Quick Facts
Generic NameLamotrigine
Brand NameLamictal
Drug ClassMood Stabilizer
FDA Approved2003
Starting Dose25mg/day (SLOW titration)
Typical Range200–400mg/day
Max Dose400mg/day
Half-Life25 hours
MetabolismUGT glucuronidation
Generic Available2008
What Is Lamictal?
Lamotrigine (brand name Lamictal) is a anticonvulsant mood stabilizer (Mood Stabilizer) prescribed for bipolar disorder, bipolar depression, bpd, and other psychiatric conditions. Best mood stabilizer for BIPOLAR DEPRESSION specifically. Weight-neutral. Minimal cognitive effects. Good tolerability. CRITICAL: requires SLOW titration (6+ weeks to therapeutic dose) to prevent rare but serious Stevens-Johnson syndrome skin reaction. Dose halved when combined with valproate.
At Psychiatry Telemed, lamotrigine is prescribed and monitored by board-certified psychiatrists who understand the nuances of Mood Stabilizer pharmacology — selecting the right dose, managing side effects, monitoring drug interactions, and optimizing your treatment through consistent monthly medication management appointments.
Lamotrigine (Lamictal) — Mood Stabilizer medication for psychiatric care
ManufacturerGlaxoSmithKline
How Lamictal Affects Neurotransmitters
How Lamictal Works
Lamotrigine modulates glutamate release by blocking voltage-sensitive sodium channels, reducing excessive excitatory neurotransmission. This mechanism is thought to underlie its mood-stabilizing effects, particularly its effectiveness against bipolar depressive episodes. It also has neuroprotective properties.
Efficacy: Lamictal vs. Comparators
Efficacy Comparison
Response & remission rates vs. comparators (Cipriani et al. meta-analysis)
Data from published meta-analyses. Individual response may vary.
Conditions Treated with Lamictal
Bipolar Disorder
FDA-approved for bipolar maintenance. Excels at preventing depressive episodes.
Learn About Bipolar DisorderBipolar Depression
One of few medications effective specifically for bipolar depression without triggering mania.
Learn About Bipolar DepressionConsidering Lamictal?
Board-certified psychiatrists can determine if lamotrigine is right for you.
Dosage Information
| Indication | Starting Dose | Typical Range | Maximum |
|---|---|---|---|
| Bipolar Disorder | 25mg/day (SLOW titration) | 200–400mg/day | 400mg/day |
| Bipolar Depression | 25mg/day (SLOW titration) | 200–400mg/day | 400mg/day |
| BPD | 25mg/day (SLOW titration) | 200–400mg/day | 400mg/day |
| Cyclothymia | 25mg/day (SLOW titration) | 200–400mg/day | 400mg/day |
Brain Regions Targeted by Lamictal
Side Effects
Like all medications, lamotrigine has potential side effects. Most are mild, occur early in treatment, and resolve within 1–2 weeks. Your psychiatrist monitors at every appointment.
Common Side Effects
HeadacheDizzinessNauseaBlurred VisionDrowsinessInsomnia
Less Common
TremorRhinitisRash (benign)Coordination ProblemsDry Mouth
Serious (Seek Immediate Help)
Stevens-Johnson Syndrome (SJS)Toxic Epidermal NecrolysisAseptic MeningitisBlood Dyscrasias
Side Effect Profile: Lamictal vs. Class Average
Side Effect Profile
Incidence rates from FDA prescribing information vs. class average
Percentages from clinical trial data. Actual experience may differ.
⚠️ FDA Black Box Warning
SERIOUS SKIN REACTIONS including Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN). Risk highest during first 2–8 weeks and with rapid titration. STOP immediately if rash develops.
Drug Interactions
Major Interactions
Valproate (doubles lamotrigine levels — halve lamotrigine dose), carbamazepine (halves lamotrigine levels — double lamotrigine dose), oral contraceptives (may reduce lamotrigine levels)
CYP Metabolism
Metabolized by UGT glucuronidation (not CYP enzymes). Key interactions are through UGT induction/inhibition, not CYP pathways.
Alcohol
Avoid alcohol during lamotrigine treatment. Both affect the CNS, increasing sedation and impairing judgment.
Generic Versions & Cost
Generic lamotrigine available since 2008. Approximate cost: $10–20/month. FDA-certified bioequivalent to brand-name Lamictal.
Starting Lamictal: What to Expect
First Weeks
Lamotrigine is typically started at 25mg/day (SLOW titration) and increased gradually. Common initial side effects usually improve within 1–2 weeks. Full therapeutic benefit develops over 4–8 weeks.
When to Contact Your Psychiatrist
Contact your psychiatrist for: worsening depression/anxiety, thoughts of self-harm, unusual agitation, severe side effects, or any concerning changes.
Stopping Lamictal Safely
Never stop lamotrigine abruptly. Your psychiatrist will develop a gradual tapering schedule to minimize discontinuation effects.
Timeline: When Lamictal Starts Working
Timeline to Effectiveness
Expected improvement trajectory over the first 8 weeks
Based on clinical trial data. Full therapeutic effects may take 6–8 weeks.
Get Lamictal from a Board-Certified Psychiatrist
At Psychiatry Telemed, lamotrigine is prescribed following comprehensive evaluation. All Florida via HIPAA-compliant telepsychiatry. 1–3 days. $200 eval, $100 follow-up.
Frequently Asked Questions
Prescribed for bipolar disorder, bipolar depression, bpd, cyclothymia.
Typically 2–4 weeks for initial improvement, 4–8 weeks for full benefit.
Common: headache, dizziness, nausea, blurred vision, drowsiness. Most resolve within 1–2 weeks.
No. Not habit-forming but should not be stopped abruptly — gradual tapering recommended.
Best mood stabilizer for BIPOLAR DEPRESSION specifically. Weight-neutral. Minimal cognitive effects. Good tolerability. CRITICAL: requires SLOW titration (6+ weeks to therapeutic dose) to prevent rare
Alcohol should be avoided — increases sedation, impairs judgment, and may worsen symptoms.
Resources
Medical Disclaimer: Educational only. Consult a psychiatrist before starting/stopping medication. Crisis: call 988 or 911.
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