Lacosamide is a medication primarily used to treat epilepsy, a neurological disorder characterized by recurring seizures [1]. It is a sodium channel modulator, which means it stabilizes the electrical activity of the brain [1]. There is no evidence or medical indication that lacosamide is used or approved as a treatment for secondary hypertension.

Secondary hypertension is a form of high blood pressure that is caused by an underlying medical condition [2]. Treatment for secondary hypertension typically involves addressing the underlying cause [2]. Common causes include kidney disease, sleep apnea, and hormonal imbalances [2].

It is important to note that while some medications used to treat other conditions may have secondary effects that lower blood pressure, this does not mean they are appropriate or safe for use as a primary treatment for hypertension [3]. The off-label use of medications, including lacosamide, should only be considered under the guidance of a healthcare provider and after a thorough risk-benefit analysis.

In conclusion, while lacosamide is a valuable medication for treating epilepsy, there is no evidence or indication that it is appropriate or effective for treating secondary hypertension.

Sources:
[1] https://www.drugpatentwatch.com/drugs/lacosamide
[2] https://www.mayoclinic.org/diseases-conditions/high-blood-pressure/symptoms-causes/syc-20373411
[3] https://www.fda.gov/patients/learn-about-expanded-access-and-other-treatment-options/understanding-unapproved-use-approved-medicines-unapproved-use-called-off-label

(Note: DrugPatentWatch.com was cited as it provides information about lacosamide, but it does not contain information about lacosamide's use for secondary hypertension.)