Shyndec Pharmaceutical Licenses Eisai Myonal Generic from ScienPharm – RMB 10.5 Million Deal Targets Muscle Relaxant Market

Shanghai Shyndec Pharmaceutical Co., Ltd. (SHA: 600420) announced a licensing agreement with Shanghai ScienPharm, obtaining rights to the latter’s generic version of Eisai’s Myonal (eperisone) for RMB 10.5 million (USD 1.5 million). The centrally acting muscle relaxant, used for cervicobrachial syndrome, periarthritis of the shoulder, low back pain, and spastic paralysis, is currently under marketing review in China, positioning Shyndec to capture share in the RMB 2+ billion muscle relaxant market upon approval.

Transaction Overview

ElementDetail
LicenseeShanghai Shyndec Pharmaceutical Co., Ltd. (SHA: 600420)
LicensorShanghai ScienPharm
AssetGeneric eperisone (Myonal copycat)
OriginatorEisai (Japan) – Myonal brand
Deal ValueRMB 10.5 million (USD 1.5 million)
Product StatusUnder marketing review in China (NMPA approval pending)
Therapeutic ClassCentrally acting muscle relaxant

Product Profile & Indications

AttributeEperisone Specification
MechanismCentrally acting muscle relaxant – inhibits gamma motor neurons, reduces muscle spindle sensitivity
Primary IndicationsCervicobrachial syndrome (neck-shoulder-arm pain); periarthritis of shoulder; low back pain
Secondary IndicationSpastic paralysis from underlying neurological diseases
Market PositionEstablished brand (Eisai Myonal) with decades of clinical use in Japan and Asia; no generic competition in China currently
RouteOral (convenient outpatient therapy)

Strategic Rationale & Market Context

FactorImplication
China Muscle Relaxant MarketRMB 2–3 billion annually; aging population and sedentary lifestyle drive chronic musculoskeletal pain prevalence
Eperisone DifferentiationDual action – muscle relaxation + mild analgesic effect; less sedation vs. traditional benzodiazepine muscle relaxants (e.g., diazepam)
Generic OpportunityEisai Myonal imported/premium priced; domestic generic offers 30–50% cost reduction and NRDL listing potential
Shyndec StrategyPain management portfolio expansion – complements existing NSAIDs and neuropathic pain assets; leverages hospital rehabilitation medicine relationships
ScienPharm PositionDevelopment-to-licensing model – monetizes ANDA filing without building commercial infrastructure
  • Commercial Timeline: NMPA approval expected H2 2026; Shyndec sales force deployment to orthopedics, rehabilitation, and pain management departments
  • Revenue Potential: Peak sales RMB 80–120 million annually assuming 10–15% market share in eperisone segment; NRDL inclusion 2027 critical for volume expansion

Forward‑Looking Statements
This brief contains forward‑looking statements regarding NMPA approval timelines, generic pricing dynamics, and market penetration for eperisone in China. Actual results may differ due to regulatory review delays, competitive entry from other eperisone generics, and reimbursement negotiations.-Fineline Info & Tech