Who should not take Tamiflu
A contraindication is a condition under which Tamiflu (Oseltamivir) should not be taken because the risk outweighs the benefit. Tamiflu has both absolute contraindications (do not use) and relative cautions (use only after careful review). This page summarises both at the 30mg, 45mg, 75mg dosing range.
Absolute contraindications
According to the prescribing information for Oseltamivir, absolute contraindications typically include severe allergic reactions to the active ingredient or excipients, severe hepatic or renal impairment, certain cardiovascular conditions, and concurrent use of specific interacting medications. The exact list depends on the molecule and is detailed in the official label.
Relative cautions
Relative cautions are situations where Tamiflu can be used but with extra monitoring, dose reduction or alternative considered. These often include mild-to-moderate organ impairment, age extremes, multiple comorbidities, and complex medication regimens. Oseltamivir is a prodrug rapidly hydrolysed by hepatic esterases to the active metabolite oseltamivir carboxylate, which selectively inhibits the neuraminidase enzyme on the surface of influenza A and…
Frequently asked questions
Can someone with heart disease take Tamiflu? ▾
Some forms of heart disease are absolute contraindications for Tamiflu, particularly with nitrate use or recent cardiovascular events. Stable, well-controlled cardiovascular disease may allow Tamiflu use under specialist supervision. The prescribing information for Oseltamivir should be reviewed.
Is Tamiflu safe with kidney problems? ▾
Mild to moderate kidney impairment usually allows Tamiflu at adjusted lower 30mg, 45mg, 75mg doses. Severe kidney failure is often a contraindication or requires substantial dose reduction. The prescriber decides based on lab results and concurrent medications.
More on Tamiflu
- With alcoholTamiflu and alcohol — is it safe to drink?
- With foodShould Tamiflu be taken with food?
- Side effectsTamiflu side effects: common, rare and warning signs
- Dosage guideTamiflu dosage guide: how much to take and when
- OnsetHow fast does Tamiflu start working?
- DurationHow long does Tamiflu last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.