Darshan Singh

Darshan Singh

Author is a pharmaceutical professional who is Master in Science (Organic Chemistry) and Diploma in Pharmacy. He has rich experience in pharma manufacturing sector, He Served in many companies as Quality Control Head, and Quality Assurance Head, along with Plant Head supervised all manufacturing processes. He is keen to research of pharma product manufacturing and drugs pharmacology. He is writing on several topics about pharmaceutical products, processes, and SOPs.

USFDA Approval Roadmap for Indian Formulation Plants

USFDA Approval Roadmap for Indian Formulation Plants

For an Indian formulation plant, “USFDA approval roadmap” essentially means that both your facility and your products meet United States Food and Drug Administration requirements for quality, safety, and compliance with current Good Manufacturing Practice (cGMP) under 21 CFR Parts…

SOP for Dry Powder Filling Operation (Injectable Vials)

SOP for Dry Powder Filling Operation

The SOP for dry powder filling operation defines step‑by‑step controls for aseptic vial filling of sterile powders, including environmental conditions, machine setup, component transfer, in‑process weight and quality checks, and documentation. It ensures each vial receives the correct dose under…

SOP for fumigation of Microbiology Lab

SOP for fumigation of Microbiology Lab

Fumigation of a microbiology lab is a validated decontamination process that uses a gaseous disinfectant (commonly formaldehyde or hydrogen peroxide) to reduce microbial contamination on room surfaces and equipment. The SOP defines responsibilities, safety precautions, quantities, exposure time, aeration, and…