Self-reports cluster around four oral bands: a perceptible threshold cognitive lift at 12.5-25 mg, functional mood balance between 50-150 mg, pronounced but sedating effects at 200-300 mg, and heavy 400 mg+ experiments that many posters later regret. Clinical references corroborate a long half-life (25-33 h) and flag potent pharmacokinetic interactions—valproate can double lamotrigine levels, while carbamazepine or ethinylestradiol can halve them—explaining several adverse-event threads on harm-reduction boards. Titration must start at 25 mg every other day to avoid rash; typical maintenance 100-200 mg divided once or twice daily. Users experimenting above 300 mg risk severe dermatological reactions and ataxia. Reports also note lamotrigine dulls psychedelic visuals and blunts dissociative effects.
Lamotrigine molecular structure diagram from the DrugsPRO substance library.
Also known as: Ltg, Lamictal, Subvenite, Lamictal xr, Lamictal odt
Classification
Chemical: Medicine
Psychoactive: Depressant
Psychoactive: Dissociative
Tag: Anticonvulsant
Tag: Antidepressant
Tag: Mood Stabilizer
Tag: Pharmaceutical
Tag: Phenyl-triazine anticonvulsant
Effects
Anxiolysis
Mild Sedation
Ataxia
Rash Or Itching
Sedation
Incoordination
Subtle Mood Lifting
Cognitive Clarity
Dizziness
Euphoria
Anxiety Suppression
Mood Stabilization Bipolar Depression Prophylaxis
Double Vision
Dulled Perception
Dehydration
Sexual Dysfunction
Visual Acuity Suppression
Physical Enhancement
Routes of Administration
Oral
Dosage
Threshold: 12.5–25 mg (perceptible to some; not a clinical target)
Light: 25–50 mg (early titration zone)
Common: 50–150 mg (bipolar depression typical maintenance often near 200 mg/day; epilepsy may require higher)
Strong: 150–300 mg (higher maintenance, sedation/diplopia more likely)
Heavy: 300 mg+ (rash and neurotoxicity risk ↑; medical supervision only)
Duration
Onset: 1-3 h
Peak: 4-8 h
Offset: 8-16 h
After Effects: 24-48 h
Total Duration: 12-24 h
Harm Reduction
Check interactions before mixing substances, pay attention to dose spacing and hydration, and treat all dosage guidance as approximate rather than guaranteed safe.
Sources
Substance data is aggregated from the following public harm-reduction and reference sources.
This static page is intended as a readable non-JS and prerender-friendly library export.
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Lamotrigine - Guide des substances DrugsPRO
Lamotrigine: Self-reports cluster around four oral bands: a perceptible threshold cognitive lift at 12.5-25 mg, functional mood balance between 50-150 mg, pronounced but sedating effects at 200-300 mg, and heavy 400 mg+ experiments that many posters later regret. Clinical references corroborate a lo
