Understanding pharmacy benefit management and its role in the pharmaceutical industry

What is pharmacy benefit management (PBM)?

Pharmacy benefit management is the business of acting as a middleman between drug makers, pharmacies, and health insurers to keep medicines affordable and easy to get.

• PBMs sit in the middle of the drug supply chain and connect payers, pharmacies, and manufacturers.
• They negotiate rebates, set medication lists, and help lower what patients pay.
• Critics want more rules on the sector, mainly around transparency and how rebates are shared.

The pharmacy benefit management (PBM) market is competitive, fast-moving, and still growing. It works behind the scenes to deliver affordable drugs and make medicines easier to get for everyone.

However, critics keep pushing the PBM industry to move away from chasing rebates. Instead, they want it to focus on better drug spending for both consumers and companies. So this guide shows how pharmacy benefit management works and how to use it to your advantage.

What is pharmacy benefit management?

As an industry, pharmacy benefit management (PBM) refers to organizations that act as a go-between. In short, they link drug manufacturers, pharmaceutical companies, and insurance providers.

The industry is a key part of the drug supply chain. Because of this, pharmacy benefit managers connect employers, insurance claimers, drug wholesalers, and pharmacies. As a result, people get service at the best possible costs.

Besides serving as a liaison for these groups, pharmacy benefit managers also handle the following tasks:

• Keeping medication lists on behalf of health insurers
• Checking how each medication affects consumers
• Settling the out-of-pocket drug costs
• Negotiating rebates and discounts from drug companies
• Contracting individual pharmacies to reimburse distributed drugs in the market

Market research firm 360 Research Reports tracks the global PBM industry, which has grown into a major market. Across 2025 analyst estimates, the sector is valued between roughly $475 billion and $810 billion. Most expect steady growth through the early 2030s. For a wider view, see how healthcare outsourcing supports the same goal of lower costs and better care.

How does pharmacy benefit management work?

The PBM sector helps employers design and run a health insurance plan for their workers. Then, pharmacy benefit managers manage the plan and teach workers about their coverage.

Besides this, they also handle insurance claims, rebate reimbursement, clinical programs, and drug utilization reviews. In other words, they support the whole health insurance lifecycle.

Meanwhile, for drug makers and patients, pharmacy benefit managers help put the most affordable drugs and treatments on the market. So they take charge of the following processes:

• Rebate programs. First, PBMs negotiate rebates or discounts from drug makers. Then they pass these to health payers.
• Formulary coverage. Working with physicians, PBMs set the formulary or medicine list. As a result, health payers get the most effective and affordable drugs.
• Step therapy programs. This step shows that a patient has tried an affordable medicine first. Only then do they move to a pricier option that may work better.
• Prior authorization programs. This is a cost-saving process. It helps stop improper prescribing or the use of a certain medication.

Many of these steps sit next to core back-office tasks like medical billing management and insurance claim processing. As a result, many payers run them together for a smoother workflow.

Advantages of having a pharmacy benefit manager

Hiring a pharmacy benefit manager is fast gaining popularity. In short, it is a smart way for companies to manage their prescription drug costs. Here are the main benefits of hiring one.

Reduced drug spending

There are three main ways a PBM helps cut drug spending. First, it negotiates better prices from drug makers. Next, it encourages the use of lower-cost drugs. Finally, it promotes generic drugs.

Drug makers usually keep a price list called the wholesale acquisition cost (WAC). This list does not include discounts or rebates. So PBM managers negotiate a lower price for these medicines. Then they pass that saving on to their clients.

Increased access

PBMs connect with a large network of healthcare providers and health insurers. As a result, they can give employers and patients better access to medicine. For teams that need extra hands, healthcare support and offshore staffing can help scale that reach.

Their push to secure better prices and pass rebates to consumers also helps. Because of this, more patients can reach new and innovative drugs. Moreover, their formularies help patients understand the care they can get in their health plan.

Safety monitoring

Pharmacy benefit managers play an active role in drug safety. They work with pharmacies and manufacturers to make sure patients get the right medication. They also check that medicines are stored and shared the right way.

PBM managers advise employers on plan designs and clinical programs too. For example, they offer quantity edits, step therapy, and prior authorizations. As a result, they can safely monitor how patients use their drugs.

Regulations needed in the pharmacy benefit management sector

PBM companies are in a strong spot to control drug prices and protect patients. However, the industry can also be misused for fraud. Right now, PBMs do not face the same rules as other healthcare providers. Because of this, some have taken advantage of the gap.

So critics say the industry should be regulated in the following ways.

Transparency

PBM companies are known to make drug makers sign “gag orders” before they get paid. This means retail pharmacies cannot share the discount deals they have with PBMs.

This lack of transparency can push the use of higher-cost drugs. It also worries stakeholders, since they do not hand the medicines to consumers directly. Industry analysts say more transparency could help the whole sector, even small PBM agencies. As a result, small players could offer the same discounts and market share as larger firms.

Passing rebates

One core job of a PBM is to manage rebates. A rebate is money a PBM gets from a drug maker or pharmacy. In return, the PBM adds that firm’s drugs to its list.

There is a growing view that the rebate system needs reform. Because rebates are not made public, there is no way to prove consumers get the best prices. So some critics believe most rebates should go to health insurers and payers. If this were required, the savings could lower the price of health plans even further.

Spread pricing ban

“Spread pricing” is a PBM practice. Here, health plans and employers get a higher reimbursement cost than the PBM actually paid. Again, this happens due to the lack of transparency in the process.

Experts believe policymakers should ban this practice. As a result, payers and employers would avoid overpaying for prescriptions and treatments. Other critics also urge governments to make PBMs update their cost schedules to reflect price rises for generic drugs.

Frequently asked questions about pharmacy benefit management

What does a pharmacy benefit manager do?

A pharmacy benefit manager runs the drug part of a health plan. In short, it sets medicine lists, negotiates rebates, and settles what patients pay. It also links payers, pharmacies, and drug makers so the whole system runs smoothly.

Why are PBMs important in healthcare?

PBMs help keep drug costs down for both employers and patients. They negotiate lower prices and push the use of generics. As a result, more people can reach the medicines they need. Related fields like telepharmacy extend that access even further.

How do PBMs make money?

PBMs earn money in a few ways. They keep part of the rebates from drug makers. They also charge service fees to health plans. In some cases, they earn through spread pricing, which many critics want banned.

Are PBMs regulated?

PBMs face fewer rules than most healthcare providers. However, that is starting to change. Lawmakers now push for more transparency, fairer rebate sharing, and limits on spread pricing.

How can businesses benefit from a PBM?

Businesses use a PBM to manage prescription drug costs for their staff. A good PBM lowers spending and improves access to care. Because of this, it can make a health plan more affordable and more useful for employees.

Key takeaways

• Pharmacy benefit management links drug makers, pharmacies, and insurers to keep medicines affordable.
• PBMs cut drug spending through rebates, generics, and lower-cost options.
• They also widen access to care and monitor drug safety for patients.
• Critics want more rules, mainly on transparency, rebate sharing, and spread pricing.
• For businesses, a strong PBM can lower costs and improve the value of a health plan.