A Broker's Guide to Pharmacy Cost Control Strategies for Employers

Introduction

Pharmacy costs represent one of the fastest-growing expense categories in employer health plans. For many small to mid-sized businesses, prescription drug spending increases 8-12% annually—nearly double the rate of medical cost inflation. The good news? You have more control over these costs than you might think.

As a benefits advisor working with Michigan employers, I’ve seen firsthand how strategic pharmacy management can reduce plan costs by 5-15% without compromising employee access to necessary medications. The key is understanding which levers to pull during renewal negotiations with your broker and pharmacy benefit manager (PBM).

This guide walks you through the pharmacy cost control strategies that actually work—and which questions to ask your advisor during your next renewal conversation.

Understanding Your Pharmacy Benefit Manager Relationship

What Your PBM Actually Does

Your pharmacy benefit manager sits between your health plan, employees, and pharmacies. They negotiate drug prices, maintain formularies (approved drug lists), process claims, and manage mail-order services. They’re also typically compensated through a combination of rebates, dispensing fees, and administrative charges.

This creates an important transparency issue: understanding how your PBM makes money helps you identify potential conflicts of interest during negotiations.

Key questions to ask your broker: - What is our PBM’s total compensation model? - Are we receiving all rebates generated from our plan? - What’s our current spread pricing (the difference between what we pay and what pharmacies are reimbursed)?

Evaluating PBM Performance

Don’t assume your current PBM is optimizing your plan. Request an annual performance audit that includes:

• Rebate capture rates compared to industry benchmarks
• Generic utilization percentages
• Mail-order penetration rates
• Specialty drug spending trends
• Pricing comparisons against regional and national averages

A quality broker will facilitate this analysis and use it as leverage during renewal negotiations.

Strategic Formulary Management

What a Formulary Does

A formulary is your plan’s approved drug list. It’s organized into tiers (typically 3-5 levels) that determine employee cost-sharing. Smart formulary design encourages use of preferred, cost-effective medications while maintaining clinical quality.

Three Formulary Strategies to Discuss

1. Preferred Generic Formularies

This is the most impactful lever most employers overlook. Rather than passively accepting the PBM’s standard formulary, work with your broker to create a preferred generic list that:

• Emphasizes generic alternatives over brand-name drugs
• Increases employee cost-sharing for non-preferred brand drugs
• Maintains clinically appropriate options within each therapeutic category

The result? Employers typically see 15-20% reductions in pharmacy costs when shifting from an open formulary to a preferred generic approach.

2. Specialty Drug Management

Specialty medications (biologics, injectable drugs, cancer treatments) can cost $1,000-$20,000+ monthly per employee. Without management, one or two specialty cases can dramatically impact your renewal rate.

Effective specialty drug management includes:

• Prior authorization requirements for high-cost medications
• Step therapy protocols (requiring employees to try lower-cost alternatives first)
• Mandatory mail-order or specialty pharmacy networks
• Patient assistance program identification

3. Tiered Copay Structures

Most plans use four-tier structures: generics ($10-15), preferred brands ($30-50), non-preferred brands ($50-100), and specialty drugs (20-30% coinsurance). Consider asking your broker about a more aggressive tiered approach that increases cost-sharing for non-preferred medications.

Important caveat: More aggressive copays can increase employee out-of-pocket costs. Balance cost control with employee satisfaction and medication adherence.

Optimizing Generic Utilization

Why Generics Matter

Generic drugs cost 80-85% less than brand-name equivalents on average. Increasing your generic utilization rate from 75% to 85% can reduce pharmacy costs by 4-6%. Yet many plans don’t actively encourage generic use.

Actionable Generic Strategies

Automatic Generic Substitution Work with your PBM to enable automatic generic substitution at the pharmacy level. If a brand-name drug is prescribed but a therapeutic equivalent exists, the pharmacist automatically dispenses the generic unless the physician explicitly indicates “brand medically necessary.”

Enhanced Generic Incentives Some plans use zero-dollar copays for preferred generics to drive utilization. While this increases plan cost slightly upfront, the overall drug spend typically decreases due to higher generic volumes.

Therapeutic Interchange Programs Your PBM can identify brand-name drugs with generic alternatives in the same therapeutic class and encourage switching through copay differentials. For example, encouraging employees to use generic lisinopril instead of brand-name Prinivil.

Negotiating with Your PBM

Preparation is Critical

Before renewal meetings, your broker should provide:

• Detailed utilization reports by therapeutic category
• Competitor pricing benchmarks
• Rebate reconciliation statements
• Specialty drug spend analysis

Come prepared with specific requests rather than vague cost-reduction goals.

Key Negotiation Points

1. Rebate Transparency and Pass-Through

Ask your PBM directly: “What rebates were earned on our plan?” Then ask: “What portion is being passed back to us?” A quality broker negotiates for 100% rebate pass-through or negotiates specific rebate commitments upfront.

2. Network Adequacy at Lower Cost

Many PBMs have multiple pharmacy networks at different cost levels. Evaluate whether you can move to a more restrictive network (fewer locations, mail-order incentives) without materially impacting employees.

3. Mail-Order Program Optimization

Mail-order pharmacies typically cost 40-50% less per prescription than retail for maintenance medications. Push your PBM for:

• Higher incentives for mail-order use
• Mandatory mail-order for chronic conditions (after an initial retail fill)
• 90-day supply discounts

4. Clinical Quality Measures

Ensure cost negotiations don’t sacrifice clinical outcomes. Request:

• Medication therapy management programs
• Adherence monitoring for chronic conditions
• Diabetes and hypertension disease management programs

These investments often reduce downstream medical costs.

Small Business Considerations

If you have 50-200 employees, your negotiating power is limited. However, you can still:

• Audit your current PBM’s performance (takes 2-3 weeks)
• Evaluate alternative PBMs during renewal
• Work with a broker who has aggregate volume to negotiate better terms
• Implement high-impact strategies like preferred generic formularies

Larger employers (500+ employees) have more leverage but also more complexity—pharmacy optimization becomes even more critical.

Red Flags During Renewal

Be cautious if your broker or PBM:

• Resists providing detailed rebate information
• Claims they “can’t change” your formulary
• Won’t benchmark your plan against competitors
• Guarantees cost reductions without explaining how
• Discourages moving to mail-order or generic programs

These are signs you need a more aggressive negotiation or potentially a new advisor.

Action Items for Your Next Renewal

1. Request a pharmacy audit from your broker covering the past 12-24 months
2. Ask three specific questions about rebates, generic utilization, and specialty spend
3. Evaluate formulary opportunities in 2-3 high-spend therapeutic categories
4. Request benchmark data comparing your plan to similar-sized employers
5. Schedule a renewal meeting with specific cost-control proposals, not just renewal rate discussions

Conclusion

Pharmacy cost control isn’t about cutting corners on employee health—it’s about intelligent design and transparent negotiations. By understanding how PBMs work, leveraging formulary tools, optimizing generics, and asking tough questions during renewal, you can meaningfully reduce this fast-growing expense.

The employers winning the pharmacy cost battle aren’t the ones making cuts; they’re the ones making strategic choices with their advisor’s guidance. Your next renewal meeting is an opportunity to implement one or more of these strategies.

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Nexus Benefit Solutions is an independent employee benefits advisory firm based in West Michigan. Questions? Reach out at jason@nexusbenefitsolutions.com or call 616-425-9740.