What may be the issue if a patient on Lamictal presents with a fever and severe headache?

What may be the issue if a patient on Lamictal presents with a fever and severe headache?

• A. Aseptic meningitis
• B. Bacterial meningitis
• C. Migraine
• D. Sinusitis

Answer: (A)

Lamotrigine can cause aseptic meningitis as a rare adverse reaction. When a patient on Lamictal develops fever and severe headache, this presentation should raise concern for drug-induced aseptic meningitis, especially if symptoms begin after starting or increasing the dose. Unlike bacterial meningitis, the inflammation is not due to infection and often improves after stopping the medication. Diagnostic workup should include evaluating for meningitis (CSF analysis) to rule out infection, but the key clue is the medication link. Migraines can cause severe headaches but fever isn't typical, and sinusitis produces facial pain and nasal symptoms rather than meningitis signs. The appropriate action is to discontinue lamotrigine and pursue evaluation to rule out infectious meningitis, with symptoms usually resolving after drug withdrawal.

Lamotrigine can cause aseptic meningitis as a rare adverse reaction. When a patient on Lamictal develops fever and severe headache, this presentation should raise concern for drug-induced aseptic meningitis, especially if symptoms begin after starting or increasing the dose. Unlike bacterial meningitis, the inflammation is not due to infection and often improves after stopping the medication. Diagnostic workup should include evaluating for meningitis (CSF analysis) to rule out infection, but the key clue is the medication link. Migraines can cause severe headaches but fever isn't typical, and sinusitis produces facial pain and nasal symptoms rather than meningitis signs. The appropriate action is to discontinue lamotrigine and pursue evaluation to rule out infectious meningitis, with symptoms usually resolving after drug withdrawal.