Human menopausal gonadotropin is a biological mixture standardized by FSH and LH activity, not a single compound with one molecular formula.
Evidence at a glance
- DailyMed describes Menopur as extracted from postmenopausal urine and further purified.
- Each regulated vial contains 75 IU FSH activity and 75 IU LH activity; hCG is detectable.
- The label states that FSH and LH activities are measured by separate biological assays standardized to WHO references.
Identity record
An international unit is defined through biological activity and reference standardization. It is not a direct molecular-weight unit and cannot be reconstructed from total protein mass alone.
Analytical and evidence boundary
Because hMG is a mixture, batch characterization should address component activity and relevant impurities rather than inventing a single sequence or formula. Product-specific purification and excipients also matter.
Regulated product labeling may be cited to explain what a well-defined preparation contains. It must not be presented as the specification for a catalog material unless the actual lot documentation supports equivalence.
Editorial rule
State the exact material, form, model or population and endpoint supported by the cited record. Do not convert mechanistic plausibility, an animal result, an official finished-drug label or an analytical test into a claim about an unrelated catalog lot.
Sources & editorial method
This article discusses the source records listed below, with the study models and limitations stated alongside the findings. AI-assisted drafting and image generation were used. The reference list identifies the records behind this article; it is not an independent peer review or verification of a supplied catalog lot.
3 linked records are listed in the references below. Read the editorial and AI-assistance policy.
How to interpret this article
Source-checked on 2026-09-02. Null results, sample size, model/population limits, finished-drug scope, regulatory status and product-evidence boundaries are retained. This is not medical advice, a customer case or validation of a catalog lot.
Research-use boundary: Catalog materials discussed on this website are for laboratory research, development and manufacturing use only, not for human or veterinary use. This content is not medical advice and does not provide administration instructions.
Primary records and authoritative sources
- DailyMed Menopur labelOfficial product description, potency, source and safety context.
- Highly purified hMG versus recombinant FSH in high responders620-participant randomized noninferiority trial; PMID 32416978.
- HP-hMG versus recombinant FSH in WHO group II infertility184-participant randomized trial; PMID 16571641.
Continue with structured records
Move from this editorial analysis to the product identity, filtered evidence and controlled terminology behind it.
