What are the side effects of L-Dopa?

Users most often report toxicity, anxiety, psychosis, intensity described, anhedonia. Side effects came up 8 times across 90 reports.

User reports can't establish safety. PubMed lists 47 meta-analyses and 286 randomized trials. Talk to a doctor or pharmacist, especially if you take other medication.

L-Dopa side effects

Across 90 first-hand reports, people mentioned a side effect 8 times (about 9 per 100 reports). The most common: toxicity, anxiety, psychosis. User reports show what people notice — they can't tell you whether L-Dopa is safe for you.

Reported side effects

toxicity1

anxiety1

psychosis1

intensity described1

anhedonia1

dopamine downregulation1

dyskinesia1

peripheral dopamine1

In their own words

“L-Dopa is making me a bit anxious but sure helps me with depression and focus.”

MixedRead the discussion ↗

“I've taken both L-Dopa and 5-HTP before and they didn't do shit.”

Didn't helpRead the discussion ↗

“I have previously tried combining it with l-dopa, but the nightmare that is trying to take a reasonable dose of l-dopa without peripheral-dopamine related side effects is another, very long story.”

MixedRead the discussion ↗

“I would discourage the use of L-DOPA, it's long term effects can be quite deleterious to your goals; chronic administration tends to result in irreversible and substantial side-effects”

MixedRead the discussion ↗

“Within 60 minutes, I wanted to rip my wifes panties off... My ADHD is completely gone... I was afraid to take it again this morning.”

MixedRead the discussion ↗

“I wouldn't mess around with L-Dopa unless you know what you are doing. Just asking for trouble with that one, IMO.”

Didn't helpRead the discussion ↗

Is L-Dopa safe? What the research covers

AResearch: Strong47 meta-analyses · 286 randomized trials on PubMed

Curr Vasc Pharmacol · 2006

Hyperhomocysteinemia in movement disorders: Current evidence and hypotheses

Conclusion: Finally, several cases of homocystinuria associated with dystonia, and some recent reports of elevated Hcy in patients with primary adult onset dystonia have been published. Increased Hcy plasma levels may have important implications in patients affected by these basal ganglia disturbances, by exerting neurotoxic effects, contributing to neurotransmitter imbalance in motor circuits, and increasing the risk for vascular insults and cognitive dysfunctions.

J Neurol · 2018

Efficacy and safety of perampanel in Parkinson's disease. A systematic review with meta-analysis

Conclusion: In PD patients experiencing motor fluctuations, adjunctive PER did not improve the motor state and was well-tolerated at the lower doses.

Cochrane Database Syst Rev · 2016

Opioids for restless legs syndrome

Conclusion: Opioids seem to be effective for treating RLS symptoms, but there are no definitive data regarding the important problem of safety. This conclusion is based on only one study with a high dropout rate (moderate quality evidence).