Summary
Postherpetic neuralgia (MONDO:0041052) is a disease with 3 cohort genes (5 GWAS associations across 1 studies) and 96 clinical trials. Top therapeutic interventions include pregabalin, capsaicin, and lidocaine.
At a glance
- Cohort genes: 3
- GWAS associations: 5
- Clinical trials: 96
Clinical features
No curated clinical features (Orphanet) for this disease.
Identifiers
Disease identifiers
| Field | Value |
|---|
| Canonical name | postherpetic neuralgia |
| Mondo ID | MONDO:0041052 |
| Orphanet | 466673 |
| ICD-11 | 1797210650 |
| SNOMED CT | 2177002 |
| UMLS | C0032768 |
| MedGen | 18589 |
| GARD | 0027961 |
| Is cancer (heuristic) | no |
Also known as: postherpetic neuralgia
Data availability: 5 GWAS associations (1 study).
Disease family
Classification path: disease › human disease › disease by body system or component › nervous system disorder › peripheral nervous system disorder › peripheral neuropathy › neuralgia › post-infectious neuralgia › postherpetic neuralgia
Genetics & variants
GWAS landscape
5 GWAS associations across 1 studies. Top hits map to 4 distinct genes (as reported by GWAS).
Top associations by p-value
| rsID | p-value | Gene | Risk allele | Odds ratio |
|---|
| rs4773840 | 2e-07 | ABCC4 | ? | |
| rs10114508 | 3e-06 | RN7SL100P - PLAA | ? | |
| rs12458523 | 6e-06 | TMEM241, CABLES1 | ? | |
| rs2167151 | 6e-06 | NRXN3 | ? | |
| rs10851014 | 6e-06 | LINC02460 - RPL17P37 | ? | |
Top studies (by case count)
| Study | Lead author | Year | Cases | Controls | Title |
|---|
| GCST012124 | Nishizawa D | 2021 | 89 | 0 | Genome-wide association study identifies candidate loci associated with chronic pain and postherpetic neuralgia. |
Variant details and genetic-evidence tiers
Tier distribution (top 50 variants)
| Tier | Variants |
|---|
| Tier 1: coding | 0 |
| Tier 2: splice/UTR | 0 |
| Tier 3: regulatory | 0 |
| Tier 4: intronic/intergenic | 5 |
MAF distribution
| Bucket | Variants |
|---|
| common (>=0.05) | 5 |
| low_freq (0.01-0.05) | 0 |
| rare (<0.01) | 0 |
| unknown | 0 |
Functional consequences
| Consequence | Count |
|---|
| intron_variant | 3 |
| intergenic_variant | 2 |
Top variants
| rsID | Chr | Pos | Alleles | MAF | Consequence | Gene | p-value | Tier |
|---|
| rs4773840 | 13 | 95118171 | G>A | 0.05 | intron_variant | ABCC4 | 2e-07 | Tier 4: intronic/intergenic |
| rs10114508 | 9 | 26902595 | T>A,C,G | 0.05 | intergenic_variant | RN7SL100P - PLAA | 3e-06 | Tier 4: intronic/intergenic |
| rs12458523 | 18 | 23240764 | A>C,G | 0.05 | intron_variant | TMEM241, CABLES1 | 6e-06 | Tier 4: intronic/intergenic |
| rs2167151 | 14 | 79396990 | T>C | 0.05 | intron_variant | NRXN3 | 6e-06 | Tier 4: intronic/intergenic |
| rs10851014 | 12 | 118692412 | T>C | 0.05 | intergenic_variant | LINC02460 - RPL17P37 | 6e-06 | Tier 4: intronic/intergenic |
Genes & proteins
Mendelian disease overlap and somatic drivers
GenCC: 0 · Orphanet: 0 · OMIM-shared: 0 · Dual-evidence (GWAS+Mendelian): 0
Cohort genes → proteins
3 cohort genes, 3 distinct canonical proteins.
