What is effect of fertility drugs for females giving and getting donor eggs on them and the embryo?

Very litle. Women coming to donate eggs are usually 21-28 and have amh levels that see if they have a large number of eggs. If they are carefully screened and have conservative ovulatory medications, they should do very well. We limit the number of times women are allowed to donate so they will have sufficient number of eggs for themselves when they attempt pregnancy in the future.