Mediclarum
Medicine guide

Gabapentin

400 mg · Capsule

  • Prescription only
Active substance
Gabapentin
Made by
ACI Healthcare USA, Inc.

Quoted from the official source. Not yet reviewed by Mediclarum — the leaflet in your pack is authoritative.

What it is for

This information is not included in the verified source. Open the official leaflet

How it works

From the US prescribing label for the same active substance (gabapentin). It describes the substance, not this exact product.

The precise mechanisms by which gabapentin produces its analgesic and antiepileptic actions are unknown.

Gabapentin is structurally related to the neurotransmitter gamma-aminobutyric acid (GABA) but has no effect on GABA binding, uptake, or degradation.

Peak level after2–3 h
Half-life5–7 h
Mostly cleared after≈ 30 hfive half-lives — our arithmetic
PeakHalf gone30 h0
The shape is a standard model drawn from the two times above, not a measurement. How fast a medicine acts and wears off also depends on the dose, the form and the person.
How the body breaks it down

All pharmacological actions following gabapentin administration are due to the activity of the parent compound; gabapentin is not appreciably metabolized in humans.

How it leaves the body

Gabapentin is eliminated from the systemic circulation by renal excretion as unchanged drug.

With food

Food has only a slight effect on the rate and extent of absorption of gabapentin (14% increase in AUC and C max ).

Quoted from the prescribing label, sections “Mechanism of Action” and “Pharmacokinetics”. DailyMed · 2026-09-11

Safety of the active substance

From the US prescribing label for the same active substance (gabapentin). It describes the substance, not this exact product.

Must not be used by
  • Gabapentin capsules are contraindicated in patients who have demonstrated hypersensitivity to the drug or its ingredients.
  • Known hypersensitivity to gabapentin or its ingredients ( 4 )
Most common side effects

The most common adverse reactions associated with the use of gabapentin in adults, not seen at an equivalent frequency among placebo-treated patients, were dizziness, somnolence, and peripheral edema.

Quoted from the US prescribing label for the same active substance. Your own pack’s leaflet is the authority for your product. DailyMed

Same active substance, strength and form in other countries

Matched on active substance, strength and kind of form only. This is not a statement that the products are equivalent or interchangeable: other ingredients, release and approved uses can differ — ask a pharmacist before swapping.

Medicine passport: one printable page to show a pharmacist abroad

Canada19 matching products

Every strength and form (86)

Details

Made byACI Healthcare USA, Inc.
Active substanceGabapentin
Strength400 mg
FormCapsule
RouteOral
Packs100 CAPSULE in 1 BOTTLE, PLASTIC · 500 CAPSULE in 1 BOTTLE, PLASTIC
NDC71093-122

Source: NDC Directory · 2026-09-13 · not reviewed by a clinician

Source: US Food and Drug Administration, NDC Directory. Reuse terms: US government work (FDA).

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Other strengths and forms

322 products are sold under this name. Grouped by form; a number on a strength means several companies make it.

Show all forms · 6 forms

Same active substance

These contain the same substance. That does not mean one can replace another — ask a pharmacist.

Gaba 300-EzsPrescription onlyKit PureTek Corporation · GabapentinGabapentin250 mg/5mLPrescription onlySolution PAI Holdings, LLC dba PAI Pharma · GabapentinGabapentin100 mgPrescription onlyCapsule Teva Pharmaceuticals, Inc. · GabapentinGabapentin300 mgPrescription onlyCapsule Teva Pharmaceuticals, Inc. · GabapentinGabapentin400 mgPrescription onlyCapsule Teva Pharmaceuticals, Inc. · GabapentinGabapentin100 mgPrescription onlyCapsule Major Pharmaceuticals · Gabapentin

See every product with Gabapentin