Medication and Pharmacy Errors
in Ohio

The anatomy of a medication error

A medication error can occur at any point in the medication process — from the moment a physician decides to prescribe a drug to the moment the patient takes it (or has it administered). Each step in the process involves a different healthcare professional with a distinct legal duty, and each step presents an opportunity for a preventable mistake.

The medication process has four critical stages: prescribing (the physician selects the drug, dose, route, and frequency), dispensing (the pharmacist fills the prescription and verifies accuracy), administration (the nurse or patient takes or gives the medication), and monitoring (ongoing evaluation of the drug’s effect, side effects, and need for dose adjustment).

Errors at each stage produce different types of injuries. A prescribing error might result in a dangerous drug interaction. A dispensing error might give a patient an entirely wrong medication. An administration error might deliver a lethal overdose through an IV. A monitoring failure might allow toxic drug levels to build up in the blood over weeks. Mike traces the error back through the entire chain of custody to determine exactly what went wrong, when, and who is responsible.

Prescribing errors: when the doctor gets it wrong

Prescribing errors are the most common type of medication error and occur when the physician selects an inappropriate medication, prescribes the wrong dosage, fails to account for the patient’s known allergies, or fails to check for drug interactions with the patient’s existing medications.

Common prescribing errors include:

• Wrong drug selection — prescribing a medication the patient is allergic to, or choosing a drug contraindicated by the patient’s medical conditions (e.g., prescribing NSAIDs to a patient with kidney disease)
• Wrong dosage — prescribing a dose that is too high (causing toxicity) or too low (failing to treat the condition), or failing to adjust the dose for renal or hepatic impairment
• Drug interaction failures — prescribing a new medication without checking it against the patient’s current medication list (e.g., prescribing a fluoroquinolone antibiotic to a patient on warfarin, dramatically increasing bleeding risk)
• Look-alike/sound-alike confusion — prescribing the wrong drug because its name is similar to the intended one (e.g., hydroxyzine vs. hydralazine, Celebrex vs. Cerebyx)

The standard of care requires physicians to review the patient’s medical history, current medications, and allergy list before prescribing. Modern electronic health records (EHRs) include clinical decision support that alerts physicians to potential interactions and allergies. Overriding these alerts without clinical justification — or using a system that lacks these safeguards — is strong evidence of negligence. Mike reviews prescribing records, EHR audit trails, and alert override logs to establish exactly how the error occurred.

Pharmacy dispensing errors: retail and hospital

Pharmacists serve as a critical safety check in the medication process. Ohio law and the Ohio Board of Pharmacy regulations under Ohio Administrative Code Chapter 4729 require pharmacists to verify the accuracy of every prescription they fill — including the drug identity, strength, quantity, directions, and potential interactions with the patient’s other medications.

Dispensing errors occur when the pharmacist gives the patient the wrong medication, the wrong strength, the wrong quantity, or fails to catch a prescribing error that should have been identified during the verification process. Common scenarios include:

• Filling a prescription with the wrong drug due to similar names or similar packaging
• Dispensing the wrong strength — giving 10mg tablets when 1mg was prescribed (a tenfold overdose)
• Failing to flag a dangerous drug interaction that the pharmacy’s computer system identified
• Failing to contact the prescribing physician to clarify an ambiguous or suspicious prescription
• Filling a prescription despite documented allergies in the patient’s pharmacy profile

Hospital pharmacy errors present additional risks because medications are often prepared in IV form and administered directly into the bloodstream, leaving no margin for error. Compounding errors (mixing the wrong concentration), labeling errors, and failure to verify high-alert medications (chemotherapy drugs, insulin, anticoagulants, opioids) are common causes of serious hospital medication injuries.

Both the individual pharmacist and the pharmacy (retail chain or hospital) can be held liable. Corporate pharmacies that impose excessive prescription volume quotas on pharmacists — leading to rushed verification and increased errors — may face additional corporate negligence liability. Mike investigates pharmacy staffing levels and workflow conditions to determine whether systemic problems contributed to the error.

Administration errors: the five rights of medication safety

In hospitals and other healthcare facilities, nurses are primarily responsible for administering medications to patients. The universal standard of care for medication administration is the “five rights”:

• Right patient — verify the patient’s identity using at least two identifiers (name and date of birth or medical record number)
• Right drug — verify the medication matches the physician’s order
• Right dose — verify the dosage is correct and appropriate
• Right route — verify the medication is given by the correct route (oral, IV, intramuscular, subcutaneous, etc.)
• Right time — verify the medication is given at the scheduled time

Administration errors occur when any of these rights are violated: a nurse gives medication to the wrong patient (wrong-patient error), administers an IV medication that was intended to be given orally (wrong-route error), gives a medication at the wrong rate through an IV pump (wrong-rate error), or fails to check the medication against the order before administering it.

