I've been on HU, 500/day + extra 500 on M/W/F for four years. Next hemo appt in a couple weeks. Suggestions for questions I can ask about long-term HU side effects? Thanks!

P.S., Dad had ET also. He had foot ulcer that I think was likely a side-effect, but he was on very high HU doses, maybe up to 2,000 mg/day because platelets were well over 1,000.