This is my 5th day on 150mg of Nuvigil. I really havent experienced wakefulness yet. Im still very tired, all day. I tried to not take caffeine but since i have to work i have to have some sort of caffeine to stay awake. The first 2 days of taking it i didnt have caffeine, and i took it on an empty stomach. waited an hour to eat. Ive taken it at different times to see if that would help, pretty early id say. 9am or 10am, and by around 5-7 im a little more awake but not enough to lay down and NOT sleep. I would still be very tired. I suffer from constipation so i dont know if that could be the problem or it will just take longer for me to notice anything? And if so how long? Im still wondering if i should ask my doctor to up it to 250mg
How long does it take Nuvigil to work?
Question posted by berit1991 on 23 May 2014
Last updated on 12 January 2022 by Xmantech
4 Answers
Xmantech
13 Jan 2022
Hello and I just wanted to let you know that I would definitely ask your dr to go up too 250mg. From what you’ve said we’ve got basically the thing going on. I’m on the 250mg and I take it at 10am every morning because I usually work until around 8. It works great and keeps me alert throughout my day. Hope this helps you.
Well crap I just noticed this post is from 2014. Lol well better late than never right. I hope you’re doing much better now though.
Robert S.
FaithDykstra
6 March 2020
I was prescribed Nuvigil for POTS, postural orthostatic Tachycardia syndrome which causes excessive daytime sleepiness. That may be something you want to get tested for it you already have been testing negative for all the other tests. I got a sleep study done w the whole works and it came up negative, my blood was negative and I had no good reason to understand why I was so sleepy. If you want to get tested for POTS go to a neurologist, preferably one from disautonomia internationals website. Best of luck :)
LaurieShay
23 May 2014
Nuvigil should promote wakefulness within the first dose or two. The general max is 225mg, but I have been prescribed as much as 300mgs for hypersomnia. I, too, had a sleep study done with no result of apnea. I believe my problem is from the other medications I take, but there are numerous other reasons you maybe tired besides apnea. Have you had a complete blood work up?
berit1991
24 May 2014
yes, ive had from my thyroid to b12 to anemia types of blood work done and theyve all came back normal
kaismama
23 May 2014
Talk to your dr, It should have worked almost the first day. Are you sleeping at night, quality sleep? How long?
berit1991
23 May 2014
Im usually in bed by around 12am, and i still get up at 11am. So about 11 hours of sleep. I never wake up, but when i get up im still very tired. I had a sleep study done for sleep apnea. Thats all they tested for I guess, and it came back normal. So I dont know what it is, but my doctor said that since Im experiencing excessive day time sleepiness she prescribed me Nuvigil.
Inactive
15 June 2014
For me it started working immediately I loved it til about the fourth day I became spacey alert and plain weird. Now I take 200 mg provigil ( which is now generic) and it works better for me. I need 3 actually. Even though it's generic it was $7 the first few months last month it was $144! Anyway sorry to stray for me it kicked inn in less than an hour I forgot the mg though. I wish you the best:)
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