well, if you mean your load is smaller and more watery thats because your prostate has shrunk, not really a side effect rather than what the drug does to your body. If you experience no other sides i would write that one off and not worry too much. I just recently got back on finasteride in the past week, so far so good, im prob gonna take .75 sunday, tues, thurs.
I suffered sides like not being able to maintain my erection as long and decreased sensitivity, these completely passed after 2 weeks off the drug and i went back to normal. I also am aware that these sides are due to raised estrogen, probably due to me being overweight, so i lost about 20 pounds since my last run and wanna give it another shot now, fingers crossed.
good luck to you bro, so far so good!
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btw if he was a FULLHEAD then rogaine and propecia wouldnt have changed his temple points, he caught it early like 90% of us didnt, seems like alot of people get butthurt about that.