L-Theanine vs Propranolol for anxiety
Short answer: For anxiety, users rate them about the same: 91% report improvement with L-Theanine (1289 reports) and 94% with Propranolol (101 reports).
L-Theanine has 18 meta-analyses and 78 randomized trials on PubMed; Propranolol has 268 and 1,961.
Based on 3,475 reports about L-Theanine and 166 about Propranolol. Not medical advice.
| L-Theanine Supplement | Propranolol Medication | |
|---|---|---|
| Users say it helped | 65%helped1,807 reports · high confidence | 79%helped105 reports · high confidence |
| Verdict | Mostly positive | Mostly positive |
| Research | AResearch: Strong | AResearch: Strong |
| Meta-analyses / RCTs | 18 / 78 | 268 / 1,961 |
| Mainly used for | ||
| Anxiety % reporting improvement | 91% (1289) | 94% (101) |
| Focus % reporting improvement | 88% (501) | 100% (4) |
| Sleep % reporting improvement | 78% (370) | 40% (5) |
| Mood % reporting improvement | 77% (223) | 20% (5) |
| Energy % reporting improvement | 68% (97) | — |
| Common side effects | drowsiness, vivid dreams, fatigue, headache | insomnia, depression, fatigue, weight gain |
| Typical dose reported | 200 mg / bedtime | Not listed |
This meta-analysis provides evidence that theanine plus caffeine, and theanine alone, could be beneficial for cognitive and mood outcomes. More research using tea beverages or tea-equivalent bioactive doses and research in free-living participants is needed.
Nutr Rev, 2025 ↗“This morning was my first time taking this combination along with my other daily vitamins and wow, what a difference it has made in my overall mood and anxiety!”
In this systematic review and network meta-analysis, mirtazapine, biperiden, and vitamin B6 were associated with the greatest efficacy for AIA, with vitamin B6 having the best efficacy and tolerance profile. Trazodone, mianserin, and propranolol appeared as effective alternatives with slightly less favorable efficacy and tolerance profiles. These findings should assist prescribers in selecting an appropriate medication for treating AIA.
JAMA Netw Open, 2024 ↗“I just got a script for propranolol that I can take as needed and it's been a game changer.”
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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