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It is very important that your doctor check your or your child's progress closely while you are using this medicine to see if it is working properly and to allow for a change in the dose. Blood and urine tests may be needed to check for any unwanted effects.
Using this medicine while you are pregnant (especially during the first 3 months of pregnancy) can harm your unborn baby and cause serious unwanted effects (eg, brain or facial problems, heart or blood vessel problems, arm or leg problems, or intelligence or mental problems). Use an effective form of birth control to keep from getting pregnant. If you think you have become pregnant while using the medicine, tell your doctor right away.
It is very important to take folic acid before getting pregnant and during early pregnancy to lower chances of harmful side effects to your unborn baby. Ask your doctor or pharmacist for help if you are not sure how to choose a folic acid product.
Liver problems may occur while you are using this medicine, and some may be serious. Check with your doctor right away if you are having more than one of these symptoms: abdominal or stomach pain or tenderness, clay-colored stools, dark urine, decreased appetite, fever, headache, itching, loss of appetite, nausea and vomiting, skin rash, swelling of the feet or lower legs, unusual tiredness or weakness, or yellow eyes or skin.
Valproic acid may cause some people to be agitated, irritable, or display other abnormal behaviors. It may also cause some people to have suicidal thoughts and tendencies or to become more depressed. If you notice any of these side effects, tell your doctor right away.
Valproic acid may cause serious allergic reactions affecting multiple body organs (eg, liver or kidney). Check with your doctor right away if you have the following symptoms: a fever, dark urine, headache, rash, stomach pain, swollen lymph glands in the neck, armpit, or groin, unusual tiredness, or yellow eyes or skin.
Pancreatitis may occur while you are using this medicine. Tell your doctor right away if you have sudden and severe stomach pain, chills, constipation, nausea, vomiting, fever, or lightheadedness.
Check with your doctor right away if fever, sore throat, rash, ulcers in the mouth, nosebleeds, bleeding gums, swollen glands, or small red or purple spots on the skin occur. These could be symptoms of a serious blood problem.
Check with your doctor right away if you are having unusual drowsiness, dullness, tiredness, weakness or feelings of sluggishness, changes in mental status, low body temperature, or vomiting. These may be symptoms of a serious condition called hyperammonemic encephalopathy.
Valproic acid may cause some people to become dizzy, lightheaded, drowsy, or less alert than they are normally. Do not drive or do anything else that could be dangerous until you know how this medicine affects you.
Do not stop using this medicine without first checking with your doctor. Your doctor may want you to gradually reduce the amount you are using before stopping completely. This may help prevent worsening of seizures and reduce the possibility of withdrawal symptoms.
Before you have any medical tests, tell the medical doctor in charge that you are taking this medicine. The results of some tests may be affected by this medicine.
This medicine will add to the effects of alcohol and other CNS depressants (medicines that cause drowsiness). Some examples of CNS depressants are antihistamines or medicine for hay fever, other allergies, or colds, sedatives, tranquilizers, or sleeping medicine, prescription pain medicine or narcotics, medicine for seizures (eg, barbiturates), muscle relaxants, or anesthetics, including some dental anesthetics. Check with your doctor before taking any of the above while you are using this medicine.
If you plan to have children, talk with your doctor before using this medicine. Some men receiving this medicine have become infertile (unable to have children).
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.
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