Neuropathic pain is pain caused by damage or dysfunction of the nervous system itself, rather than by tissue injury. It’s usually described as burning, tingling, electric, shooting, or stabbing—often in patterns that don’t match the location of the original injury. It’s also notoriously difficult to treat. Standard pain medications often don’t work well, and patients with neuropathic pain frequently end up trying multiple approaches before finding adequate relief.

This page describes what neuropathic pain is, what causes it, the typical treatment hierarchy, and where compounded medications fit when standard approaches aren’t enough.

What Neuropathic Pain Is

The pain you feel from a cut, a sprain, or arthritis comes from damaged tissue—nociceptors (pain-sensing nerve endings) detect the damage and signal the brain. This is “nociceptive” pain, and most pain medications work by interfering with this signaling.

Neuropathic pain is different. The nerves themselves are damaged, dysfunctional, or sensitized. They send pain signals even without ongoing tissue damage. The pain may persist long after the original injury has healed. Neuropathic pain has characteristic features:

• Quality: burning, tingling, electric shock-like, shooting, stabbing, prickling, numbing
• Distribution: often follows nerve territories rather than tissue boundaries
• Provoked sensations: light touch may feel painful (allodynia), or normally painful stimuli may feel disproportionately intense (hyperalgesia)
• Spontaneous pain: may occur without any obvious trigger
• Variable response to standard analgesics: NSAIDs and acetaminophen often don’t work well

Common Causes of Neuropathic Pain

Diabetic Peripheral Neuropathy

One of the most common causes. Long-standing diabetes—particularly when blood sugar has been poorly controlled—damages small nerves in the feet and hands, producing characteristic burning, tingling, and numbness. Approximately half of people with diabetes develop some degree of neuropathy over time.

Post-Herpetic Neuralgia

After a shingles outbreak, nerve damage in the affected area can produce chronic neuropathic pain that persists for months or years. Older adults are at higher risk. Vaccination against shingles reduces this risk.

Chemotherapy-Induced Peripheral Neuropathy

Some chemotherapy drugs (especially platinum-based agents and taxanes) damage peripheral nerves. Pain may begin during treatment and continue afterward. Some patients have permanent neuropathy.

Post-Surgical Neuropathic Pain

Surgery can damage nerves at or near the surgical site. Persistent neuropathic pain after surgery is more common with certain procedures (mastectomy, thoracotomy, hernia repair, amputation).

Trigeminal Neuralgia

A specific facial pain syndrome involving the trigeminal nerve. Characterized by sudden, severe, electric shock-like pains in the face. Often responds to specific medications (carbamazepine).

Radiculopathy

Compression or irritation of nerve roots—often by herniated discs or spinal stenosis. Produces pain following the affected nerve’s distribution (sciatica is a common example).

Complex Regional Pain Syndrome (CRPS)

A rare but severe regional pain syndrome that can develop after injury or surgery. Features include burning pain, swelling, color and temperature changes, and progressive sensitivity.

Other Causes

• Multiple sclerosis
• Stroke (central neuropathic pain)
• Spinal cord injury
• Nerve injuries from trauma
• HIV-related neuropathy
• Idiopathic small fiber neuropathy
• Peripheral neuropathy from various other medical conditions

Standard Treatment Approach

Neuropathic pain treatment usually starts with the underlying cause when possible (controlling diabetes, treating shingles promptly, addressing nerve compression). Beyond cause-directed treatment, several medications are used:

First-Line Pharmacological Options

The medications with the most evidence for neuropathic pain include:

• Gabapentinoids (gabapentin, pregabalin) — affect calcium channels involved in nerve signaling. Common starting medications for neuropathic pain.
• SNRIs (duloxetine, venlafaxine) — affect serotonin and norepinephrine pathways. Duloxetine has specific approval for diabetic neuropathy.
• Tricyclic antidepressants (amitriptyline, nortriptyline) — long-established for neuropathic pain. Effective but with side effect profiles that limit some patients (anticholinergic effects, sedation).

