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What is Fluvoxamine?
Fluvoxamine is a potent pharmaceutical intervention primarily classified as a Selective Serotonin Reuptake Inhibitor (SSRI).
While it belongs to the same broad family as well-known medications like Prozac or Zoloft, Fluvoxamine has a distinct chemical structure and a specific clinical profile that makes it a preferred choice for treating Obsessive-Compulsive Disorder (OCD) and various anxiety-related conditions.
What is Fluvoxamine Used For?
Fluvoxamine is approved by the FDA and all major drug regulating agencies across the globe. It is prescribed for a multitude of reasons listed below:
Obsessive-Compulsive Disorder (OCD):
Treatment is authorized for adults, adolescents, and children over the age of 7 (in some regions) or 8.
Social Anxiety Disorder:
Describes having intense anxiety when it comes to social situations.
Major Depressive Disorder:
Is used by adults in many countries, but is approved by the FDA primarily in the United States for the treatment of OCD.
How Does It Work?
SSRIs are selective serotonin reuptake inhibitors. Fluvoxamine is one of them.
Serotonin is blocked from being reabsorbed at the antibiotics neuronal membrane, which increases serotonin levels in the brain, which helps to regulate mood and relieve anxiety/obsessive behavior.
Dosage and Administration
Fluvoxamine is typically available in two forms: Immediate-Release (IR) tablets and Extended-Release (ER/CR) capsules.
| Feature | Immediate-Release | Extended-Release (CR) |
| Typical Start Dose | 50 mg once daily at bedtime | 100 mg once daily at bedtime |
| Dosing Frequency | Often split into two doses if >100 mg | Once daily |
| Max Dosage | 300 mg per day | 300 mg per day |
Always follow your doctor’s prescription for accurate dosing.
Common Side Effects
Like all SSRIs, Fluvoxamine can cause side effects as the body adjusts to the increased levels of serotonin.
Most side effects are mild and diminish after the first two to four weeks of treatment.
Frequent Side Effects:
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Nausea: The most common side effect, often mitigated by taking the medication with food.
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Somnolence (Sleepiness): Because Fluvoxamine can be sedating, it is usually taken at night.
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Dry Mouth: Increased thirst or a sticky feeling in the mouth.
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Insomnia: Conversely, some users may find it difficult to fall asleep.
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Sweating: Increased perspiration, especially at night.
Serious Side Effects (Seek Medical Attention):
Serotonin Syndrome: A rare but dangerous condition caused by too much serotonin. Symptoms include confusion, rapid heart rate, and muscle rigidity.
Hyponatremia: Low blood levels are more common in elderly patients.
Suicidal Ideation: Particularly in children and young adults during the first few weeks of treatment.
Precautions and Interactions
Warning:
Children and young adults may have suicidal thoughts after taking this medication. If you stop taking it suddenly, you may experience withdrawal symptoms.
Drug interactions:
It inhibits liver enzymes, causing other drugs to break down differently. Taking it with MAOIs is not recommended. Clopidogrel, warfarin, phenytoin, benzodiazepines, and phenytoin have specific interactions.
Health Conditions:
Inform your doctor about liver disease, epilepsy, heart disease, or bipolar disorder before taking.
Disclaimer
The information provided here is for educational purposes only. You should always speak with your healthcare provider before making any changes to your medication regimen.