tren reasons
I believe that the fina cough that is experienced by some users is in the production. I have produced my own tren and never ever had fina cough then again I have used gear for several years as well.
Tren is a highly potent adrogen/anabolic that is very hard on the body, if you are a first time user its like an overdose on your system and it will react harshly with your endocrine system.
Usually after an injection approx 2 hours I feel irratable,jumpy, and just plain aggressive. Now remind you that this is by no means a way to blame tren but thats my bodys own reaction to it, others may have fina cough.
This is developed to put mass on animals that weigh 3xs more than you do and are slaughtered afterwards so the potency can be judged from that.
Why is it not good for the first time user, Its hard on your natural system and it can cause severe cramping if water and magnesium balances are off or insufficient. Also, it requires every other day injections and if improperly rotated and used this will cause the acetate esther to cause severe scarring of tissue in ones body, most injections cause scarring but this esther in particular does it bad to areas of the same witholding.
I am sure that there are more but these are a few that I know for sure is why you should leave tren to those who know the risks and have experience with it, dont play unless you you know what you might end up paying.