Question: Can you donate blood if you take Propecia?
Answer: Hi Tony. If you take finasteride 1mg – whether Propecia, Aindeem or any other brand – and wish to donate blood you must stop taking these tablets at least one week beforehand. This is the length of time it takes for the medication to leave your system.
Assuming there are no complications, you can start taking your tablets again, as usual, once you have donated blood.
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