Will I be fertile if I take finasteride?

Many men have successfully had children who were on finasteride. There is some concern, although not proven statistically, that the sperm count might actually drop while on the drug. We have seen sterility reports on the drug dutasteride, another more effective blocker, although this is apparently rare. What is proven is that when men take finasteride, the ejaculate during an orgasm does have a reduced volume in about 20% of men on the drug and the semen is more watery.