Antiepileptic (sodium channel blocker)
What to do if you miss a dose of Lamotrigine
Missing a dose of Lamotrigine (Lamotrigine) is common — most people will skip a dose at some point during a course. The right action depends on how long since the missed dose and whether Lamotrigine is taken event-driven or daily at 25mg, 50mg, 100mg, 200mg. The wrong action — doubling up — is not recommended.
For daily Lamotrigine
If Lamotrigine is taken daily for a chronic condition, take the missed dose as soon as you remember, unless it is almost time for the next scheduled dose. In that case skip the missed dose and continue normally. According to the prescribing information for Lamotrigine, two doses should never be taken close together to "make up" for a miss.
For event-driven Lamotrigine
If Lamotrigine is used as needed (not on a fixed schedule), there is no "missed dose" in the conventional sense — simply take the planned dose when needed and observe the recommended gap before re-dosing. Lamotrigine is a phenyltriazine that selectively blocks voltage-gated sodium channels, stabilising neuronal membranes and reducing the release of excitatory neurotransmitters, particularly glutamate.
Frequently asked questions
Should I double the dose if I missed Lamotrigine? ▾
No. Doubling doses of Lamotrigine to compensate is not recommended at any 25mg, 50mg, 100mg, 200mg strength and increases the risk of side effects without improving efficacy. Take the next scheduled dose normally.
How many missed doses are too many? ▾
Occasional missed doses of Lamotrigine are usually inconsequential. Repeated missed doses can compromise the therapeutic effect — for chronic conditions like those treated with Antiepileptic (sodium channel blocker), consistent dosing matters. If adherence is hard, discuss reminders, simpler schedules or alternative formulations with the prescriber.
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.