Lisinopril
Zestril, Prinivil
Also known as: Aleve, Naprosyn
NSAID, longer-acting. Renal and gastric effects around fasting and vomiting; adds bleeding risk with an anticoagulant.
Severity
Minor — monitor
Mechanism
Other clinical interaction
Protocol Status
Continues — any change is the prescribing physician's decision, made before arrival
Restart Delay
Physician discretion
What "Minor — monitor" Means
Generally safe. May require a hold on dosing day or post-treatment monitoring depending on individual response.
Clinical Action
Prefer to avoid around the fast and the acute phase, especially with any anticoagulant.
Where the Washout Happens
Continues — any change is the prescribing physician's decision, made before arrival
This medication is not stopped on our initiative and there is no washout interval we can set: what governs it is a clinical judgement that belongs to the prescribing physician, not a waiting period we can count. It is documented, flagged to the medical team, and the plan is confirmed with the prescriber BEFORE any invasive procedure or IV placement. Stopping an anticoagulant or antiplatelet without that conversation carries its own risk, which is why the default here is to continue and confirm rather than to hold.
Post-Treatment Restart
Restart at physician discretion once acute window closes.
The Pharmacology
This class has clinical considerations that do not fit a single mechanism category. Review the specific risk and clinical action for handling, and discuss with the prescribing physician.
Same Mechanism
Same Severity Tier
Common Questions
Minor — monitor. NSAID, longer-acting. Renal and gastric effects around fasting and vomiting; adds bleeding risk with an anticoagulant. Prefer to avoid around the fast and the acute phase, especially with any anticoagulant.
Continues — any change is the prescribing physician's decision, made before arrival. This medication is not stopped on our initiative and there is no washout interval we can set: what governs it is a clinical judgement that belongs to the prescribing physician, not a waiting period we can count. It is documented, flagged to the medical team, and the plan is confirmed with the prescriber BEFORE any invasive procedure or IV placement. Stopping an anticoagulant or antiplatelet without that conversation carries its own risk, which is why the default here is to continue and confirm rather than to hold.
Other clinical interaction. This class has clinical considerations that do not fit a single mechanism category. Review the specific risk and clinical action for handling, and discuss with the prescribing physician.
In many cases yes. Our medical team works with your prescribing physician to taper or substitute medications safely before treatment. The right substitution depends on the underlying condition you are treating with Naproxen — contact us for an individual review.
Checking more than one medication? Use the interactive Drug Interaction Checker to screen your full medication list at once.
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