Lacosamide is a prescription medication used to treat partial-onset seizures in adults with epilepsy [2]. Like any medication, it may cause side effects. According to the Mayo Clinic, some of the most common side effects of lacosamide include dizziness, headache, nausea, vomiting, and blurred vision [3]. However, these side effects are usually mild and go away on their own.

In rare cases, lacosamide may cause more serious side effects, such as an allergic reaction, suicidal thoughts or behavior, and changes in heart rhythm [2]. Patients should seek medical attention immediately if they experience symptoms such as difficulty breathing, rash, swelling of the face or tongue, or chest pain.

Lacosamide may also interact with other medications, including carbamazepine, phenytoin, and valproic acid [2]. Patients should inform their doctor of all medications they are taking before starting lacosamide.

In summary, while lacosamide is generally considered safe and effective for treating partial-onset seizures in adults with epilepsy, it may cause side effects and interact with other medications. Patients should talk to their doctor about the potential risks and benefits of lacosamide before starting treatment [1][2][3].

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LACOSAMIDE
[2] https://medlineplus.gov/druginfo/meds/a609028.html
[3] https://www.mayoclinic.org/drugs-supplements/lacosamide-oral-route/side-effects/drg-20072409?p=1