Many hospitals have implemented barcode medication administration (BCMA) systems that require nurses to scan both the patient’s wristband and the medication barcode before administration. When these systems are in place, bypassing or overriding the barcode check is a clear deviation from the standard of care. When hospitals fail to implement available safety technology, that failure can support a corporate negligence claim against the hospital.

Drug interaction screening failures

Drug interactions are one of the most preventable causes of medication injury. Modern pharmacy systems and electronic health records include comprehensive drug interaction databases that automatically flag potentially dangerous combinations. Despite this technology, drug interaction injuries continue to occur because providers override or ignore alerts.

High-risk drug interactions that are commonly missed or ignored include:

• Warfarin interactions — dozens of medications (antibiotics, antifungals, NSAIDs, SSRIs) potentiate warfarin, increasing the risk of life-threatening bleeding
• Serotonin syndrome — combining multiple serotonergic medications (SSRIs, SNRIs, triptans, tramadol, linezolid) can cause a potentially fatal syndrome of agitation, hyperthermia, and neuromuscular instability
• QT prolongation — many common medications (certain antibiotics, antipsychotics, antiarrhythmics) can prolong the QT interval on EKG, and combining multiple QT-prolonging drugs increases the risk of fatal cardiac arrhythmia (torsades de pointes)
• Opioid-benzodiazepine combination — co-prescribing opioids with benzodiazepines dramatically increases the risk of respiratory depression and death. FDA black-box warnings exist for this combination

Both the prescribing physician and the dispensing pharmacist have independent duties to screen for drug interactions. When both fail to catch a dangerous combination that their respective computer systems flagged, both parties — along with their employers — may be liable. Mike reviews alert override logs, pharmacy records, and EHR audit trails to determine whether available safety warnings were ignored.

Identifying all liable parties in a medication error case

One of the critical challenges in medication error litigation is identifying every party whose negligence contributed to the injury. Because medications pass through multiple hands, liability often extends to multiple parties:

• Prescribing physician — liable for prescribing the wrong drug, wrong dose, or failing to check for interactions and allergies
• Pharmacist — liable for dispensing errors and failure to catch prescribing errors during verification
• Pharmacy corporation — liable for corporate negligence (understaffing, excessive prescription quotas, inadequate safety systems)
• Administering nurse — liable for violating the five rights of medication administration
• Hospital — vicariously liable for employee negligence and independently liable for system failures (inadequate BCMA technology, insufficient pharmacy staffing, poor medication reconciliation processes)
• Drug manufacturer — potentially liable if confusing labeling, packaging, or naming contributed to the error (product liability, not malpractice)

Mike investigates the full medication chain — from prescription to administration — and names every party whose negligence contributed to the injury. In Ohio, joint and several liability rules under R.C. § 2307.22 may allow recovery of the full judgment from any defendant found more than 50% at fault, making it important to include all responsible parties to maximize recovery.

Allergic reactions and failure to check allergy history

Medication allergies are among the most basic and well-documented patient safety data points. Every physician’s office, hospital, and pharmacy maintains allergy information in the patient’s record. Electronic health records display allergy alerts prominently and generate warnings when a prescribed medication matches a documented allergy.

Despite these safeguards, patients are routinely prescribed and given medications they are allergic to — sometimes with fatal results. Anaphylaxis (a severe, whole-body allergic reaction) can cause airway obstruction, cardiovascular collapse, and death within minutes if not treated immediately with epinephrine.

When a patient with a documented penicillin allergy is given amoxicillin, or a patient with a documented sulfa allergy receives Bactrim, the failure to check the allergy list is negligence per se in most circumstances. The allergy information was available, the computer system flagged the danger, and the provider either ignored the alert or failed to check. Mike treats allergy-related medication errors as straightforward liability cases — the evidence of negligence is usually in the electronic record itself.

Proving a medication error case in Ohio

Like all medical malpractice cases in Ohio, medication error claims require proof of four elements: duty (the provider owed a duty of care), breach (the provider deviated from the standard of care), causation (the breach directly caused the injury), and damages (the patient suffered compensable harm).

Under R.C. § 2305.113, medical malpractice claims must be filed within one year of the date of the negligent act or the date the injury was or should have been discovered. Civ.R. 10(D)(2) requires that a complaint alleging medical malpractice be accompanied by an affidavit of merit from a qualified medical expert confirming that the standard of care was breached and that the breach caused the injury.

Key evidence in medication error cases includes: the original prescription or medication order, pharmacy fill records, medication administration records (MARs), the patient’s allergy and medication list, EHR audit trails showing when entries were created and modified, clinical decision support alert logs (showing whether interaction or allergy alerts were generated and overridden), pharmacy staffing records, and the patient’s medical records documenting the injury. Mike obtains and preserves all of this evidence early in the investigation — before records can be altered or retention periods expire.