I will say that many people blame clomid for sides during post cycle therapy (pct) (acne, mood shifts, etc), but actually it's indirect. it's very well established that clomid is far superior to nolva in acute use at increasing gonadotropins. The studies where nolva is equal or better are ONLY after 3-6 months of consecutive use. All time points prior to 3 months show clomid being superior, and by a great deal in most studies. Clearly, 3 months isn't an ideal post cycle therapy (pct) duration. the reason one experiences sides with clomid is due to the rapid fluxes in hormone levels. the acute rise in FSH and LH, and therefore subsequent test production. Rapid shifts in hormones like this are akin to puberty, menstruation, menopause, etc. All of which bring with them similar symptoms/sides due to rapid fluxes in hormone levels. Nolva doesn't elicit these sides because it doesn't increase gonadotropins nearly as efficiently, so the rise in test is much more slow and gradual. I'll gladly exchange the sides (indicative of efficient recovery) for a more rapid recovery of HPTA function, as this decreases the duration during which your body is in an androgen-deprived state and increases you ability to keep hard-earned gains.