Caffeine vs Modafinil for focus
Short answer: For focus, more users report improvement with Modafinil — 84% of 454 reports, versus 79% of 368 for Caffeine.
Caffeine has 680 meta-analyses and 2,072 randomized trials on PubMed; Modafinil has 155 and 297.
Based on 1,607 reports about Caffeine and 1,116 about Modafinil. Not medical advice.
| Caffeine Substance | Modafinil Medication | |
|---|---|---|
| User score | 49 | 45 |
| Verdict | Mixed | Mixed |
| Positive of reports that state an outcome | 42% | 48% |
| Reports | 1,607 | 1,116 |
| Research | AResearch: Strong | AResearch: Strong |
| Meta-analyses / RCTs | 680 / 2,072 | 155 / 297 |
| Mainly used for | ||
| Weight loss % reporting improvement | 90% (10) | 100% (5) |
| Appetite % reporting improvement | 67% (6) | 40% (15) |
| Focus % reporting improvement | 79% (368) | 84% (454) |
| Energy % reporting improvement | 78% (540) | 91% (307) |
| Sleep % reporting improvement | 14% (112) | 19% (75) |
| Anxiety % reporting improvement | 16% (210) | 26% (73) |
| Mood % reporting improvement | 73% (110) | 62% (90) |
| Memory % reporting improvement | 53% (19) | 71% (21) |
| Performance % reporting improvement | 91% (35) | 88% (17) |
| Pain & inflammation % reporting improvement | 40% (5) | — |
| Digestion % reporting improvement | 29% (7) | — |
| Libido % reporting improvement | 0% (2) | 33% (9) |
| Hormones % reporting improvement | 25% (4) | — |
| Heart & lipids % reporting improvement | 8% (12) | 9% (11) |
| Skin & hair % reporting improvement | — | 50% (2) |
| Common side effects | jitteriness, anxiety, insomnia, headache | insomnia, anxiety, headache, tolerance |
| Typical dose reported | 100-150 mg / daily | as needed |
To avoid reductions in total sleep time, coffee (107 mg per 250 mL) should be consumed at least 8.8 h prior to bedtime and a standard serve of pre-workout supplement (217.5 mg) should be consumed at least 13.2 h prior to bedtime. The results of the present study provide evidence-based guidance for the appropriate consumption of caffeine to mitigate the deleterious effects on sleep.
Sleep Med Rev, 2023 ↗“Personally, I feel and function much better if I keep my caffeine intake very low to zero.”
Our findings represent the most comprehensive available evidence base to inform patients, families, clinicians, guideline developers, and policymakers on the choice of ADHD medications across age groups. Taking into account both efficacy and safety, evidence from this meta-analysis supports methylphenidate in children and adolescents, and amphetamines in adults, as preferred first-choice medications for the short-term treatment of ADHD. New research should be funded urgently to assess long-term effects of these drugs.
Lancet Psychiatry, 2018 ↗“It did make me focused and alert. I was working two jobs at the time and needed every ounce of energy I could muster.”
Related comparisons
Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate