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This is an information resource — not medical advice.

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🚨 If you are experiencing a medical emergency or think you may have taken too much of a medication, call emergency services (911 in the US) or go to your nearest emergency room immediately.

Anticonvulsant / Neuropathic Pain Agent🔒 Prescription only

What Is Pregabalin (Lyrica) Used For?

Brand names: Lyrica

Pregabalin is used to treat nerve pain, fibromyalgia, epilepsy, and generalised anxiety disorder. It is related to gabapentin but more potent and predictably absorbed.

What is Pregabalin used for?

Neuropathic pain (diabetic neuropathy, postherpetic neuralgia)
Fibromyalgia
Epilepsy (partial seizures, adjunctive therapy)
Generalised anxiety disorder (GAD)
Central neuropathic pain (spinal cord injury)

How does Pregabalin work?

Pregabalin binds to the alpha-2-delta subunit of voltage-gated calcium channels in nerve cells, reducing release of pain-transmitting neurotransmitters. Its absorption is more predictable than gabapentin — it doesn't have the same absorption ceiling.

Dosage information

💊Available forms

25mg capsules
50mg capsules
75mg capsules
100mg capsules
150mg capsules
+4 more

📏Typical dosage

Neuropathic pain: start 75mg twice daily, increase to 150–300mg twice daily over 1–2 weeks. Fibromyalgia: 75–225mg twice daily. Anxiety: 150–600mg/day in divided doses.

⚠️ Dosage varies by individual. Always follow your doctor's or pharmacist's instructions — never self-dose based on general information.

Side effects

Common

Dizziness (very common)
Drowsiness
Weight gain (common and often significant)
Peripheral oedema (swelling of hands and feet)
Dry mouth
Blurred vision
Difficulty concentrating

⚠️ Serious — contact your doctor

Respiratory depression when combined with opioids or CNS depressants
Suicidal thoughts (black box warning)
Withdrawal syndrome if stopped suddenly
Dependency and misuse potential (controlled substance in many countries)
Heart failure exacerbation

Important warnings

Black box warning: serious breathing problems when combined with opioids, benzodiazepines, or alcohol

Controlled substance in many countries — significant misuse and dependency potential

Do NOT stop suddenly — risk of seizures and withdrawal symptoms

Causes significant weight gain — discuss with your doctor if this is a concern

Impairs driving — do not drive until stable on medication

Drug interactions

These substances may interact with Pregabalin. This is not a complete list — always tell your doctor and pharmacist ALL medications and supplements you take.

Opioids (respiratory depression — very dangerous)Benzodiazepines (sedation)AlcoholACE inhibitors (increased oedema risk)Other CNS depressantsThiazolidinediones (weight gain and oedema)

Pregnancy & breastfeeding

🤰 Avoid — animal studies show potential harm; discuss urgently with your doctor

Always consult your doctor or obstetrician before taking any medication during pregnancy or while breastfeeding.

Frequently asked questions

What is pregabalin (Lyrica) used for?

Pregabalin treats nerve pain (from diabetes, shingles, spinal cord injury), fibromyalgia, epilepsy, and generalised anxiety disorder.

What's the difference between pregabalin and gabapentin?

Pregabalin is more potent and has more predictable absorption (linear, not dose-dependent like gabapentin). It's generally considered more effective for anxiety and fibromyalgia. However, it has a higher misuse potential and is controlled in more countries.

Does pregabalin cause weight gain?

Yes — weight gain is a very common side effect, often significant. It can cause both increased appetite and fluid retention. Monitoring diet and discussing management with your doctor is important.

Is pregabalin addictive?

Pregabalin has significant misuse and dependency potential. It is a controlled substance in many countries. Withdrawal symptoms include insomnia, nausea, headache, and anxiety. Never stop suddenly.

How long does pregabalin take to work for nerve pain?

Some pain relief may be noticed within the first week. Maximum benefit typically takes 2–4 weeks. If there's no significant improvement after 2–4 weeks at a therapeutic dose, discuss alternatives with your doctor.

Related medications

💊GabapentinAnticonvulsant / Neuropathic Pain Agent 💊AmitriptylineTricyclic Antidepressant (TCA)💊SertralineSSRI 💊TramadolOpioid Analgesic / SNRI

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This is an information resource — not medical advice.

🚨 If you are experiencing a medical emergency or think you may have taken too much of a medication, call emergency services (911 in the US) or go to your nearest emergency room immediately.

Information on this page is sourced from general pharmaceutical references and is provided for educational purposes only. Drug information may change — always verify with your pharmacist or prescriber. PillCodex.com is not affiliated with any pharmaceutical company.