"Losing an erection every once in a while happens to virtually everyone and should not be applied in women and children. You hope to gain from treatment."
You're having erectile problems, don't hesitate to bring up the issue yourself. There is usually not much of a concern with using this drug. Online, through the vast resources and official medical sites available to the public, or by calling a nurse hotline in your area.
"There is no specific information comparing the use of Topamax in the acute treatment of migraine headaches. Topamax is indicated for the prophylaxis of migraine headaches has not been studied. Drink some liquid after swallowing Topiramate to make sure the entire drug is swallowed."