Are Medication Errors Considered Medical Malpractice?

 Posted on May 24, 2026 in Medical Malpractice

Medication errors are more common than most patients know. The Agency for Healthcare Research and Quality estimates that medication errors impact 1.3 million people in the United States every year. While not every mistake leads to a malpractice claim, preventable medication errors can cause serious harm when providers fail to follow proper safety standards. 

In 2026, whether the mistake happened at a hospital, clinic, or pharmacy, the central question is the same: did someone fail to meet the standard of care, and were you hurt as a result? A Cook County, IL medical malpractice lawyer can review what happened and tell you whether you may have a claim.

What Types of Medication Errors Can Lead to a Malpractice Claim in Illinois?

Not every bad outcome from a medication rises to the level of malpractice. The law draws a clear line between a side effect that no one could have predicted and an error that a careful provider should have caught. Illinois courts ask whether the provider deviated from the accepted standard of care. That is the level of skill and care another qualified provider with the same experience in the same situation would have used.

Common medication errors that may support a malpractice claim include:

• Prescribing the wrong drug for a patient's condition or diagnosis

• Ordering a dose that is too high or too low for a patient's weight, age, or kidney function

• Failing to check a patient's allergy history before prescribing or dispensing a medication

• Prescribing two drugs with a known dangerous interaction

• Dispensing the wrong medication or wrong strength

• Giving medication to the wrong patient

Illinois law can hold any provider in the medication chain liable. That includes the physician who wrote the order and the pharmacist who filled it. The nurse who gave the medication and the hospital that employed the staff can also share fault.

Who Is Legally Responsible for a Medication Error in Illinois?

Illinois doctors are licensed under the Illinois Medical Practice Act of 1987, 225 ILCS 60. In a malpractice case, the standard that gives rise to a claim is a doctor failing to meet the accepted medical standard of care. When a doctor's behavior falls below that standard and causes harm, the doctor can face a civil malpractice claim. 

Pharmacists in Illinois are licensed under the Pharmacy Practice Act, 225 ILCS 85. A pharmacist who fills a prescription wrong or misses a drug interaction may be liable alongside the prescribing doctor.

A hospital can face a claim even when a doctor or nurse on staff made the mistake. This can happen when the hospital fails to set up proper safety steps. It can also happen when the hospital does not staff the unit at a safe level or does not train its employees on medication procedures. When a doctor works as an independent contractor, hospital liability is narrower. That distinction requires a close look at how the working relationship was set up.

What Do You Need to Prove in an Illinois Medication Error Malpractice Case?

A malpractice claim requires proof that a provider owed you a duty of care, breached that duty, and directly caused your injury and damages. Those damages can include medical bills, follow-up care costs, lost wages, and pain and suffering. Cases with lasting injury may also include long-term care costs. Keep records of every bill, prescription, and medical visit related to the error. Those documents are the foundation of the damages calculation in a malpractice case.

Illinois also has a two-year statute of limitations for medical malpractice claims under 735 ILCS 5/13-212. In most cases, the clock starts when you knew or should have known the error caused your injury. Missing that deadline bars your claim entirely. 

How the Illinois Affidavit of Merit Requirement Affects Your Case

Illinois requires an affidavit of merit under 735 ILCS 5/2-622. In most cases, your attorney must file an affidavit saying a qualified health professional reviewed the case. A written report from that professional must also explain why the claim has merit and must confirm the claim has a solid basis. If it is not handled right, the case can be dismissed before it reaches a jury or negotiations. 

Contact a Cook County, IL Medical Malpractice Attorney for a Free Consultation

Medication error cases involve multiple liable parties, firm deadlines, and a filing requirement that must be met before a lawsuit can begin. You can bet that hospitals and their insurers will be working with lawyers as soon as a claim is filed, and you should, too. Our Chicago, IL medical malpractice lawyer at Adler Injury Law, Ltd. has built his practice around holding negligent providers and their insurers accountable. He fights to recover what his clients are owed. Call 312-236-2700 today for a free consultation.