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Health & fitness · wakefulness drug

Modafinil

Hacker Approved

Recommended for focus and wakefulness with few side effects and no apparent tolerance; critics say it is intense at useful doses and stops working well as a performance booster.

Summarized from 28 comments.

Recommended for focus and wakefulness with few side effects and no apparent tolerance; critics say it is intense at useful doses and stops working well as a performance booster.

recommend
16
criticize
6
months recommended
8 of 13
median owned, 3 owners said
10 years

Why people love it

  • Strong focus and wakefulness effect · 3

    For me it was a much stronger focus effect than caffeine and a much weaker effect than amphetamine.

    Oct 2026 · comment

    100mg modafinil makes me a LOT more productive

    Feb 2026 · comment

    it's extremely effective at keeping you awake

    Jul 2026 · comment
  • Few or no side effects · 2

    it was incredible for the most part and had zero side-effects

    Aug 2026 · comment

    effectively zero side effects

    Nov 2025 · comment
  • Effective paired with amitriptyline · 3

    a combination of weak ligands like Modafinil and Amitriptyline can really help with dysautonomia

    Apr 2026 · comment

    The Modafinil / Amitryptiline is probably the most effective treatment I've tried

    Jun 2026 · comment

    I landed on Modafinil in the morning and Amitryptiline at night

    Apr 2026 · comment

What people warn about

  • Weaker stimulation than amphetamine or caffeine · 2

    For me it was a much stronger focus effect than caffeine and a much weaker effect than amphetamine.

    Oct 2026 · comment

    it's not even on the level of caffeine for stimulation

    Oct 2026 · comment

Every quote

The 21 most detailed of 28 comments. Each links to the original.

  1. For me it was a much stronger focus effect than caffeine and a much weaker effect than amphetamine.

    Mixed · Oct 2026 · in “The Other Epidemic: Trying to get off benzodiazepines”

  2. a combination of weak ligands like Modafinil and Amitriptyline can really help with dysautonomia

    Recommends · Apr 2026 · in “A Collection of Chronic Medical Conditions Common in Autistic and ADHD Adults [pdf]”

  3. The Modafinil / Amitryptiline is probably the most effective treatment I've tried

    Recommends · Jun 2026 · in “GLP-1 drugs led to weight loss and reversed depression-like behavior in mice”

  4. I landed on Modafinil in the morning and Amitryptiline at night

    Recommends · Apr 2026 · in “Ah, peptides. where to begin?”

  5. it was incredible for the most part and had zero side-effects

    Mixed · Aug 2026 · in “Reverse engineering my ADHD test”

  6. 100mg modafinil makes me a LOT more productive

    Recommends · Feb 2026 · in “I Analyzed Every Nootropic Study on PubMed”

  7. it's extremely effective at keeping you awake

    Recommends · Jul 2026 · in “How the Terrorist Group Boko Haram Uses Frontier AI”

  8. effectively zero side effects

    Recommends · Nov 2025 · in “Aldous Huxley predicts Adderall and champions alternative therapies”

  9. it's not even on the level of caffeine for stimulation

    Criticizes · Oct 2026 · in “The Other Epidemic: Trying to get off benzodiazepines”

  10. Made a menu bar app you may find useful for MacBook sleep prevention, even when the lid is closed

    Recommends · May 2026 · in “Work with Codex from Anywhere”

  11. it worked well when I took it but it was intense at the useful dose

    Mixed · Jul 2026 · in “It's getting harder to focus every day”

  12. stops being effective as a performance enhancer pretty quickly

    Mixed · Oct 2026 · in “The Other Epidemic: Trying to get off benzodiazepines”

  13. they seem better to me, but maybe long-term use is different

    Recommends · Nov 2025 · in “Aldous Huxley predicts Adderall and champions alternative therapies”

  14. Modafinil has been a lifesaver for me for over a decade

    Recommends · Aug 2026 · in “The brain may be about to have its Ozempic moment”

  15. which is what Modafinil does

    Recommends · May 2026 · in “Show HN: Modafinil - Let agents continue running while MacBook lid is closed”

  16. no apparent tolerance build

    Mixed · Jun 2026 · in “GLP-1 drugs led to weight loss and reversed depression-like behavior in mice”

  17. they last too long to really work with a normal 16/8 sleep cycle and the other stimmy effects can detract from things other than focus work

    Criticizes · Nov 2025 · in “Aldous Huxley predicts Adderall and champions alternative therapies”

  18. we have some modafinil for that but now that you're developing early-stage dementia know that it's progressive.

    Criticizes · Nov 2025 · in “Ticker: Don't die of heart disease”

  19. Studies show Modafinil isn't effective in ADHD adults.

    Criticizes · Sep 2026 · in “Reverse engineering my ADHD test”

  20. Taking it made me not want to take it again.

    Criticizes · Dec 2025 · in “Why are 38 percent of Stanford students saying they're disabled?”

  21. comes at a huge cost physically, mentally

    Criticizes · May 2026 · in “Creatine raise brain energy levels and slow Alzheimer's cognitive decline by 30%”

Counts from 1,795,640 Hacker News comments, Nov 2025 to Nov 2026. How we count · Report a mistake