Conclusion: We found evidence for levodopa positive interaction with coffee, fiber and vitamin C, as well as for the potential beneficial impact of low-fat and protein redistribution diet. Contrastingly, high-protein diet and ferrous sulfate supplements can negatively affect levodopa pharmacokinetics and effectiveness. For other drugs, the data of food impact are scarce. Based on the available limited evidence, all dopamine agonists (bromocriptine, cabergoline, ropinirole), tolcapone, rasagiline, selegiline in tablets, safinamide, amantadine and pimavanserin can be taken with or without a meal. Opicapone
PubMed 34784871 ↗Rasagiline
People mainly take Rasagiline for focus. Based on 8 first-hand reports and 27 meta-analyses & systematic reviews in the medical literature. Ranked #1445 of 1,974 overall.
Of reports that state an outcome, 0% are positive.
What Rasagiline does, according to users
Of the people who reported each effect, the share who said it got better.
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
3+ meta-analyses or systematic reviews and 10+ randomized controlled trials in humans. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: Our analysis demonstrates that the most frequently reported adverse effects in trials did not occur more often with rasagiline than placebo. In conclusion, rasagiline is a well-tolerated MAO-B inhibitor that may help to achieve the desired level of clinical benefit in Parkinson's disease.
PubMed 23634791 ↗Conclusion: Furthermore, the delayed-start study design did not establish with certainty the neuroprotective effect of rasagiline. It is advisable to carry out comparative trials with other drugs used in Parkinson's disease.
PubMed 23735235 ↗Conclusion: 0.5 to 1 mg/day rasagiline in addition to levodopa is a safe and well-tolerated combination therapy for individuals with Parkinson's disease.
PubMed 25358603 ↗Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
Reported side effects
How often each side effect came up across all reports.
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“I've heard reports that the newer rasagiline is like selegiline but better”
“L-dopa Magnesium Memantine (twice daily) Selegine or rasageline.”
“Segeline or rasageline. You can get a 3 month supply for $200. If you take a quarter of a pill will last you a year.”
Other options for focus
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate