“…Therefore, there is a great need for a reliable, acceptable, safe and easily-administered method for contraception for breastfeeding women. A GnRH agonist such as buserelin presents the advantage that, being a peptide, it is without the metabolic effects observed with the synthetic steroids [4,5]. When it is administered daily by nasal spray for long periods of time, it can successfully prevent ovulation [6][7][8][9][10].…”