i have been taking ultra corrdyceps for the past 3 months now.a runner told me about it and said it was amazing, so i figured i would give it a shot.. and so far my stamina, and energy in the gym are with out a doubt stronger. i was wondering if anyone else has used this product and has any more info on it. like how long you can be on it, and are there any sides, because for this product to work for me i had to almost triple the dosage and it took about 3 weeks to see any results. thanks for any info...