Evidence partition
Cohort genes (full)
| Symbol | HGNC | Ensembl | UniProt | Name | Evidence |
|---|
| CABLES1 | HGNC:25097 | ENSG00000134508 | Q8TDN4 | CDK5 and ABL1 enzyme substrate 1 | gwas |
| ABCC4 | HGNC:55 | ENSG00000125257 | O15439 | ATP-binding cassette sub-family C member 4 | gwas |
| NRXN3 | HGNC:8010 | ENSG00000021645 | Q9HDB5 | Neurexin-3-beta | gwas |
Cohort function summary
Lead sentence per gene, UniProt-curated.
| Symbol | Protein name | Function (lead sentence) |
|---|
| CABLES1 | CDK5 and ABL1 enzyme substrate 1 | Cyclin-dependent kinase binding protein. |
| ABCC4 | ATP-binding cassette sub-family C member 4 | ATP-dependent transporter of the ATP-binding cassette (ABC) family that actively extrudes physiological compounds and xenobiotics from cells. |
| NRXN3 | Neurexin-3-beta | Neuronal cell surface protein that may be involved in cell recognition and cell adhesion. |
Protein-family classification
Druggable: 1 · Difficult: 0 · Unknown: 2 · Druggable fraction: 0.33
Family distribution
Cohort families vs a genome-wide background (hypergeometric, BH-FDR; fold = observed/expected). Counts kept; sorted by enrichment, so the catch-all Other/Unknown bucket no longer leads.
| Family | Genes | Fold | FDR |
|---|
| Transporter | 1 | 25.9× | 0.076 |
| Other/Unknown | 2 | 1.2× | 0.587 |
Per-gene assignment
| Symbol | Family | Druggable? | EC | InterPro (top 3) |
|---|
| CABLES1 | Other/Unknown | no | | Cyclin_N, CABLES1/2, Cyclin-like_sf |
| ABCC4 | Transporter | yes | 7.6.2.2 | ABC_transporter-like_ATP-bd, AAA+_ATPase, ABC1_TM_dom |
| NRXN3 | Other/Unknown | no | | Laminin_G, Neurexin-like, ConA-like_dom_sf |
Expression context
Cohort genes with no expression data: 0.
3 cohort genes are a single-cell marker in ≥1 SCXA experiment.
Breadth distribution (Bgee present_calls)
| Bucket | Genes |
|---|
| narrow (1-5 tissues) | 0 |
| moderate (6-20) | 0 |
| broad (>20) | 3 |
| unknown | 0 |
Top tissues across cohort
| Tissue | Cohort genes |
|---|
| caudate nucleus | 1 |
| nucleus accumbens | 1 |
| putamen | 1 |
| buccal mucosa cell | 1 |
| palpebral conjunctiva | 1 |
| secondary oocyte | 1 |
| cerebellar vermis | 1 |
| substantia nigra pars compacta | 1 |
| substantia nigra pars reticulata | 1 |
Per-gene tissue summary (top 30)
| Symbol | Bgee breadth | FANTOM5 breadth | SCXA | Top tissues |
|---|
| CABLES1 | 218 | ubiquitous | marker | putamen, caudate nucleus, nucleus accumbens |
| ABCC4 | 230 | ubiquitous | marker | palpebral conjunctiva, secondary oocyte, buccal mucosa cell |
| NRXN3 | 231 | ubiquitous | marker | cerebellar vermis, substantia nigra pars compacta, substantia nigra pars reticulata |
Protein interactions among cohort
Intra-cohort edges: 0.
Hub genes (top 10 by interactor count)
| Symbol | Interactor count |
|---|
| ABCC4 | 2,497 |
| CABLES1 | 753 |
| NRXN3 | 165 |
Structural data
PDB: 1 · AlphaFold-only: 2 · No structure: 0
Cohort genes with PDB structures (top 30)
| Symbol | UniProt | PDB entries |
|---|
| ABCC4 | O15439 | 25 |
AlphaFold-only cohort genes (top 30 by pLDDT)
| Symbol | UniProt | pLDDT |
|---|
| NRXN3 | Q9HDB5 | 59.75 |
| CABLES1 | Q8TDN4 | 57.66 |
Function
Pathway analysis
Distinct Reactome pathways touched by cohort: 18. Enrichment computed across 3 evidence-associated genes (3 with Reactome annotation).
