How Long Do Medication Malpractice Cases Take in Illinois?
- HM&M
- Mar 17
- 2 min read

If you’ve suffered harm due to a prescription error, incorrect dosage, or adverse drug interaction, you may be considering a medication malpractice claim. One of the most important questions to understand at the beginning of the process is: How long will this take?
While every case is different, most medication error cases in Illinois follow a similar legal process. Below is an overview of the typical timeline and what can affect how long your case may take to resolve.
Phase 1: Case Review and Expert Evaluation (1–3 Months)
The first step is to meet with a medical malpractice attorney and begin reviewing:
Your medical records and prescription history
Pharmacy and provider documentation
Any adverse reactions or injuries
Your attorney will consult with a medical expert to determine whether your injuries were caused by a provider or pharmacist’s failure to follow the standard of care.
Phase 2: Filing the Lawsuit (1–2 Months)
If the case is viable, your lawyer will prepare a formal complaint and file it in civil court. Illinois law requires an affidavit of merit, which includes:
A written opinion from a licensed physician or pharmacist
Confirmation that the medication error likely constitutes malpractice
The lawsuit is then served on all defendants, who may include doctors, nurses, pharmacists, or institutions.
Phase 3: Discovery Process (6–18 Months)
This is typically the most time-consuming part of the process. During discovery:
Attorneys exchange evidence, including prescriptions, medical charts, and communications
Depositions are taken from providers, pharmacists, and expert witnesses
The scope and details of the medication error are fully explored
Many cases settle during or after discovery, especially when the evidence of negligence is strong.
Phase 4: Settlement Negotiations or Mediation (2–6 Months)
Before trial, both parties may attempt to reach a settlement. Your attorney will:
Evaluate offers for fairness and adequacy
Negotiate on your behalf
Possibly schedule formal mediation with a neutral third party
If a settlement is reached, the case can be resolved without going to court. If not, it proceeds to trial.
Phase 5: Trial (3–10 Days in Court, Typically 2–4 Years After Filing)
If your medication malpractice case goes to trial:
Expect it to take 3 to 10 days in court
The total timeline from the filing of the case to trial is usually 2 to 4 years
The length may vary depending on court scheduling, the number of defendants, and the complexity of the case.
Factors That May Delay a Case
Multiple defendants or medical providers involved
Extensive expert testimony or competing opinions
Difficulty retrieving records from pharmacies or hospitals
Appeals or procedural delays
Why These Cases Take Time
Medication malpractice cases can be medically and legally complex. Proving causation, understanding pharmacological standards, and navigating expert reviews all require careful preparation—but these steps increase your chance of success.
Get Help From a Medication Malpractice Attorney in Illinois
At Hurley McKenna & Mertz, P.C., we represent victims of medication-related negligence throughout Illinois. Whether your case involves prescription errors, drug interactions, or pharmacy misfills, we’ll manage your case efficiently while pursuing full compensation.
Contact us today for a free consultation.
Serving patients across Chicago, Cook County, and the state of Illinois.


