Medically reviewed by: Vitthia Rama Murti, BPharm Hons (University of Cyberjaya), RPh 15632 — Chief of Staff & Compounding Pharmacist, Lynnity Compounding Pharmacy.
Last reviewed: 27 May 2026.
Diabetic peripheral neuropathy — common and under-treated
Diabetic peripheral neuropathy (DPN) affects up to 50% of people with diabetes over time. The most common form — distal symmetric polyneuropathy — produces burning, tingling, “pins and needles”, or shooting pain in the feet and lower legs. Pain is often worst at night, and standard analgesics (paracetamol, NSAIDs) rarely work because the mechanism isn’t tissue inflammation — it’s damaged nerve fibres misfiring.
Standard treatment
International guidelines (ADA, AAN) recommend:
- Glycaemic control — slows progression but rarely reverses existing pain.
- First-line systemic medications:
- Pregabalin (Lyrica) or gabapentin.
- Duloxetine (SNRI).
- Tricyclic antidepressants (amitriptyline, nortriptyline).
- Topical agents:
- Capsaicin 0.075% (or 8% patch in specialist settings).
- Lidocaine 5% patch.
- Compounded multi-active creams (this page).
- Severe cases: opioids (last resort), spinal cord stimulation.
The case for compounded topical therapy
The challenge with oral pregabalin, gabapentin, and duloxetine is side effects — drowsiness, dizziness, weight gain, GI upset, sexual dysfunction. Many patients tolerate the low end of the dose range, get partial relief, can’t tolerate the higher dose, and discontinue.
A compounded topical applies the same actives directly to the painful nerves in the foot with minimal systemic absorption — so the systemic side effects are dramatically reduced. The catch: not every drug penetrates skin well, and the evidence base for topical compounded creams in DPN is more clinician-experience than randomised-trial. Most experienced pain specialists consider them a useful add-on or alternative.
Common Lynnity compounds for DPN
| Compound | Mechanism targets |
|---|---|
| Gabapentin 6% + lidocaine 5% + ketamine 5% cream | Voltage-gated calcium channels + sodium channels + NMDA receptors |
| Amitriptyline 2% + ketamine 1% cream | Sodium channels + NMDA + monoamines |
| Lidocaine 5% + diclofenac 3% gel | Sodium channels + inflammation |
| Capsaicin 0.075% cream (Lynnity-compounded, fragrance-free) | TRPV1 receptor desensitisation |
| Pluronic Lecithin Organogel (PLO) base | Vehicle of choice for transdermal pain compounds |
How to use
- Apply a thin layer to the painful area (typically the dorsum and sole of the foot) 2–3 times per day.
- Wash hands after application unless treating the hands themselves.
- Do not apply heat to the treated area.
- Onset typically 30–60 minutes; duration 6–12 hours.
- Effect builds over 1–2 weeks of consistent use.
Safety
- Compounded ketamine in topical form has low systemic absorption but is a controlled substance — prescription required.
- Capsaicin causes burning on first applications — usually subsides after 5–7 days. Wear gloves during application.
- Stop and seek medical advice if rash, blistering, or worsening pain.
When to escalate
If a compounded topical gives less than 30% pain reduction after 4 weeks of consistent use, talk to your prescriber. Options include changing the active mix, adding a second topical, or moving to systemic therapy.
See also: Pain Management service page.
FAQ
Will a topical pain cream cure my diabetic neuropathy?
No. Diabetic neuropathy is rarely “cured”. The goal of compounded topicals is meaningful pain reduction (30–70%) with much lower side-effect burden than oral therapy.
How does a topical gabapentin cream differ from oral gabapentin?
Oral gabapentin produces systemic effects — drowsiness, dizziness, weight gain. Topical gabapentin reaches the local nerve fibres with minimal systemic absorption, so the systemic side effects are largely avoided.
Can I use a compounded pain cream alongside oral pregabalin?
Often yes, with your doctor’s awareness. Some patients use topical for breakthrough pain at night while taking lower-dose oral pregabalin in the daytime.
Why does my cream contain ketamine?
Topical ketamine acts on NMDA receptors in peripheral nerves — a different mechanism than the sodium-channel and calcium-channel blockers in the same cream. Multi-mechanism creams target multiple pain pathways at once. The systemic absorption is very low.
How long does a 60 g jar last?
With 2–3 applications per day to one foot, typically 4–6 weeks.