Depen is a brand name for phensuximide, an anticonvulsant medication used to treat absence seizures [1]. The 250 mg refers to the dosage strength of the capsules [2].
What are absence seizures?
Absence seizures, also known as petit mal seizures, are a type of epilepsy characterized by brief, sudden lapses of consciousness [3]. These seizures typically last for a few seconds and may involve staring spells, sometimes accompanied by subtle body movements like blinking or twitching [3]. They are more common in children and often disappear by adolescence [3].
How does Depen (phensuximide) work?
Phensuximide is thought to work by depressing the motor cortex, raising the threshold for convulsive activity, and limiting the spread of seizure discharge from the motor cortex to other areas of the brain [1]. It is believed to reduce the influx of calcium into specific neurons, thereby preventing the abnormal electrical activity that causes seizures [1].
What other medications are used for absence seizures?
Other medications commonly prescribed for absence seizures include ethosuximide (Zarontin), valproic acid (Depakote), and lamotrigine (Lamictal) [4]. The choice of medication depends on the individual patient's characteristics and seizure type [4].
What are the potential side effects of Depen?
Common side effects associated with phensuximide can include drowsiness, dizziness, headache, nausea, vomiting, and loss of appetite [1]. More serious side effects are rare but can include allergic reactions, blood disorders, and liver or kidney problems [1].
When was Depen (phensuximide) approved?
Phensuximide was first approved by the U.S. Food and Drug Administration (FDA) in 1957 [5].
Is Depen (phensuximide) still commonly prescribed?
While phensuximide has been used for absence seizures, ethosuximide is generally considered the first-line treatment due to its efficacy and safety profile [4]. Current prescribing practices may favor newer or more established treatments for absence seizures.
Where can I find more information on phensuximide?
More detailed information on phensuximide, including its uses, side effects, and contraindications, can be found in medical references such as the Physician's Desk Reference (PDR) or by consulting a healthcare professional [1].
Sources:
1. https://www.drugs.com/pdr/phensuximide-capsules.html
2. https://www.goodrx.com/depen
3. https://www.mayoclinic.org/diseases-conditions/epilepsy/symptoms-causes/syc-20350264
4. https://www.epilepsy.com/learn/types-seizures/absence-seizures
5. https://www.accessdata.fda.gov/scripts/cder/daf/index.cfm?fuseaction=history.historylist&productid=3970