Compounding & IV Preparation Resource Center
Pharmacy compounding calculators, alligation tools, osmolarity assessment, IV preparation and dilution references, epidural calculations, parenteral nutrition resources, fortified ophthalmic preparations, and selected extemporaneous formulations from across GlobalRPh.
Clinical background
Compounding connects calculations with preparation, compatibility and quality control
Pharmaceutical compounding is used when an appropriate commercially manufactured dosage form does not meet a patient-specific clinical need. In practice, the calculation is only one part of the process. Concentration, ingredient selection, diluent or vehicle, final volume, route, sterility requirements, compatibility, stability, storage, labeling, and administration all need to be considered.
GlobalRPh has accumulated compounding-related material in several different parts of the site over many years. This redesigned portal brings those resources together so that alligation calculators, IV dilution monographs, osmolarity tools, epidural preparation, TPN, fortified ophthalmics, and selected extemporaneous oral formulations can be found from one page.
- Sterile IV preparation
- Nonsterile compounding
- Alligation & concentration adjustment
- Osmolarity & peripheral IV assessment
- Epidural preparations
- Parenteral nutrition
- Fortified ophthalmic preparations
- Extemporaneous oral liquids
IV Dilution & Infusion Guidelines
The GlobalRPh IV dilution library is one of the most important compounding-related resources on the site. Individual monographs may include standard admixture concentrations, infusion volumes, preparation instructions, administration rates, stability information, compatible diluents, storage, and product-specific handling considerations.
IV Dilution Quick Search
Use the dedicated quick-search interface when you already know the medication and want to move directly to the corresponding GlobalRPh IV preparation or dilution monograph.
Core calculation tools
Compounding calculators
The original portal’s calculator collection is retained and expanded with additional GlobalRPh tools that are directly relevant to concentration, admixture preparation and infusion design.
Alligation & concentration adjustment
Osmolarity & IV admixtures
Infusion-rate table creation
Epidural preparation
Specialty preparation resources
Extemporaneous, ophthalmic, epidural and nutrition compounding
Extemporaneous compounding overview
- Extemporaneous Compounding – GlobalRPh Reference
- Hospital Protocols Submitted – Includes Compounding / Preparation Material
The GlobalRPh extemporaneous-compounding reference emphasizes preparation planning, aseptic technique when sterility is required, pH, stability, storage, vehicle selection and written procedures.
Fortified ophthalmic preparations
Parenteral nutrition
- Total Parenteral Nutrition Calculator
- Osmolarity Calculator – TPN Capabilities
- Nutrition / Diet Clinical Portal
Extemporaneous oral formulations
Selected formulation instructions already present within GlobalRPh
Compounding instructions are also embedded inside several GlobalRPh medication monographs. The examples below are useful starting points for locating those otherwise difficult-to-find internal resources.
IV electrolytes, high-osmolarity solutions & stability
High-value GlobalRPh dilution references
The original portal specifically raised the question of adding magnesium sulfate to a small-volume D5W bag. The updated portal links directly to the osmolarity tools and relevant IV monographs rather than leaving that question as isolated text.
Electrolytes
Selected preparation / stability monographs
Current practice context
Compounding standards, quality and regulatory verification
GlobalRPh calculators and historical formulation references should be used as clinical support, not as a substitute for current compounding requirements or local policy.
What should always be verified before preparation?
- Whether a compounded preparation is clinically necessary for the specific patient or setting.
- The exact formulation, ingredients, source concentrations, route and final concentration.
- Sterility requirements, environmental controls and personnel competency when sterile preparation is involved.
- Compatibility, stability, container or device requirements, storage conditions and beyond-use dating.
- Hazardous-drug handling requirements when applicable.
- Current FDA requirements, USP standards, state requirements and institutional policies.
GlobalRPh related reading
Compounded products, medication quality and individualized formulations
The old portal’s “Drug Tables and Latest Articles” section was empty. These GlobalRPh articles contain substantive discussion of compounded preparations, product quality, or situations in which individualized formulations may arise.
Supporting GlobalRPh resources
Laboratory monitoring, drug levels and adjacent clinical sections
Laboratory & therapeutic monitoring
Related specialty portals
Statistics retained from the original portal
Why the financial “Compounding Yield Calculator” is not listed here
The comprehensive GlobalRPh site index contains a page titled “Compounding Yield Calculator.” Despite the name, that page calculates compound investment yield and is part of the financial calculator collection. It is intentionally excluded from this pharmacy-compounding portal.