Pathways by enrichment
Over-representation of cohort genes vs the genome-wide background (hypergeometric test, Benjamini-Hochberg FDR; fold = observed/expected over 3 annotated cohort genes). Counts and members are kept as ground-truth; sorted by enrichment.
| Pathway | Cohort genes | Fold | FDR | Sample cohort genes |
|---|
| Azathioprine ADME | 1 | 165.5× | 0.030 | ABCC4 |
| Paracetamol ADME | 1 | 141.0× | 0.030 | ABCC4 |
| Cyclin E associated events during G1/S transition | 1 | 95.2× | 0.030 | CABLES1 |
| Cyclin A:Cdk2-associated events at S phase entry | 1 | 88.5× | 0.030 | CABLES1 |
| G1/S Transition | 1 | 77.7× | 0.030 | CABLES1 |
| Drug ADME | 1 | 76.1× | 0.030 | ABCC4 |
| Neurexins and neuroligins | 1 | 65.6× | 0.030 | NRXN3 |
| Mitotic G1 phase and G1/S transition | 1 | 61.4× | 0.030 | CABLES1 |
| S Phase | 1 | 60.4× | 0.030 | CABLES1 |
| Hemostasis | 2 | 24.0× | 0.030 | CABLES1, ABCC4 |
| Response to elevated platelet cytosolic Ca2+ | 1 | 54.4× | 0.030 | ABCC4 |
| ABC-family protein mediated transport | 1 | 40.5× | 0.037 | ABCC4 |
| Platelet activation, signaling and aggregation | 1 | 35.2× | 0.039 | ABCC4 |
| Platelet degranulation | 1 | 29.3× | 0.043 | ABCC4 |
| Factors involved in megakaryocyte development and platelet production | 1 | 22.1× | 0.053 | CABLES1 |
| Cell Cycle, Mitotic | 1 | 16.1× | 0.069 | CABLES1 |
| Cell Cycle | 1 | 12.0× | 0.086 | CABLES1 |
| Transport of small molecules | 1 | 8.4× | 0.115 | ABCC4 |
GO biological processes by enrichment
Over-representation of cohort genes vs the genome-wide background (hypergeometric test, Benjamini-Hochberg FDR; fold = observed/expected over 3 annotated cohort genes). Counts and members are kept as ground-truth; sorted by enrichment.
| GO term | Cohort genes | Fold | FDR | Sample cohort genes |
|---|
| kynurenic acid metabolic process | 1 | 5617.3× | 0.005 | ABCC4 |
| cAMP transport | 1 | 2808.7× | 0.005 | ABCC4 |
| obsolete L-tryptophan metabolic process | 1 | 1872.4× | 0.005 | ABCC4 |
| platelet degranulation | 1 | 1123.5× | 0.005 | ABCC4 |
| prostaglandin secretion | 1 | 1123.5× | 0.005 | ABCC4 |
| urate transport | 1 | 802.5× | 0.005 | ABCC4 |
| leukotriene transport | 1 | 802.5× | 0.005 | ABCC4 |
| prostaglandin transport | 1 | 624.1× | 0.005 | ABCC4 |
| export across plasma membrane | 1 | 561.7× | 0.005 | ABCC4 |
| neuron cell-cell adhesion | 1 | 330.4× | 0.007 | NRXN3 |
| xenobiotic transmembrane transport | 1 | 312.1× | 0.007 | ABCC4 |
| vocalization behavior | 1 | 295.6× | 0.007 | NRXN3 |
| bile acid and bile salt transport | 1 | 216.1× | 0.009 | ABCC4 |
| adult behavior | 1 | 156.0× | 0.012 | NRXN3 |
| learning | 1 | 93.6× | 0.018 | NRXN3 |
| social behavior | 1 | 90.6× | 0.018 | NRXN3 |
| transport across blood-brain barrier | 1 | 59.8× | 0.025 | ABCC4 |
| transmembrane transport | 1 | 56.2× | 0.026 | ABCC4 |
| xenobiotic metabolic process | 1 | 49.7× | 0.027 | ABCC4 |
| axon guidance | 1 | 30.2× | 0.043 | NRXN3 |
| regulation of cell cycle | 1 | 24.9× | 0.048 | CABLES1 |
| cilium assembly | 1 | 24.5× | 0.048 | ABCC4 |
| angiogenesis | 1 | 20.8× | 0.053 | NRXN3 |
| cell division | 1 | 15.4× | 0.066 | CABLES1 |
| nervous system development | 1 | 15.3× | 0.066 | CABLES1 |
| signal transduction | 1 | 5.3× | 0.176 | NRXN3 |
Therapeutics
Drug target analysis
Approved (phase 4): 1 · Phase ≥3: 1 · Phased (≥1): 1 · Undrugged: 2
Druggability breadth: 2 of 3 evidence-associated genes (67%) have a ChEMBL target (buckets above are over the deeply-mined display cohort).
