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Last Updated: December 16, 2025

Bulk Pharmaceutical API Sources for EQUANIL


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Bulk Pharmaceutical API Sources for EQUANIL

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Bulk Active Pharmaceutical Ingredient (API) Sources for EQUANIL

Last updated: August 1, 2025


Introduction

Equanil, known generically as chlorpromazine, is a first-generation antipsychotic drug primarily used to manage schizophrenia, psychotic disorders, and nausea. As a critical therapeutic agent, the sourcing of high-quality Active Pharmaceutical Ingredient (API) is vital to ensure drug efficacy, safety, and compliance with regulatory standards. This article provides a comprehensive overview of bulk chlorpromazine API sources, discussing manufacturing markets, key suppliers, quality considerations, and strategic procurement insights for pharmaceutical stakeholders.


Understanding Equanil (Chlorpromazine): Market & Significance

Chlorpromazine, marketed under the brand name Equanil, was among the first antipsychotics introduced in the 1950s. Despite newer agents entering the market, chlorpromazine remains relevant for specific indications, like in some developing markets and for certain off-label uses. The global API market for chlorpromazine adheres to stringent quality standards, often requiring sourcing from reputable manufacturers with robust quality control systems.


Global API Manufacturing Regions for Chlorpromazine

1. China

China remains a dominant force in the pharmaceutical raw materials sector, including APIs like chlorpromazine. The country's large-scale manufacturing infrastructure, cost advantages, and extensive supply chain make Chinese suppliers a primary source for bulk API procurement. Reputable Chinese API manufacturers often have Good Manufacturing Practice (GMP) certification, complying with international standards such as PIC/S and WHO.

2. India

India’s pharmaceutical industry, recognized as the “pharmacy of the world,” produces a significant share of APIs, including chlorpromazine. Indian manufacturers benefit from advanced R&D, quality-centric manufacturing practices, and cost competitiveness. Regulatory agencies like the Central Drugs Standard Control Organization (CDSCO) ensure compliance, and many Indian API producers hold certifications from USFDA, EMA, and other international bodies.

3. European Union

While European manufacturers mainly focus on finished dosage forms, a handful of high-quality API producers in the EU supply chlorpromazine. These suppliers prioritize stringent quality standards and regulatory adherence, suitable for markets with high compliance requirements. The EU market tends to favor APIs that meet European Pharmacopoeia standards.

4. United States

USA-based API manufacturers are comparatively limited for chlorpromazine but offer high assurance of quality, consistency, and regulatory compliance. U.S. suppliers often serve niche markets or supply for imported formulations requiring U.S. Drug Master Files (DMFs).


Major Suppliers and Manufacturers of Chlorpromazine API

1. Zhejiang Hisun Pharmaceuticals Co., Ltd. (China)

  • One of China’s leading API manufacturers with global export reach.
  • GMP-certified with a diverse product portfolio.
  • Focuses on producing high-purity chlorpromazine suitable for bulk and formulation use.

2. Aurobindo Pharma Limited (India)

  • Recognized worldwide for reliable bulk APIs.
  • Holds multiple international certifications, including USFDA and EMA approvals.
  • Provides chlorpromazine API with consistent quality and competitive pricing.

3. Suzhou Tianma Pharmaceutical Co., Ltd. (China)

  • Specializes in antipsychotic APIs, including chlorpromazine.
  • Emphasizes stringent quality control aligned with international standards.
  • Engages in contract manufacturing for global pharmaceutical firms.

4. Micro Labs Limited (India)

  • Offers a broad range of APIs, including chlorpromazine.
  • Committed to quality compliance with GMP standards.
  • Supplies both domestic and international markets.

5. European API Suppliers

  • Certain European specialty manufacturers, such as Rottapharm and Boehringer Ingelheim, produce chlorpromazine API with an emphasis on premium quality, often for niche markets.

