Narcolepsy causes extreme tiredness, which can be effectively treated with Modalert. Nootrashop.Com sells this drug. Its active ingredient is modafinil. The medicine works by addressing the problem that leads to excessive daytime drowsiness and shift work sleep disturbance (inability to fall asleep and remain asleep within the allotted sleeping hours in those working rotational or night shifts).
https://nootrashop.com/product/modalert-uk/