Genes with an approved drug
The molecule shown is one approved compound that hits the gene — not necessarily a drug of choice or one indicated for this disease.
| Symbol | Example approved molecule |
|---|
| ABCC4 | CEFOTAXIME SODIUM |
Top cohort targets by molecule count
| Symbol | Molecules | Max phase |
|---|
| ABCC4 | 102 | 4 |
| CABLES1 | 0 | 0 |
| NRXN3 | 0 | 0 |
Drugs targeting cohort genes (top 30)
Bioactivity and enzyme data
Enzyme cohort genes (≥1 EC): 1.
Cohort genes with ChEMBL bioactivity (full, sorted by assay count)
| Symbol | Assays | Type breakdown |
|---|
| ABCC4 | 97 | Functional:71, ADMET:21, Binding:5 |
| CABLES1 | 1 | Binding:1 |
Cohort enzymes (BRENDA EC)
| Symbol | EC numbers | Names |
|---|
| ABCC4 | 7.6.2.2, 7.6.2.3 | ABC-type xenobiotic transporter, ABC-type glutathione-S-conjugate transporter |
Pharmacogenomics
Cohort genes with a PharmGKB record: 3; with CPIC/DPWG dosing guidelines: 0.
No cohort gene has a CPIC/DPWG genotype-guided dosing guideline (PharmGKB).
Chemical tractability of cohort targets
30 approved/phased compounds have measured bioactivity against a cohort gene (and aren’t yet in disease-level trials). This is a research / tractability signal, NOT a therapeutic recommendation — a bioactivity row often reflects off-target or screening binding (e.g. promiscuous kinase inhibitors against a cohort kinase), implying no disease mechanism.
| Compound | Max phase | Cohort target (bioactivity) |
|---|
| CEFOTAXIME SODIUM | 4 | ABCC4 |
| TELMISARTAN | 4 | ABCC4 |
| OXAPROZIN | 4 | ABCC4 |
| CEFUROXIME AXETIL | 4 | ABCC4 |
| AMLEXANOX | 4 | ABCC4 |
| VALRUBICIN | 4 | ABCC4 |
| RIMONABANT | 4 | ABCC4 |
| ACITRETIN | 4 | ABCC4 |
| TELITHROMYCIN | 4 | ABCC4 |
| SAQUINAVIR | 4 | ABCC4 |
| FEBUXOSTAT | 4 | ABCC4 |
| CEFAZOLIN SODIUM | 4 | ABCC4 |
| DOXAZOSIN MESYLATE | 4 | ABCC4 |
| GEMIFLOXACIN MESYLATE | 4 | ABCC4 |
| OLMESARTAN MEDOXOMIL | 4 | ABCC4 |
| TRAVOPROST | 4 | ABCC4 |
| DINOPROST TROMETHAMINE | 4 | ABCC4 |
| KETOROLAC TROMETHAMINE | 4 | ABCC4 |
| TEMSIROLIMUS | 4 | ABCC4 |
| ROSIGLITAZONE | 4 | ABCC4 |
| REPAGLINIDE | 4 | ABCC4 |
| CLOFAZIMINE | 4 | ABCC4 |
| QUINIDINE | 4 | ABCC4 |
| CARPROFEN | 4 | ABCC4 |
| TOLCAPONE | 4 | ABCC4 |
| BUDESONIDE | 4 | ABCC4 |
| MYCOPHENOLATE MOFETIL | 4 | ABCC4 |
| GLIMEPIRIDE | 4 | ABCC4 |
| NICARDIPINE | 4 | ABCC4 |
| DROSPIRENONE | 4 | ABCC4 |
Druggability pyramid
Cohort genes binned by druggability tier (high → low):
| Tier | Definition | Genes | Symbols |
|---|
| A | Approved (phase 4 drug) | 1 | ABCC4 |
| B | Phased (≥1) drug, not yet approved | 0 | |
| C | Druggable family + PDB, no drug | 0 | |
| D | Druggable family + AlphaFold only, no drug | 0 | |
| E | Difficult family or no structure, no drug | 2 | CABLES1, NRXN3 |
Undrugged target profiles
2 cohort genes are undrugged. Ranked by ‘starting-point quality’ (assay depth + drugged-partner adjacency).
| Symbol | ChEMBL assays | Drugged partners (top 3) |
|---|
| CABLES1 | 1 | — |
| NRXN3 | 0 | — |
Clinical trials & evidence
Clinical trials
Clinical trials: 96.
