How to Source Promethazine Hydrochloride Injection for Pharmaceutical Formulation
Promethazine Hydrochloride Injection (Injection, 25mg/ml) is classified under Allergy Medication. It is therapeutically aligned with reference brands such as Phenergan Injection (USA). This guide highlights key sourcing factors buyers should consider when procuring high-quality Promethazine Hydrochloride Injection for formulation, R&D, or bulk manufacturing.
1. Regulatory Compliance & Documentation
Ensure suppliers provide:
- ✔ Valid DMF (Drug Master File)
- ✔ COA (Certificate of Analysis) for each batch
- ✔ GMP, ISO, or ICH Q7 compliance certificates
2. Purity, Grade & Specification Matching
Promethazine Hydrochloride Injection must meet exact grade and purity for your dosage form:
- ✔ USP / EP / JP grade verification
- ✔ Particle size distribution check
- ✔ Residual solvent and heavy metal limits
3. Supplier Reliability & Audit History
- ✔ Positive past audit reports
- ✔ Pharma client references
- ✔ Years of proven API manufacturing experience
4. Commercial Terms: Pricing, MOQ & Flexibility
- ✔ Transparent pricing
- ✔ Pilot batch MOQ flexibility
- ✔ Volume-based discounts
5. Lead Time, Inventory & Logistics
Typical lead time for Promethazine Hydrochloride Injection is 4–6 weeks.
- ✔ Emergency dispatch options
- ✔ Regional warehousing
- ✔ Special storage if needed
6. Formulation Support
- ✔ Technical datasheets
- ✔ Sample availability
- ✔ Stability study support
Conclusion
Sourcing Promethazine Hydrochloride Injection is more than procurement—it’s a strategic partnership. With its injection form and 25mg/ml specification, choosing a compliant supplier ensures consistent quality and regulatory approval. Prioritize documentation, verify compatibility, and build relationships with transparent, reliable suppliers to secure long-term success.
Frequently Asked Questions For Sourcing of Promethazine Hydrochloride Injection
What is the typical lead time for Promethazine Hydrochloride Injection?
Lead times range from 4–6 weeks depending on supplier and region.
Is Promethazine Hydrochloride Injection available in multiple grades?
Yes — common grades include USP, EP, and JP. Verify grade suitability for your dosage form before purchase.
Does Promethazine Hydrochloride Injection require special storage?
It should be stored in a cool, dry place away from direct sunlight.
Is a Drug Master File (DMF) available for Promethazine Hydrochloride Injection?
Yes, a DMF is available for regulated markets upon request. It includes detailed quality, manufacturing, and stability data.
Can I request samples or a pilot batch of Promethazine Hydrochloride Injection?
Yes — pilot batches or samples can be arranged for R&D, stability studies, or formulation trials. MOQ may vary based on region and regulatory scope.
What compliance certificates are available for Promethazine Hydrochloride Injection?
Available documentation may include GMP, ISO 9001, ISO 14001, and ICH Q7 certificates, along with CoA, TDS, and stability data.
Is Promethazine Hydrochloride Injection suitable for regulated markets like US/EU?
Yes — compliant with EU/US/WHO GMP standards and available with regulatory support documentation for filings.
Can Promethazine Hydrochloride Injection be used in fixed-dose combinations?
Yes — many formulations support inclusion in FDCs. Compatibility studies and formulation consultation are available on request.