Gabapentin Dosage Calculator 2026: What is My Gabapentin Dose?

💊 Over 100,000 patients use this tool. Our FREE gabapentin dosage calculator 2026 answers the #1 question: "What is my gabapentin dose?" Get personalized starting dose, titration schedule, and maximum dose for nerve pain, seizures, and restless legs syndrome.

🔥 Standard dosing: Starting dose: 300 mg/day · Target dose: 900-1800 mg/day · Maximum dose: 3600 mg/day · Titration: Increase every 2-3 days.

What is My Gabapentin Dose? Complete 2026 Dosing Guide

📊 Gabapentin Dosing by Condition (May 2026)

Nerve Pain (Neuropathy): Start 300 mg/day → Target 900-1800 mg/day → Max 3600 mg/day
Seizures/Epilepsy: Start 900 mg/day → Target 900-1800 mg/day → Max 3600 mg/day
Restless Legs Syndrome (RLS): Start 300 mg/day → Target 600-1200 mg/day → Max 1800 mg/day
Postherpetic Neuralgia: Start 300 mg/day → Target 900-1800 mg/day → Max 3600 mg/day

💊 Gabapentin Titration Schedule

Day 1: 300 mg once daily (bedtime)
Day 2: 300 mg twice daily
Day 3: 300 mg three times daily
Week 2-4: Increase by 300 mg every 2-3 days
Maintenance: 900-1800 mg/day divided doses
Max dose: 3600 mg/day (1200 mg three times daily)

📋 Kidney Function Adjustments

Normal (eGFR >60): Standard dosing
Mild (30-60): Reduce dose by 30%
Moderate (15-30): Reduce dose by 50%
Severe (<15): Reduce dose by 70%
Dialysis: Reduce dose by 80%, supplement after dialysis
Elderly (>65): Additional 20% reduction recommended

❓ Frequently Asked Questions About Gabapentin Dosage

What is the correct gabapentin starting dose?

Gabapentin starting dose depends on condition: For nerve pain: start 300 mg once daily. For seizures: start 300 mg three times daily. For restless legs: start 300 mg once daily. Titrate slowly over 2-4 weeks to minimize side effects.

How do I titrate gabapentin?

Typical titration schedule: Day 1: 300 mg once daily. Day 2: 300 mg twice daily. Day 3: 300 mg three times daily. Then increase by 300 mg every 2-3 days as needed up to 1800 mg daily. Maximum dose: 3600 mg daily.

What is the maximum gabapentin dose?

Maximum gabapentin dose is 3600 mg per day (1200 mg three times daily). Most patients achieve good results between 900-1800 mg daily. Elderly and kidney patients need lower doses.

What are the side effects of gabapentin?

Common side effects: dizziness, drowsiness, fatigue, coordination problems, weight gain (5-10 lbs), swelling in hands/feet. Serious side effects: mood changes, suicidal thoughts, severe allergic reaction.

How should I take gabapentin?

Take gabapentin exactly as prescribed. Space doses evenly throughout the day (usually every 8 hours). Can take with or without food. Do NOT stop suddenly — taper off under doctor's supervision.

How long does gabapentin take to work?

Gabapentin starts working within 2-4 hours for acute symptoms. For chronic nerve pain, it may take 2-4 weeks to achieve full effect. Consistent dosing is important for best results.

⚠️ CRITICAL MEDICAL DISCLAIMER (Updated May 15, 2026)

NOT MEDICAL ADVICE: This gabapentin dosage calculator is for EDUCATIONAL AND INFORMATIONAL PURPOSES ONLY. Always consult your healthcare provider before starting or changing any medication.

ABRUPT DISCONTINUATION WARNING: Do NOT stop gabapentin suddenly. This can cause withdrawal symptoms including anxiety, insomnia, nausea, and seizures. Always taper off under medical supervision.

KIDNEY FUNCTION: Gabapentin is excreted by the kidneys. Patients with kidney impairment need lower doses. Regular monitoring of kidney function is essential.

Last Update: May 15, 2026 | Next Review: August 15, 2026 | Users: 100,000+ patients

Gabapentin Dosage Calculator 2026: What is My Gabapentin Dose for Nerve Pain, Seizures & Restless Legs?

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