Propecia and Dialysis?

I am a dialysis patient and I have genetic hair loss, could I take propecia spite of my medical condition?

I am not your doctor, so I can not advise you about which prescription drugs you can take with your condition, but I can tell you what the literature says about this, via Drugs.com:

“No dosage adjustment is necessary in patients with renal insufficiency. In patients with chronic renal impairment, with creatinine clearances ranging from 9.0 to 55 mL/min, AUC, maximum plasma concentration, half-life, and protein binding after a single dose of 14C-Finasteride were similar to values obtained in healthy volunteers. Urinary excretion of metabolites was decreased in patients with renal impairment.”

Finasteride is metabolized by the liver and excreted in the feces normally. Nevertheless, your doctor is the best one to ask.