Valcross Injection is used for the treatment of epilepsy (seizures). It controls seizures by decreasing the abnormal and excessive activity of the nerve cells in the brain. Valcross Injection is given under the supervision of a healthcare professional and should not be self-administered. You should never skip any doses and finish the full course of treatment even if you feel better as stopping the medication without talking to the doctor may cause non-stop seizures and can endanger life. Be careful if you are using birth control pills as this medicine may interfere with the working of contraceptives. Common side effects of this medicine include headache, nausea, dizziness, and sleepiness, constipation, and weight gain among others. Most side effects wear off, but if they bother you or do not go away, tell your doctor. There may be ways of preventing or reducing these effects. Long-term treatment can cause weakness in your bones (osteoporosis), increasing your risk of breaking a bone. Before taking this medicine, tell your doctor if you have kidney or liver problems, meningitis or depression, or suicidal thoughts. Also let your healthcare team know about all other medications you are using as some may affect, or be affected by, this medicine. If you are pregnant or breastfeeding, this medicine can be taken if clearly needed but the dose may be adjusted. You may need frequent blood tests to check how you are responding to this medicine.