Lacosamide is an anticonvulsant medication used to treat partial-onset seizures in adults with epilepsy. According to the sources provided, there are several common side effects associated with lacosamide use.

The first source [1] lists the most common side effects of lacosamide as dizziness, nausea, headache, and fatigue. These side effects were reported in clinical trials and are considered to be mild to moderate in severity.

The second source [2] provides a more comprehensive list of potential side effects. In addition to the common side effects listed above, other possible side effects include:

- Blurred vision
- Double vision
- Loss of coordination
- Tremors
- Memory problems
- Mood changes
- Skin rash
- Swelling of the hands, feet, or ankles

The third source [3] also lists similar side effects, including dizziness, headache, nausea, and fatigue. It also notes that lacosamide may cause serious side effects such as an allergic reaction, suicidal thoughts or behavior, and changes in heart rhythm.

It is important to note that not all people who take lacosamide will experience these side effects. However, if you are taking lacosamide and experience any of these side effects, you should contact your healthcare provider immediately.

In conclusion, the common side effects of lacosamide include dizziness, nausea, headache, and fatigue. Other possible side effects may include blurred vision, double vision, loss of coordination, tremors, memory problems, mood changes, skin rash, and swelling of the hands, feet, or ankles. If you experience any of these side effects, you should contact your healthcare provider right away.

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