 ml and experienced no hematomas nor infections. Drain output for center 2 averaged 121 ml with the majority or patients having the drain for only one day. Drain output was significantly higher than historical non-AC controls (121 vs. 72 ml p=.001) but there was no difference in hematoma rate. Three hematomas and 1 infection occurred in this group. AC type, revision surgery, scrotoplasty, or reservoir technique did not affect outcomes nor drainage (P>.05). Complication rate (IPP infection and hematoma rate) where not different when compared to large cohorts from respective institutions. Conclusions: In high-volume implant centers, major complication rate of 1.9% occurred in IPP patients on AC. Although IPP is feasible in this patient population, drain for 3 days and submuscular reservoir placement may be indicated. In most, elective IPP surgery should be delayed until it is safe to discontinue anticoagulation. SOURCE OF Funding: None