Quality Considerations for API Sourcing

Selecting a reliable API supplier involves evaluating several critical factors:

  • Regulatory Compliance: Vendors must adhere to GMP, ISO certifications, and if applicable, U.S. FDA, EMA, or WHO prequalification standards.
  • Purity & Specifications: API must conform to pharmacopeial standards (e.g., USP, EP) with specified purity levels and impurity profiles.
  • Documentation & Traceability: Complete batch records, Certificates of Analysis (COA), and comprehensive documentation are essential for regulatory submissions.
  • Supply Stability: Consistent production capacity and on-time delivery mitigate supply chain disruptions.
  • Price & Lead-Time: Competitive pricing must be balanced with quality and service reliability.

Regulatory and Procurement Strategies

Pharmaceutical companies sourcing chlorpromazine API should develop robust procurement strategies:

  • Engage Multiple Suppliers: Diversify suppliers across regions to minimize risks related to geopolitical issues, quality lapses, or supply chain disruptions.
  • Perform Supplier Audits: Regular assessments ensure ongoing compliance with quality standards.
  • Review Certification Documents: Verify GMP, ISO, and other relevant certifications before onboarding.
  • Leverage Strategic Partnerships: Establish long-term relationships with trusted manufacturers to secure preferential terms, technical support, and supply certainty.
  • Monitor Regulatory Updates: Remain aligned with evolving standards like ICH guidelines and regional regulations to maintain compliance.

Emerging Trends and Considerations

  • API Supply Chain Resilience: Post-pandemic, there is increased emphasis on building more resilient and transparent supply chains for critical APIs like chlorpromazine.
  • Quality Innovation: Suppliers investing in innovative manufacturing processes can provide APIs with higher purity, reduced impurities, and tailored formulations.
  • Sustainability & Ethical Sourcing: Growing demand for sustainable sourcing practices urges manufacturers to adopt environmentally friendly production methods and transparent supply chains.

Key Takeaways

  • The primary sources of bulk chlorpromazine API are China and India, offering cost-effective, high-quality manufacturing capabilities.
  • European and U.S. suppliers provide premium APIs that meet stringent regulatory and quality standards, suitable for highly regulated markets.
  • Critical supplier evaluation should incorporate compliance credentials, quality assurance measures, supply stability, and competitive pricing.
  • Developing a diversified supplier base and maintaining supplier audits minimize risks associated with supply chain disruptions.
  • Staying abreast of regulatory changes and investing in quality partnerships are essential for ensuring a reliable API supply for Equanil formulations.

Frequently Asked Questions (FAQs)

1. What are the main regions supplying chlorpromazine API globally?
China and India dominate as primary manufacturing hubs due to their extensive infrastructure and cost advantages. The EU and U.S. offer high-quality APIs for regulated markets.

2. How can buyers ensure the quality of chlorpromazine API from overseas suppliers?
By verifying certifications such as GMP, USFDA, or EMA approval, reviewing Certificates of Analysis, conducting supplier audits, and ensuring compliance with pharmacopeial standards.

3. Are there alternative sources for chlorpromazine API?
Yes; while Chinese and Indian manufacturers are predominant, select European and North American suppliers may provide APIs with higher regulatory assurance but at increased costs.

4. What factors influence the pricing of chlorpromazine API?
Production scale, purity grade, certification compliance, supply stability, and geopolitical factors significantly influence pricing.

5. What are the risks associated with sourcing chlorpromazine API from emerging markets?
Risks include quality variability, regulatory non-compliance, supply disruptions, and intellectual property concerns, mitigated through rigorous supplier qualification processes.


References

[1] WHO: Good Manufacturing Practices (GMP) Guidelines for Active Pharmaceutical Ingredients.
[2] U.S. FDA: API Quality Standards and Guidance Documents.
[3] Pharmacopeial Standards (USP, EP): Specifications for Chlorpromazine.
[4] Pharmaceutical Business Reports: Global API Market Analysis.
[5] Industry Publications: Trends in API Manufacturing and Supply Chain Management.

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