Fosphenytoin Benefits & Uses

Fosphenytoin is used to treat the following -

Main Benefits

Epilepsy

Other Benefits

Epilepsy

Fosphenytoin Dosage & How to Take

This is the usual dosage recommended in most common treatment cases. Please remember that every patient and their case is different, so the dosage can be different based on the disease, route of administration, patient's age and medical history.

Find the right dosage based on disease and age

Age Group	Dosage
Adult	Disease: Epilepsy (tonic clonic or grand mal seizures) Before or After Meal: As advised by a physician Single Maximum Dose: 20 mg/kg Dosage Route: Parenteral Frequency: doctor administered Course Duration: As directed by the doctor Special Instructions: As prescribed by the doctor
Geriatric	Disease: Epilepsy Before or After Meal: As advised by a physician Single Maximum Dose: 20 mg/kg Dosage Route: Parenteral Frequency: doctor administered Course Duration: As directed by the doctor Special Instructions: As prescribed by the doctor
13 - 18 years (Adolescent)	Disease: Epilepsy Before or After Meal: As advised by a physician Single Maximum Dose: 15 mg/kg Dosage Route: Parenteral Frequency: doctor administered Course Duration: As directed by the doctor Special Instructions: As prescribed by the doctor
2 - 12 years (Child)	Disease: Epilepsy Before or After Meal: As advised by a physician Single Maximum Dose: 15 mg/kg Dosage Route: Parenteral Frequency: doctor administered Course Duration: As directed by the doctor Special Instructions: As prescribed by the doctor
Infant (1 month to 2 years)	Disease: Epilepsy Before or After Meal: As advised by a physician Single Maximum Dose: 15 mg/kg Dosage Route: Parenteral Frequency: doctor administered Course Duration: As directed by the doctor Special Instructions: As prescribed by the doctor
Neonates (0 to 1 month)	Disease: Epilepsy Before or After Meal: As advised by a physician Single Maximum Dose: 10 mg/kg Dosage Route: Parenteral Frequency: doctor administered Course Duration: As directed by the doctor Special Instructions: As prescribed by the doctor

Fosphenytoin Side Effects

Based on research, the following side effects have been observed when Fosphenytoin is used -

Moderate

Blurred vision
Nystagmus (Involuntary Eye Movement)
Decreased blood pressure
Euphoria

Mild

Headache
Nausea or vomiting
Sleepiness
Dry Mouth
Dizziness
Itching or burning
Paresthesia
Tremor

Common

Altered taste
Ringing in ears

Unknown

Uncoordinated Body Movements
Slurred speech

Fosphenytoin Related Warnings

Is the use of Fosphenytoin safe for pregnant women?

Fosphenytoin can cause unwanted side effects in pregnant women. If you experience any side effects, stop taking Fosphenytoin right away. Take your doctor's advice before taking it again.

Moderate
Is the use of Fosphenytoin safe during breastfeeding?

Fosphenytoin may have very limited harmful effects for breastfeeding women.

Mild
What is the effect of Fosphenytoin on the Kidneys?

There are no side effects of Fosphenytoin on the kidneys.

Safe
What is the effect of Fosphenytoin on the Liver?

Fosphenytoin has very mild side effects on the liver.

Mild
What is the effect of Fosphenytoin on the Heart?

Very few cases of side effects of Fosphenytoin on the heart have been reported.

Mild

Severe Interaction of Fosphenytoin with Other Drugs

Fosphenytoin should not be taken with following medicines due to severe side effects it may cause to patients -

Severe

Cimetidine

Moderate

Amiodarone

Disulfiram

Chloramphenicol

Diazepam

Fosphenytoin Contraindications

If you are suffering from any of the following diseases, you should not take Fosphenytoin unless your doctor advises you to do so -

Depression
Suicidal Tendency
Hypoglycemia (Low Blood Sugar)
Hodgkin Lymphoma
Hemolytic Anemia
Liver Disease
Kidney Disease

Frequently asked Questions about Fosphenytoin

Is this Fosphenytoin habit forming or addictive?

Yes, Fosphenytoin cause dependence in some cases. Talk to your doctor before taking it.

Yes
Is it safe to drive or operate heavy machinery when consuming?

After taking Fosphenytoin you may feel sleepy. So it is not advised to perform these activities.

Dangerous
Is it safe?

Yes, but consume Fosphenytoin only on doctor's advice.

Safe, but take only on Doctor's advise
Is it able to treat mental disorders?

Yes, this Fosphenytoin works for mental disorders.

Yes

Fosphenytoin Interactions with Food and Alcohol

Interaction between Food and Fosphenytoin

When consumed with certain foods, Fosphenytoin may take longer to have an effect. Contact your doctor about this.

Mild
Interaction between Alcohol and Fosphenytoin

Consumption of alcohol and Fosphenytoin together may have severe effects on your health.

Severe

See all substitutes for Fosphenytoin

This medicine data has been created by -

Vikas Chauhan

B.Pharma, Pharmacy
5 Years of Experience

References

US Food and Drug Administration (FDA) [Internet]. Maryland. USA; Package leaflet information for the user; Cerebyx® (Fosphenytoin Sodium)

KD Tripathi. [link]. Seventh Edition. New Delhi, India: Jaypee Brothers Medical Publishers; 2013: Page No 415

April Hazard Vallerand, Cynthia A. Sanoski. [link]. Sixteenth Edition. Philadelphia, China: F. A. Davis Company; 2019: Page No 598-600

Fosphenytoin Injection