Lamotrigine by Ray Sahelian, M.D. Lamictal Lamotrigine
Lamotrigine is
an anticonvulsant medicine that is chemically unrelated to any other anticonvulsant or
mood regulating medication.
Lamotrigine was approved in 1994 and was labeled for use as an anticonvulsant.
In 2003 it was approved by the FDA for use as a treatment for people with
bipolar disorder. There is no generic lamotrigine in the USA as the manufacturer
has patent protection. Generic lamotrigine is available in Canada.
Lamotrigine and Depression
Lamotrigine is sometimes used in patients who have failed to respond to
antidepressants or mood stabilizers. Patients with hard-to-treat bipolar
syndromes and with schizoaffective disorder have been treated more often than
patients with "treatment-resistant" unipolar disorders. Some people with such
hard to treat unipolar depressions have been treated with good results. Some
patients diagnosed with Borderline Personality Disorder, a disorder that many
psychiatrists believe is a variant of Bipolar Disorder, have responded to
treatment with lamotrigine. Patients with Post-Traumatic Stress Disorder and
with Depersonalization Disorder have also responded well to lamotrigine therapy.
Lamotrigine Side Effects
Lamotrigine side effects include:
Dizziness, headache, double vision or blurred vision, unsteadiness, nausea and vomiting,
sleepiness and rash.
Lamotrigine and Cleft Palate
GlaxoSmithKline Plc. warned in August, 2006 that there is an increased risk of cleft lip or cleft palate when the company's antiepileptic drug lamotrigine is used during early pregnancy. GlaxoSmithKline said cleft palate deformity was detected at "an elevated rate" in infants whose mothers used the lamotrigine treatment during the first three months of pregnancy, compared with those who weren't exposed to the drug. Antiepileptic drugs have been associated with oral clefts, while other factors including smoking, heavy alcohol intake, various infections, folic acid deficiency, and vitamin A intoxication, have also contributed. Oral clefts occur 0.5 to 2.16 times per 1,000 births. GlaxoSmithKline advised patients who are being treated with lamotrigine and who are, or intend to become pregnant, to discuss treatment with their doctors.
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