Antiepileptic (sodium channel blocker)
Lamotrigine and changes in taste or smell
Changes in taste (dysgeusia) or smell (parosmia, anosmia) are an under-recognised side effect category. Some medications produce a metallic taste, a dulling of flavours, or unusual smell perception. Whether Lamotrigine (Lamotrigine) at 25mg, 50mg, 100mg, 200mg causes these changes depends on Lamotrigine; the experience is usually benign but can affect appetite and quality of life.
Why taste and smell change on Lamotrigine
Taste and smell perception relies on receptors in the tongue and nose that are sensitive to systemic medications. Lamotrigine can affect taste through several mechanisms: alteration of saliva composition, direct receptor interference, secretion in saliva of medication metabolites, or changes in zinc handling. Lamotrigine is a phenyltriazine that selectively blocks voltage-gated sodium channels, stabilising neuronal membranes and reducing the release of excitatory neurotransmitters, particularly glutamate.
When changes need attention
Mild metallic taste or dulled flavours in the first weeks of Lamotrigine at 25mg, 50mg, 100mg, 200mg are common and often resolve as the body adjusts. Persistent severe loss of taste or smell, sudden onset, or interference with eating warrants prescriber review — both because the medication may need adjustment and because other causes (zinc deficiency, sinus disease) should be excluded.
Frequently asked questions
Can Lamotrigine change my taste or smell? ▾
Yes, some users report taste or smell changes on Lamotrigine at 25mg, 50mg, 100mg, 200mg — typically a metallic or dulled-flavour sensation that develops in the first weeks. The prescribing information for Lamotrigine lists frequency in clinical trials. Most cases are mild and resolve.
Will my taste come back when I stop Lamotrigine? ▾
For most users, taste changes attributable to Lamotrigine resolve within weeks of stopping the medication. Persistent loss after stopping, or severe loss while on therapy, deserves a clinical evaluation since other causes may be involved.
Products containing Lamotrigine
More on Lamotrigine
- With alcoholLamotrigine and alcohol — is it safe to drink?
- With foodShould Lamotrigine be taken with food?
- Side effectsLamotrigine side effects: common, rare and warning signs
- Dosage guideLamotrigine dosage guide: how much to take and when
- OnsetHow fast does Lamotrigine start working?
- DurationHow long does Lamotrigine last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.