It's like Modafinil, except it last a shorter amount of time like 4 hours and it's slightly stronger than Modafinil.
I took Hydrafinil and was awake for 4 hours.
It's like Modafinil, except it last a shorter amount of time like 4 hours and it's slightly stronger than Modafinil.
I took Hydrafinil and was awake for 4 hours.