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What Evidence Proves Medication Error Claims?

Law Offices of McCullough & Leboff, P.A. Aug. 26, 2025

Medication error cases often unfold in hospitals, pharmacies, nursing homes, and even private medical practices. They can involve everything from the wrong dose to the wrong drug altogether. And while it may seem like a straightforward issue, proving that a healthcare provider’s mistake caused harm often involves layered details, records, and analysis.

At Law Offices of McCullough & Leboff, P.A., we’ve helped people work through a wide range of personal injury claims in Fort Lauderdale, Florida, including those involving medication errors. When we pursue these cases, we know just how much is at stake—not just physically, but emotionally and financially as well.

To support a personal injury case based on a medication mistake, we need clear, compelling evidence that proves what went wrong, how it happened, and what damage it caused. Let’s take a closer look at what kind of evidence we focus on, how it fits together, and why it matters so much when building a strong personal injury claim.

Medical Records

Medical records are almost always a personal injury attorney’s starting point. These documents tell your attorney what drug was prescribed, at what dosage, when it was administered, and what the patient’s medical history looked like beforehand. They help establish the timeline and show whether proper procedures were followed.

Attorneys usually look for:

  • Prescription notes: These indicate what the doctor intended to prescribe and in what dosage.

  • Nursing administration logs: These show when and how the medication was given, and by whom.

  • Progress notes: These can reveal how the patient responded after receiving the medication.

  • Allergy warnings or contraindications: These often appear in charts and can demonstrate clear oversights if ignored.

When these records show discrepancies—such as a mismatch between what was prescribed and what was administered—they form a critical piece of the personal injury puzzle.

Pharmacy Documentation

In many medication error cases, the pharmacy is just as important as the prescribing doctor. Pharmacists are responsible for dispensing the correct medication, reviewing patient histories, and alerting providers to any potential risks. When pharmacists make mistakes, we’ll need to gather:

  • Dispensing logs: These help verify what medication was filled and when.

  • Communication records: These may show whether a pharmacist reached out to clarify a confusing or dangerous prescription.

  • Labeling records: Incorrect labels can easily lead to patients taking the wrong dose or drug.

If a medication was filled improperly or with the wrong instructions, pharmacy documentation can make that clear—and that clarity matters when proving a medication error caused the personal injury.

Witness Testimony

Attorneys also turn to people who were there—nurses, pharmacists, other healthcare professionals, and sometimes even family members. Their accounts can confirm what happened when the medication was administered or filled.

Witnesses might describe:

  • Observed errors: If someone saw a nurse administer the wrong dose, that testimony adds weight to our claim.

  • Conversations about confusion or warning signs: These can show that professionals involved had reason to know a mistake might happen.

  • Standard practices: Testimony about how things are supposed to be done helps highlight where things went off track.

When medical records are incomplete—or when a facility tries to shield its process—eyewitness accounts often fill in the gaps and make the picture clearer.

Professional Opinions

In a personal injury case involving a medical mistake, attorneys usually need to show that the provider failed to meet the standard of care. That’s where a professional opinion becomes valuable. Medical professionals can evaluate the records, examine the timeline, and give an informed view of what should’ve happened.

These opinions usually cover:

  • Whether the correct drug was prescribed

  • Whether the method of administration was appropriate

  • Whether monitoring was handled correctly afterward

  • If the mistake likely caused or contributed to the injury

This step is essential because the law doesn’t assume a provider is at fault just because someone was harmed. An attorney must prove that they acted in a way other professionals would consider unreasonable or unsafe.

Proof of Harm

Not every medication error leads to a personal injury claim. That’s because the law typically requires actual harm to pursue compensation. So, even if a nurse gave the wrong drug, if it caused no injury, there may be no legal case.

To show harm, attorneys collect:

  • Hospital admission and discharge records: These show changes in condition and treatments following the error.

  • Lab test results: These can demonstrate adverse effects or worsening conditions.

  • Specialist referrals or follow-up treatments: These highlight that the injury required additional medical care.

  • Pain and suffering documentation: This might include counseling records or personal journals.

This type of evidence helps tie the error to the injury. Without it, your attorney can’t build a viable personal injury case, even if the mistake was clear.

Photographs, Video, and Physical Evidence

In some cases, attorneys also use visual or physical evidence to support our claim. For instance, pill bottles with incorrect labels or packaging that conflicts with what was prescribed can be powerful. Sometimes hospital footage shows a patient being administered drugs or reveals errors in real time.

Some examples include:

  • Photos of mislabeled medication: These help connect pharmacy error to personal injury.

  • Surveillance footage: Often available in hospitals or nursing homes, this can confirm timing or staff actions.

  • Medication packaging: Sometimes, the type or dose is physically different from what should’ve been given.

While not always available, this kind of evidence often adds a layer of credibility to written and spoken testimony.

Facility Policies and Procedures

When medication errors happen, it’s often not just about one person. The structure of the facility matters too. Was the nurse overworked? Was the pharmacist under pressure to fill too many prescriptions? Internal policies help your attorney find out.

Attorneys often examine:

  • Training manuals: These help your attorney see what staff were expected to know and follow.

  • Internal investigation reports: Many facilities conduct their own reviews after a medication error. These reports can be valuable.

  • Staffing schedules: These might show that staff were stretched too thin to provide safe care.

  • Policy checklists or sign-offs: These sometimes prove a step was skipped or incorrectly marked as complete.

This type of evidence helps show whether the error was a one-off slip—or part of a larger problem that led directly to the personal injury.

Patient and Family Statements

Medical and pharmacy records may show the facts, but personal accounts make the case human. They describe what happened after the medication error, how it changed daily life, and what recovery looked like.

These statements often highlight:

  • Changes in health or mobility

  • Emotional and mental stress following the error

  • New limitations in work, travel, or daily care

  • Impact on family members or caregivers

These stories are important because they speak to damages—the part of a personal injury claim that reflects real suffering, lost wages, ongoing care needs, and diminished quality of life.

Timelines Matter When Filing a Claim

Florida law generally gives you two years from the date the injury is discovered (or reasonably should’ve been discovered) to file a personal injury claim for medical malpractice. Gathering evidence takes time, so acting quickly helps protect your attorney’s ability to file a strong case.

Key dates attorneys track include:

  • When the prescription was written

  • When the medication was filled and administered

  • When symptoms or injuries began

  • When the issue was identified and confirmed

By building a clear timeline, an attorney wil connect the dots for the court and help make the case as straightforward as possible.

How All the Evidence Fits Together

Medication error cases aren’t built on a single record or one testimony—they require layers of proof that support one another. When attorneys gather all of the following, they create a strong foundation:

  • Written records that document what was supposed to happen

  • Eyewitness and professional statements that explain what actually happened

  • Photos and physical evidence that bring errors to life

  • Patient stories that show the real impact of the error

Together, these elements form the basis of a personal injury claim that shows negligence, causation, and damages. Without even one of these pillars, the case can become harder to prove.

Contact Us Today

If you or someone you love was harmed by a medication mistake, it’s important to take the next step. The Law Offices of McCullough & Leboff, P.A. will review your case, gather the right evidence, and explain your legal options. We serve Fort Lauderdale, Florida, and the surrounding areas, including Davie, Hollywood, Pembroke Pines, Weston, Sunrise, and Plantation. Reach out today.