Comparison
Bromantane vs L-Theanine
Side-by-side of Bromantane and L-Theanine. Every row below is pulled from the compound schema and will update as our data grows. For deeper reads, follow through to each compound page.
Bromantane
Bromantane, the Russian nootropic sold as Ladasten (ADK-709), acts on dopamine to cut fatigue and anxiety without classical stimulant rebound.
L-Theanine
L-theanine is a non-protein amino acid found in tea leaves. The most-replicated nootropic; pairs with caffeine at 1:1 (100-200 mg each) for acute focus.
Effects at a glance
Bromantane
- •Russian RCT base (Voznesenskaya 2010, n=728) supports 50 mg daily for asthenia and fatigue over 4 weeks
- •Atypical actogenic mechanism: induces tyrosine hydroxylase rather than direct monoamine release
- •Subjective profile is anxiolytic plus mildly motivating, distinct from classical stimulants
- •Long half-life of around 11 hours supports once-daily morning dosing
- •WADA-banned since 1996; relevant for tested athletes
- •Western evidence base is thin; most published trials are Russian-language and not independently replicated
L-Theanine
- •Non-protein amino acid in tea; the most-replicated nootropic in the human RCT literature
- •Caffeine + theanine at 1:1 (100-200 mg each) is the gold-standard acute focus stack
- •Solo doses of 200-400 mg reduce subjective stress and improve sleep quality
- •Increases alpha-wave EEG activity within 30-45 minutes of 200 mg oral dose
- •Crosses blood-brain barrier; bioavailability high, half-life 60-90 minutes
- •Clean safety record; minimal interactions at supplement doses
Side-by-side
| Attribute | Bromantane | L-Theanine |
|---|---|---|
| Category | nootropic | supplement |
| Also known as | Ladasten, ADK-709, N-(4-bromophenyl)adamantan-2-amine | theanine, gamma-glutamylethylamide |
| Half-life (hr) ↗ | 11 | 1.5 |
| Typical dose (mg) ↗ | 75 | 200 |
| Dosing frequency | daily, morning | as needed (with caffeine) or daily |
| Routes | oral | oral |
| Onset (hr) | 3 | 0.5 |
| Peak (hr) | 168 | 1 |
| Molecular weight | 280.21 | 174.2 |
| Molecular formula | C16H20BrN | C7H14N2O3 |
| Mechanism | Indirect dopaminergic and serotonergic actogenic activity via induction of tyrosine hydroxylase and selective increases in serotonin synthesis in hippocampus and hypothalamus. | Crosses BBB; modulates GABA/dopamine/serotonin (modest); increases alpha-wave EEG activity; dampens stress-induced sympathetic response without sedation. |
| Legal status | Approved in Russia (Ladasten); unscheduled and unapproved in US, EU, UK | OTC dietary supplement |
| WADA status | banned | allowed |
| DEA / Rx | Not scheduled in the US | OTC supplement |
| Pregnancy | Not recommended | Insufficient supplement-dose data; tea-source intake safe |
| CAS | 87913-26-6 | 3081-61-6 |
| PubChem CID | 9576456 | 439378 |
| Wikidata | Q4093816 | Q909931 |
Safety profile
Bromantane
Common side effects
- mild GI upset
- headache
- skin rash
- occasional insomnia at higher doses
Contraindications
- pregnancy
- lactation
- severe hepatic impairment
- severe renal impairment
- pediatric use
Interactions
- MAOIs: theoretical additive dopaminergic and serotonergic activity(major)
- levodopa and dopamine agonists: additive dopaminergic activity(moderate)
- SSRIs and other serotonergic drugs: theoretical serotonergic additivity(moderate)
- classical stimulants: theoretical additive activity, undocumented(moderate)
L-Theanine
Common side effects
- mild GI upset (rare)
- headache (rare)
Contraindications
- pregnancy / lactation (insufficient data at supplement doses)
- concurrent strong GABAergics without caution
Interactions
- caffeine: synergistic for acute focus; dampens jitter without blunting alertness(minor)
- benzodiazepines / alcohol: potential additive sedation(minor)
Which Should You Take?
L-Theanine comes out ahead for most readers on the criteria we weight: 3 catalogued goals, OTC dietary supplement, oral dosing, with a Tier-A outcome catalogued. Bromantane is the right call when one of the conditionals below applies.
- → If your priority is fatigue resistance, pick Bromantane.
- → If your priority is sleep onset or sleep quality, pick L-Theanine.
- → If your priority is focus or working memory, pick L-Theanine.
Edge case: If you want to avoid controlled substance, L-Theanine is the more accessible choice.
Default choice: L-Theanine. Lower friction to source, a Tier-A evidence outcome catalogued, and broader goal coverage. Reach for Bromantane only if your priority sits squarely in the goals it owns above.
This verdict is generated from each compound's schema (goals, legal status, evidence outcomes, dosing route). It updates automatically as our compound data evolves; the deeper read sits on each individual compound page.
Common questions
What is the difference between Bromantane and L-Theanine?
Bromantane and L-Theanine differ in category (nootropic vs supplement), mechanism, and typical dosing. See the side-by-side table for full details.
Which has a longer half-life, Bromantane or L-Theanine?
Bromantane half-life is 11 hours; L-Theanine half-life is 1.5 hours.
Can you stack Bromantane with L-Theanine?
Stack compatibility depends on mechanism overlap, legal status, and individual response. Check each compound page for specific interactions and contraindications before combining.
Go deeper