Phase distribution (across all retrieved trials)
| Phase | Trials |
|---|
| Not specified | 37 |
| PHASE2 | 35 |
| PHASE4 | 13 |
| PHASE3 | 6 |
| PHASE1 | 4 |
| PHASE1/PHASE2 | 1 |
Top trials by phase / activity
| NCT | Phase | Status | Title |
|---|
| NCT00407511 | PHASE4 | COMPLETED | Pregabalin Treatment Of Peripheral Neuropathic Pain Associated With Diabetic Peripheral NeP (DPN), Postherpetic Neuralgia (PHN), HIV-related NeP (HIV), and Chemotherapy Induced NeP |
| NCT00527202 | PHASE4 | COMPLETED | Efficacy Study of Botox to Treat Neuropathic Pain |
| NCT00885586 | PHASE4 | COMPLETED | Acupuncture in Herpes Zoster Neuralgia (ACUZoster) |
| NCT00904020 | PHASE4 | COMPLETED | A Study of the Effectiveness And Safety Of Lidoderm® As Add-On Treatment in Patients With Postherpetic Neuralgia, Diabetic Neuropathy, or Low Back Pain |
| NCT00904202 | PHASE4 | COMPLETED | A Study Of Lidocaine Patch 5% Alone, Gabapentin Alone, And Lidocaine Patch 5% And Gabapentin In Combination For The Relief Of Pain In Patients With Diverse Peripheral Neuropathic Pain Conditions |
| NCT01116531 | PHASE4 | WITHDRAWN | Efficacy, Safety, Tolerability and Pharmacokinetics of Concomitant Administration of Tramadol With Duloxetine or Pregabalin |
| NCT01251211 | PHASE4 | COMPLETED | Botulinum Toxin in Peripheral Neuropathic Pain |
| NCT01264237 | PHASE4 | UNKNOWN | Evaluation of the Efficacy, Tolerability and Safety of Etoricoxib (Arcoxia) in Patients With Neuropathic Pain |
| NCT01302275 | PHASE4 | COMPLETED | Oxcarbazepine for the Treatment of Chronic Peripheral Neuropathic Pain |
| NCT01455428 | PHASE4 | COMPLETED | Pregabalin for Treatment of Patients With Postherpetic Neuralgia (PHN) |
| NCT01603394 | PHASE4 | TERMINATED | Pilot Study Of Pregabalin And Prediction Of Treatment Response In Patients With Postherpetic Neuralgia |
| NCT01713426 | PHASE4 | COMPLETED | A Study to Compare QUTENZA With Pregabalin for the Treatment of Peripheral Neuropathic Pain (PNP) After 8 Weeks of Treatment |
| NCT04664530 | PHASE4 | UNKNOWN | The Study on the Esketamine in the Treatment of Postherpetic Neuralgia |
| NCT00007501 | PHASE3 | COMPLETED | Shingles Prevention Study |
| NCT01008553 | PHASE3 | COMPLETED | A Confirmatory Study of Fentanyl in Participants With Post-herpetic Neuralgia, Complex Regional Pain Syndrome or Postoperative Pain Syndrome |
| NCT02412917 | PHASE3 | TERMINATED | A Comparative Study of FV-100 vs. Valacyclovir for the Prevention of Post-Herpetic Neuralgia |
| NCT02868801 | PHASE3 | UNKNOWN | Efficacy and Safety of Pregabalin Sustained Release Tablet for Postherpetic Neuralgia |
| NCT05140863 | PHASE3 | COMPLETED | To Evaluate the Efficacy and Safety of HSK16149 Capsule in Chinese Patients With Postherpetic Neuralgia |
| NCT07349680 | PHASE3 | COMPLETED | Ultrasound-Guided Thoracic Paravertebral Block With Steroid and Local Anesthetic for Acute Herpes Zoster: Effects on Pain Control and Prevention of Postherpetic Neuralgia |
| NCT06708416 | PHASE2 | ACTIVE_NOT_RECRUITING | A Study of ONO-1110 in Patients With Postherpetic Neuralgia |
| NCT07275762 | PHASE2 | RECRUITING | Y-4 to Treat the Postherpetic Neuralgia |
