Brief Answer: details below Detailed Answer: Hi, Thanks for writing to us. Minoxidil is a pregnancy category C drug ie should be used in pregnancy when clearly needed. Minoxidil may get secreted in breast milk too, so should be avoided in nursing females. As such all the minoxidil studies have been done for oral minoxidil which is also use in hypertensive patients. Not much studies are done with topical minoxidil solution. Though chances of systemic absorption and any side effect whatsoever with topical minoxidil are less likely but still we preferably avoid advising it in pregnant or lactating females. Topical minoxidil is not absorbed significantly to pose any problem to your IVF treatment. So as such you may use it now but once you are pregnant should discontinue its use. Hope this helped. Take care

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