Second-Line Options

• Topical lidocaine (5% patches commercially available; particularly useful for localized neuropathic pain like post-herpetic neuralgia)
• Topical capsaicin (8% patches available with special access; over-the-counter creams at lower concentrations)
• Tramadol in some cases, balancing benefits against opioid considerations
• Carbamazepine for trigeminal neuralgia specifically

Other Approaches

• Physical therapy and graded exercise
• Pain management programs
• Cognitive behavioral therapy for chronic pain
• Specific procedures (nerve blocks, neuromodulation, surgical decompression in some cases)
• Stricter management of underlying conditions (diabetes control, etc.)

When Standard Approaches Aren’t Enough

Despite the available options, many patients with neuropathic pain don’t get adequate relief from standard treatment. Common scenarios:

• Maximum tolerated doses of first-line medications produce only partial relief
• Side effects (sedation, weight gain, GI effects, cognitive effects) limit the dose that can be tolerated
• Multiple oral medications still leave significant breakthrough pain
• The patient prefers to avoid systemic medications because of medical conditions, polypharmacy concerns, or personal preference
• Localized neuropathic pain doesn’t seem to need (or warrant) systemic treatment

This is where compounded medications are sometimes considered as adjuncts or alternatives.

Where Compounded Medications Fit

Compounded Topical Pain Creams

For localized neuropathic pain (peripheral neuropathy in feet and hands, post-herpetic neuralgia in a specific dermatome, post-surgical neuropathic pain at a specific site), multimodal topical creams can provide localized relief without systemic side effects.

Common ingredients in topical neuropathic pain preparations:

• Ketamine — NMDA antagonist effect on neuropathic pain pathways
• Gabapentin — same mechanism as oral but applied locally
• Amitriptyline — local effect on nerve pain pathways without the systemic side effects of oral amitriptyline
• Lidocaine — local anesthesia
• Capsaicin at low concentrations

These can be combined into multimodal preparations addressing several pain mechanisms simultaneously.

Low-Dose Naltrexone (LDN)

For some neuropathic pain conditions—particularly fibromyalgia (which has a significant neuropathic component) and certain inflammatory neuropathies—LDN is sometimes considered. Evidence is strongest for fibromyalgia; less robust for other neuropathic pain conditions. See our LDN page for more detail.

Custom Combination Capsules

For patients on multiple oral neuropathic pain medications, certain compatible drugs can sometimes be combined into a single capsule, simplifying complex regimens. Stability and compatibility must be verified.

Custom Strengths

For patients titrating up or down on neuropathic pain medications, custom-strength capsules can provide intermediate doses not available commercially.

Realistic Expectations for Neuropathic Pain

Neuropathic pain is one of the more difficult-to-treat pain conditions. Honest framing of what most patients experience:

• Most treatments produce partial improvement, not complete relief. A “good response” to neuropathic pain treatment is often a 30–50% reduction in pain intensity, not elimination of pain.
• Combination approaches usually outperform single treatments. Patients often end up on combinations of medications, sometimes with topicals and other approaches added.
• Trial-and-error is common. What works for one patient with neuropathic pain may not work for another. Several medication trials before finding an adequate regimen is normal.
• Time investment matters. Most neuropathic pain medications need weeks at adequate doses before their effects become clear. Premature discontinuation is a common reason treatments are perceived as ineffective.
• Non-pharmacological components help. Sleep, exercise, stress management, and mood support often improve neuropathic pain outcomes when added to medications.

Talking to Your Prescriber

If you have neuropathic pain that isn’t well-controlled, useful framings for the conversation:

• Be specific about what isn’t working—is the pain still high, are side effects intolerable, or both?
• Document what you’ve tried and the outcomes
• Ask what categories of treatment haven’t been tried yet
• Ask whether topical compounded options might be added or substituted
• Discuss whether a referral to a pain specialist might help if your situation is complex
• Be honest about your goals—total pain relief is rarely achievable; meaningful improvement in pain and function is the realistic target

Where to Learn More

Resources for chronic neuropathic pain in Canada:

• Pain BC (painbc.ca) — chronic pain education and self-management resources
• The Canadian Pain Society (canadianpainsociety.ca) — information about chronic pain
• Your local pain clinic, if your prescriber refers you
• Physical therapists and occupational therapists with pain experience

If your prescriber is considering compounded medications for your neuropathic pain, our pharmacy can prepare what they prescribe and discuss formulation considerations with them.