A full custom formulary evaluates clinical evidence, pricing behavior, and utilization patterns to determine which drugs support the goals of the plan. This structure gives organizations more control than standard PBM options.
A full custom formulary provides organizations with a clear structure for selecting drugs that align with their clinical goals and financial needs. With our solutions, experts review therapeutic classes, evaluate pricing behavior, and apply defined criteria that guide precise coverage decisions.
The Innovative Rx team builds each formulary through targeted clinical analysis and a detailed review of value across brand, generic, and specialty drugs. Employers and health plans rely on this approach to control spending, reduce low-value coverage, and create a pharmacy benefit that reflects their priorities.
How a Full Custom Formulary Supports Clearer Control of Coverage & Cost
A full custom formulary provides more precise control by enabling organizations to choose which drugs receive placement based on value, rather than relying on broad PBM templates.
This structure distinguishes high-impact therapies from products that increase spending without providing meaningful clinical benefits.
With this, employers and health plans gain stronger visibility into pricing patterns, which enables them to develop a coverage strategy that aligns with their financial objectives.
All in all, this curates a foundation that supports consistent decisions and reduces unnecessary exposure as new drugs enter the market.
Key Steps to Build a Full Custom Formulary
Building a full custom formulary requires a structured process that evaluates clinical value, pricing behavior, and plan goals.
Here are the steps that Innovative Rx Strategies suggests for building a plan that aligns with clinical value, pricing insights, and plan goals:
- Review therapeutic classes to identify core treatments, emerging options, and areas with high utilization
- Evaluate clinical evidence to confirm effectiveness, treatment placement, and safety across drug categories
- Analyze pricing structures to understand brand, generic, and specialty cost behavior and compare alternatives
- Assess biosimilar and generic opportunities that support lower-cost options without reducing treatment quality
- Set tier placement and coverage rules using criteria that match employer priorities and member needs
- Determine exclusions for low-value drugs, duplicative therapies, and products that increase spend without added benefit
- Apply utilization management standards that support appropriate use and guide members toward preferred options
- Review plan goals with stakeholders to confirm that each coverage choice aligns with broader PBM management strategies
- Implement ongoing monitoring to update the formulary as new drugs launch, pricing shifts, or clinical guidelines evolve
Why Organizations Choose Full Custom Formulary Development Over Standard PBM Formularies
Organizations we serve choose full custom formulary development with Innovative Rx Strategies because our pharmacists and clinical experts conduct independent analysis of every drug category, which removes misaligned incentives embedded in standard PBM formularies..
Our team brings experience across numerous clinical operations, supporting precise decisions that reflect real value.
We operate independently of PBMs, manufacturers, and pharmacies, allowing every coverage recommendation to center on the goals of the employer or health plan. This level of independence and expertise enables organizations to build a structure that protects financial performance and enhances member access.
Benefits That Improve Clinical Alignment and Financial Performance
A full custom formulary creates advantages that help organizations strengthen both clinical strategy and financial performance.
These benefits support clearer decisions across complex drug categories and give plan sponsors a structure that adapts to evolving market conditions:
- More accurate alignment between coverage rules and condition-specific treatment pathways
- Stronger control of drug mix within therapeutic classes that commonly drive trends
- Improved ability to introduce value-based coverage strategies for emerging therapies
- Clearer forecasting that supports financial planning and long-term budget management
- Greater flexibility to adjust coverage as clinical guidelines and pricing patterns shift
Connect With Our Team to Build Your Full Custom Formulary
Reach out to our pharmacy benefits consulting team to explore how a full custom formulary can reflect your clinical goals and financial priorities. Our experts review therapeutic classes, evaluate value across drug categories, and guide you through each decision that shapes your coverage structure.
Contact us to begin a focused process that strengthens your approach to PBM management.
Full Custom Formulary FAQs
How often should a formulary be updated?
Many groups update a full custom formulary at least quarterly throughout the year to reflect new drug launches, pricing changes, and shifts in clinical guidelines that influence PBM management decisions.
How do custom formularies support specialty drug planning?
A full custom formulary reviews specialty therapies with detailed clinical and financial analysis so employers can understand true value and maintain stronger control of trends.
What role do consultants play in building a formulary?
Pharmacy benefits consulting provides an independent review of therapeutic classes, pricing structures, and coverage standards to confirm that each step in building a full custom formulary aligns with organizational priorities.