Absenor
Absenor is a medicine that helps treat epilepsy and mania.
Form
tipat, liuos
Strength
200 mg/ml
Active Ingredient
Sodium valproate
Manufacturer
Orion Corporation
How to Use
Dosage
For adults, the typical starting dose for epilepsy is 600 mg daily. For mania, the recommended starting dose is 750 mg daily, and the usual daily dose is between 1000 mg and 2000 mg. Your doctor will set your exact dose.
Method
Take Absenor oral solution or drops by mouth. Drops can be mixed with a small amount of fruit puree.
Important
The maximum daily dose is typically up to 2000 mg, but always follow your doctor's specific instructions.
Possible Side Effects
COMMON
- •Shaking or trembling.
- •Low red blood cell count.
- •Low platelet count.
- •Unusual decrease in sodium levels in your blood.
- •Unusual increase in insulin levels in your blood.
- •Lower levels of 'good' cholesterol in your blood.
- •Weight gain or weight loss.
- •Feeling confused.
- •Seeing or hearing things that aren't there.
- •Feeling aggressive.
- •Feeling agitated or restless.
- •Difficulty concentrating.
- •Loss of appetite.
- •Feeling very sleepy.
- •Having seizures.
- •Problems with memory.
- •Head pain.
- •Involuntary eye movements.
- •Feeling dizzy.
- •Hearing loss.
- •Throwing up.
- •Pain in the upper stomach area.
- •Loose or watery stools.
- •Problems with your gums.
- •Mouth sores or inflammation.
- •Allergic reactions.
- •Hair loss that may be temporary.
- •Problems with your nails or the skin around them.
- •Pain during menstruation.
RARE
- •Low numbers of blood cells, including white blood cells.
- •Producing less urine due to too much of a certain hormone.
- •Increased male hormones leading to symptoms like excessive body hair (especially in women), changes in a woman's appearance to be more masculine, acne, or male pattern baldness.
- •Temporary symptoms similar to Parkinson's disease, like stiffness or difficulty moving.
- •Problems with balance or coordination.
- •A tingling or numb feeling in your hands or feet.
- •Inflammation of small blood vessels.
- •Skin reactions, such as rashes, unusual hair growth, or changes in hair color or texture.
- •Bones becoming thinner or weaker, leading to bone loss or fractures.
- •Periods that are not regular or stop altogether.
- •Lower than normal body temperature.
- •Swelling in your feet and legs.
- •A problem with how stem cells in your bone marrow develop.
- •Underactive thyroid gland.
- •Too much ammonia in your blood or weight gain due to obesity.
- •Unusual behavior, being overly active, having trouble learning, or difficulty sleeping.
- •Problems with speaking or coordination.
- •A rare immune system disease (SLE).
- •Muscle pain and weakness, or sudden muscle damage.
- •Urinating during sleep.
- •Cysts on the ovaries.
- •Difficulty for men to have children.
- •Problems with your blood's ability to clot.
- •Low levels of vitamin B8 (biotin).
- •More of a certain type of white blood cell (eosinophils) and fewer blood clotting factors.
- •Mental health issues like psychosis, anxiety, or depression.
- •A blood disorder where the nucleus of some white blood cells has an unusual shape.
Important Warnings
- Absenor can seriously harm an unborn child if taken during pregnancy. If you are a woman who can have children, you must use effective birth control without interruption throughout your treatment with Absenor. Contact your doctor immediately if you plan to get pregnant or think you might be pregnant. Do not stop taking Absenor without your doctor's advice, as your condition could worsen.
- Tell your doctor right away if you get sick suddenly, especially in the first six months of treatment. Symptoms can include repeated vomiting, severe tiredness, stomach pain, sleepiness, weakness, loss of appetite, upper stomach pain, nausea, yellow skin or eyes (jaundice), swollen legs, worsening epilepsy, or feeling generally unwell. These could be signs of serious liver or pancreas damage.
- Seek medical attention if you or your child experience balance or coordination problems, severe drowsiness, or vomiting. These symptoms could be due to too much ammonia in the blood.
- Contact your doctor immediately if you have thoughts of harming yourself or ending your life at any time.
- Tell your doctor if your seizures get worse or become more frequent.
Show 2 more warnings
- Seek immediate medical help if you notice any severe skin reactions, such as blisters, peeling skin, rash, skin changes on any body area (including lips, eyes, mouth, nose, genitals, hands and feet), flu-like symptoms (fever, chills, muscle aches), swollen lymph nodes, and possible problems with other organs. These could be signs of serious skin conditions.
- Alcohol consumption is not recommended while taking Absenor.
Use in Elderly Patients
Category C
Suitable for older adults, with specific precautions. Low serum albumin levels increase the response. Consider potential adverse effects, such as hyponatraemia och hematological changes. Monitor liver function. (updated 10.11.2025)