| NCT00168441 | PHASE2 | COMPLETED | A Study Evaluating Botulinum Toxin Type A in Subjects With Postherpetic Neuralgia |
| NCT00238511 | PHASE2 | COMPLETED | An Open-Label Follow-on Trial to Assess the Long-Term Safety and Efficacy of Oral SPM 927 in Subjects With Postherpetic Neuralgia (PHN) |
| NCT00352651 | PHASE2 | TERMINATED | Study to Find Out if Therapy With the Drug Pregabalin Relieves Pain During Shingles Compared With Placebo |
| NCT00478179 | PHASE2 | COMPLETED | Study of a Bupivacaine Patch (Eladur™) to Treat Post- Herpetic Neuralgia |
| NCT00492323 | PHASE2 | COMPLETED | An Effectiveness and Safety Study With RWJ-333369 (Carisbamate) for the Study of Postherpetic Neuralgia (PHN). |
| NCT00506610 | PHASE2 | WITHDRAWN | A Study to Determine if an Investigational Pain Medicine Provides Relief of Chronic Pain After a Shingles Outbreak |
| NCT00576108 | PHASE2 | COMPLETED | A 2 Week Study of Topical KD7040 in the Treatment of Postherpetic Neuralgia (PHN) |
| NCT00599638 | PHASE2 | COMPLETED | A Study To Compare Pregabalin/PF-00489791 Combination Versus Pregabalin Alone In Post-Herpetic Neuralgia |
| NCT00609323 | PHASE2 | COMPLETED | Lidocaine and Tetracaine Cream to Treat Postherpetic Neuralgia (PHN) |
| NCT00612105 | PHASE2 | COMPLETED | Safety/Efficacy Study of Retigabine vs. Placebo in Post-Herpetic Neuralgia (PHN) |
| NCT00652184 | PHASE2 | UNKNOWN | Study to Compare Efficacy of Topical ARYS-01 (Sorivudine) Cream 3%, Oral Valaciclovir and Combination ARYS-01 Cream 3%/Oral Valaciclovir for Treatment of Herpes Zoster (Shingles) |
| NCT00809679 | PHASE2 | TERMINATED | Analgesic Efficacy and Safety Study of T-62 in Subjects With Postherpetic Neuralgia |
| NCT00813826 | PHASE2 | UNKNOWN | Efficacy and Safety Study of SLC022 in Treating Pain Associated With Post Herpetic Neuralgia |
| NCT00845923 | PHASE2 | COMPLETED | Evaluation of Civamide Patch in Treatment of Postherpetic Neuralgia and Post-Incisional Neuralgia |
| NCT00861068 | PHASE2 | COMPLETED | A Multi-Centre, Randomized, Double-Blind, Placebo Controlled Pilot Trial to Assess the Efficacy, Safety, and Tolerability of SPM 927 in Subjects With Postherpetic Neuralgia (PHN). |
| NCT00916942 | PHASE2 | COMPLETED | Study of NGX-4010 With the Use of Open Label Lidocaine (2.5%)/Prilocaine (2.5%) Cream for the Treatment of Postherpetic Neuralgia (PHN) |
| NCT00981227 | PHASE2 | COMPLETED | Efficacy and Safety of Eslicarbazepine Acetate as Therapy for Patients With Post-Herpetic Neuralgia |
| NCT01058642 | PHASE2 | TERMINATED | Study to Assess the Efficacy, Safety, and Tolerability of ADL5747 in Participants With Postherpetic Neuralgia |
| NCT01088256 | PHASE2 | TERMINATED | Efficacy of Etoricoxib on Peripheral Hyperalgesia |
Drugs tested across these trials (top 30)
- Cohort genes: CABLES1, ABCC4, NRXN3
- Drugs: Pregabalin, Capsaicin, Lidocaine, Valacyclovir, Etoricoxib, Gabapentin, Lacosamide, Botulinum Toxin Type A, Diclofenac, Duloxetine, Esketamine, Eslicarbazepine Acetate, Ezogabine, Flupirtine, Oxcarbazepine, Tapentadol, Tramadol, Zucapsaicin, Carisbamate, Valnivudine