Gabantin Tablet

Introduction

Gabantin Tablet 100 mg is a white to off-white crystalline solid with a pK a1 of 3.7 and a pK a2 of 11. It's structural formula is: C9H17NO2•HCl

Uses For

Gabantin Tablet 100 mg is used to treat partial seizures, post-herpetic neuralgia, and neuropathic pain associated with diabetic peripheral neuropathy.

Brand Name	Gabantin
Type	Tablet
Weight	100 mg
Generic	Gabapentin
Manufacturer	Sun Pharmaceutical Ltd.
Available in	English বাংলা

Mechanism of Action

Gabantin Tablet 100 mg binds to calcium channels located in the central nervous system. This action results in a reduction of the release of several neurotransmitters, including glutamate, substance P, and calcitonin gene-related peptide, which are important for controlling seizures and pain perception.

How Long Does It Take to Work?

The effects of gabapentin can begin to occur within a few hours of first taking the medication. In some cases, it may take up to two weeks for the full effects to be felt.

Absorption

Gabantin Tablet 100 mg is rapidly absorbed after oral administration, with peak plasma concentrations occurring within 1.5-2 hours.

Route of Elimination

Gabantin Tablet 100 mg is primarily eliminated via renal excretion and is eliminated in urine as unchanged drug.

Dosage

Neuropathic Pain: The treatment may be initiated as a single 300 mg dose on Day-1, than 300 mg twice on Day-2 and 300 mg thrice on Day-3. The dose can be subsequently be titrated up as needed for pain relief to a daily dose of 1800 mg (divided TID).

Epilepsy:

Patients over 12 years of age: the effective dose of Gabapentin is 900 to 1800 mg/day given in three divided doses. The starting dose is 300 mg three times a day.
Paediatric patients age 3-12 year: the starting dose should range from 10-15 mg/kg/day in 3 divided doses, and the effective dose reached by upward titration over a period of approximately three days.

The recommended starting dosage of gabapentin is:

For partial seizures in adults and adolescents aged 12 and older: 300mg orally three times a day for the first week; the dosage can then be increased up to a maximum of 2400mg/day.
For post-herpetic neuralgia in adults and adolescents aged 12 and older: the starting dosage is 300mg orally, three times a day; the dosage can then be increased up to a maximum of 2400mg/day.
For neuropathic pain associated with diabetic peripheral neuropathy in adults and adolescents aged 12 and older: the starting dosage is 300mg orally, followed by an escalation to 1800mg/day.

Administration

Gabantin Tablet 100 mg should be taken orally with or without food as prescribed by your doctor.

Side Effect

Common side effects of gabapentin include fatigue, dizziness, drowsiness, headache, nausea, blurred vision, dry mouth or changes in taste, constipation, nervousness, unsteadiness, insomnia, and weight gain.

Toxicity

Gabantin Tablet 100 mg is generally safe and well tolerated, however excessive doses may lead to acute toxicity. Symptoms of toxicity include confusion, disorientation, irregular heart rate, low blood pressure, and respiratory depression.

Precautions

Before taking gabapentin, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Interaction

Gabantin Tablet 100 mg may interact with other drugs and supplements. It is important to tell your doctor or pharmacist about all drugs and supplements you are taking, as they could affect how gabapentin works. These drugs include, but are not limited to: antacids, opioids, certain antibiotics, antifungals, anticonvulsants, MAO inhibitors, narcotics, or certain calcium channel blockers.

Disease Interaction

Using gabapentin in combination with other drugs that affect central nervous system activity may increase the risk of serious side effects. These drugs include, but are not limited to: cold or allergy medicines, narcotic pain medicines, sleeping pills, muscle relaxers, and medicines for seizures, depression, or anxiety.

Drug Interaction

Drug interactions may affect how gabapentin works in your body, and could increase your risk of serious side effects. These interactions include, but are not limited to: certain antibiotics, antifungals, anticonvulsants, MAO inhibitors, narcotics, or certain calcium channel blockers. Be sure to tell your doctor or pharmacist about all drugs and supplements you are taking.

Food Interactions

Eating certain foods can increase the absorption of gabapentin, thus increasing the level of the drug in your body, which in turn can increase the risk of serious side effects. Therefore, it is important to avoid foods high in fat or cholesterol when taking this medication.

Pregnancy Use

Gabantin Tablet 100 mg should not be used during pregnancy unless the benefit outweighs the risk. If you become pregnant while taking gabapentin, it is important to talk to your doctor about the potential risks.

Lactation Use

It is not known if gabapentin is excreted into human milk. Because of this, it is recommended that if you are breastfeeding, you should not use gabapentin.

Acute Overdose

Symptoms of an acute overdose may include confusion, disorientation, irregular heart rate, low blood pressure, and respiratory depression.

Contraindication

Gabantin Tablet 100 mg is contraindicated in patients who have known hypersensitivity to the drug. It should also be avoided in patients with a history of renal insufficiency, as gabapentin is primarily eliminated via renal excretion.

Use Direction

Take gabapentin exactly as prescribed by your doctor. Do not take more or less than what is recommended. Taking too much gabapentin can cause serious side effects. If you are taking any other medications or supplements, talk to your doctor before using gabapentin.