Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Cariprazine (Vraylar) and lamotrigine (Lamictal) are both used to treat bipolar disorder, but they belong to different medication classes. Cariprazine is an atypical antipsychotic, while lamotrigine is an antiepileptic. Cariprazine is also FDA-approved for schizophrenia and as an add-on for major depressive disorder (MDD), whereas lamotrigine is used to treat seizures. Cariprazine comes as a capsule taken once daily, while lamotrigine is available in multiple forms, including tablets and chewable tablets, and is usually taken once or twice daily. Cariprazine is only available as a brand-name medication, while lamotrigine is available as a lower-cost generic. Common side effects of cariprazine include uncontrolled muscle movements and restlessness, whereas lamotrigine can cause dizziness and serious skin reactions. Cariprazine has fewer drug interactions compared to lamotrigine, which interacts with medications like birth control pills and valproic acid.
Lamotrigine (Lamictal) is an antiepileptic medication. The immediate-release version can treat different types of seizures as well as bipolar 1 disorder. But the extended-release version is only for seizures. Your dose depends on your age, the other medications you take, and what problem you're treating. Side effects can include dizziness, headache, and serious skin reactions. It can also cause withdrawal symptoms like seizures if you stop taking it suddenly.