5 Contraindications and Medication Risk

Assess medication risk

Safe medication administration involves more than checking the drug and dose. Compare the order with the patient’s current condition, allergies, medication history, relevant assessment findings, and the medication’s current labeling.

For a specific drug, consult its current prescribing information, especially the sections titled Contraindications, Warnings and Precautions, Dosage and Administration, and Drug Interactions.

Distinguish contraindications and precautions

A Contraindication is a situation in which the risk clearly outweighs the potential benefit. If a condition in the patient’s history appears to match a listed contraindication, do not administer the medication; hold the dose and promptly clarify the order with the prescriber or pharmacist. Do not independently reduce the dose or substitute another treatment.

A Precaution signals a risk that may require assessment, monitoring, or another safety measure. It does not automatically prohibit the medication. Follow ordered hold parameters or facility protocol, assess the patient, and contact the prescriber for guidance when findings raise concern. Do not independently change or discontinue the therapy.

Consider kidney function

Check whether the patient’s kidney function and the medication’s renal dosing guidance have been reviewed before the first dose of a new medication. Kidney disease can affect how the body eliminates some medications, and those drugs may require a different dose.

Verify the current order and the drug-specific recommendations. Promptly clarify concerns with the prescriber or pharmacist rather than independently changing the dose or interval, or telling the patient to skip the medication.

Review medicines, foods, and supplements

A potential Drug interaction may involve another medicine or a food. When a patient reports regularly drinking grapefruit juice and the medication information warns against it, check the specific medication guidance and consult the pharmacist or prescriber about the interaction and appropriate next steps. Grapefruit affects some medicines, but not all medicines in a category; the size and direction of the interaction can vary.

A useful medication history includes prescription drugs, over-the-counter medicines such as pain relievers, vitamins, and herbal or dietary supplements. Include all reported products and check for relevant interactions before proceeding. Share the information with the care team; do not assume supplements cannot interact or direct blanket changes to medicines or nonprescription products without qualified guidance.

Address pregnancy-related concerns

Pregnancy-related information and risks vary by medication. If a patient may be pregnant and asks whether a new prescription is safe, check the medication-specific information and consult the prescriber or pharmacist before advising about starting, stopping, or changing it.

Do not reassure the patient that all prescribed medicines are safe in pregnancy, advise stopping every medication, or recommend an herbal product as a substitute. Patients should not start, stop, or change prescribed medicines on their own, and supplements should also be discussed with a health professional.

Respond to a severe allergic reaction

Facial or tongue swelling, wheezing, and difficulty breathing shortly after a medication begins infusing may signal Anaphylaxis, a life-threatening emergency. Stop the suspected medication, activate the emergency response, and follow the applicable anaphylaxis protocol, including prompt epinephrine treatment as indicated by protocol or authorized orders.

Do not delay urgent action to see whether symptoms worsen, wait to assess after merely slowing the infusion, or rely on an oral antihistamine while breathing symptoms continue.

• Medication reconciliation

• Medication labeling