Postherpetic Neuralgia — Patent Landscape

Aggregated US Orange Book patent estate across every approved drug for postherpetic neuralgia. 28 active patents protecting 4 drugs from 4+ originators. First major cliff: 2028. Daily refresh.

4
Approved drugs
28
Active US patents
60/100
Avg vulnerability
—
Annual revenue covered

Originators in Postherpetic Neuralgia

Companies holding active patents on drugs approved for this indication. Click through to each company's full patent dashboard.

Pfizer Inc. 18 patents Azurity 4 patents Fresenius Kabi 4 patents Averitas 2 patents

Cliff calendar — next 15 years

Patent expiries per year across all drugs treating postherpetic neuralgia. Each bar = one year. Y-axis scaled to peak year (12 patents).

12
26
9
27
1
28
3
29
1
30
2
35

Approved drugs ranked by patent estate

Drug Originator Active patents Avg vuln Revenue First cliff
Lyrica
Pregabalin
 Pfizer Inc. 18 60 — 2026-11-02
Horizant
GABAPENTIN ENACARBIL
 Azurity 4 57 — 2026-11-10
Lignospan Forte
Lidocaine Hydrochloride
 Fresenius Kabi 4 71 — 2026-07-24
Qutenza
CAPSAICIN
 Averitas 2 52 — 2028-12-15

Most attackable patents

Highest vulnerability scores in the indication — paragraph IV / IPR / design-around candidates.

Patent Drug Type Vuln Expiry
8759401 Lignospan Forte method of use 85 2026-07-24
8795725 Horizant method of use 73 2029-06-10
8795725 Horizant method of use 73 2029-06-10
8540665 Lignospan Forte method of use 73 2029-10-22
10022447 Lyrica method of use 63 2026-11-02
8945620 Lyrica method of use 63 2026-11-02
10022447 Lyrica method of use 63 2026-11-02
8945620 Lyrica method of use 63 2026-11-02
10022447 Lyrica method of use 63 2026-11-02
8945620 Lyrica method of use 63 2026-11-02

Strongest defences

Lowest vulnerability scores — pillars of the indication's IP fortress.

Patent Drug Type Vuln Expiry
8026279 Horizant composition of matter 27 2026-11-10
8026279 Horizant composition of matter 27 2026-11-10
9144559 Lyrica formulation 43 2026-11-02
9144559 Lyrica formulation 43 2026-11-02
9144559 Lyrica formulation 43 2026-11-02
8821920 Qutenza formulation 48 2030-03-26
9226903 Qutenza formulation 55 2028-12-15
9370622 Lignospan Forte method of use 62 2035-09-28
9358338 Lignospan Forte method of use 62 2035-04-27
9144559 Lyrica other 63 2027-05-02

Related