Lacosamide is an antiepileptic drug used for the treatment of partial-onset seizures in adults. According to the sources provided, the recommended dosage for lacosamide depends on various factors such as the patient's age, weight, medical condition, and response to treatment.

The drug patent watch website [1] indicates that the recommended dose for lacosamide is 200-400 mg/day, which can be taken as two divided doses. However, the dose may be adjusted based on the patient's individual response to the medication.

Medscape [2] indicates that the recommended starting dose for adults is 50 mg twice daily, which can be increased by 50 mg every week, up to a maximum dose of 400 mg/day. For patients with renal impairment, the dose may need to be adjusted based on their creatinine clearance levels.

Epilepsy.com [3] also notes that the recommended starting dose for adults is 50 mg twice daily, which can be increased by 50 mg every week, up to a maximum dose of 400 mg/day. For patients with liver or kidney problems, the dose may need to be adjusted.

In conclusion, the recommended dosage for lacosamide depends on various factors and should be determined by a healthcare professional based on the patient's individual response to the medication. Patients should always follow their doctor's instructions regarding the dosage and duration of treatment.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LACOSAMIDE
[2] https://reference.medscape.com/drug/vimpat-motpoly-xr-lacosamide-343026
[3] https://www.epilepsy.com/medications/lacosamide