Do not take Lomexel 400mg Tablet if you are allergic to any of its components. Avoid exposure to direct and indirect sunlight (even when using sunscreen) while on treatment with Lomexel 400mg Tablet and for several days following the treatment, as it may cause skin sensitivity to sunlight. The risk of phototoxicity can be reduced by taking Lomexel 400mg Tablet in the evening, at least 12 hours before exposure to the sun. Lomexel 400mg Tablet should be discontinued if signs or symptoms of photosensitivity such as sensation of skin burning, swelling, redness, rash, blisters, dermatitis or itching occur. Lomexel 400mg Tablet may cause peripheral neuropathy and tendon effects. Consult the doctor if you experience symptoms of peripheral neuropathy such as pain, burning, tingling, numbness, and /or weakness, (or) symptoms of tendon effects like pain, inflammation, or rupture of a tendon. Let the doctor know if you have kidney problems, seizures or epilepsy.