I have several questions. Is there really a point to taking arginine and horny goat weed at bedtime given that they would be largely processed out of one's system by morning? Also, I am currently taking 5mg cialis per day for BPH. The doctor increased the dose to 10mg for both BPH and ED, but I am concerned about the possible side effect of eye damage and vision loss. Do you have any concerns about that? And last, is there a brand of Horny Goat Weed that I can be sure contains what is supposed to contain? I tried Nature's Bounty brand, 150mg per day but felt absolutely no effect.