Estrogen (weak)
Who should not take Estriol
A contraindication is a condition under which Estriol (Estriol) should not be taken because the risk outweighs the benefit. Estriol has both absolute contraindications (do not use) and relative cautions (use only after careful review). This page summarises both at the 0.1%, 0.5mg, 1mg, 2mg dosing range.
Absolute contraindications
According to the prescribing information for Estriol, 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 Estriol 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. Estriol binds estrogen receptors but with shorter receptor occupancy and weaker activation than estradiol, producing a 'weak' estrogenic effect.
Frequently asked questions
Can someone with heart disease take Estriol? ▾
Some forms of heart disease are absolute contraindications for Estriol, particularly with nitrate use or recent cardiovascular events. Stable, well-controlled cardiovascular disease may allow Estriol use under specialist supervision. The prescribing information for Estriol should be reviewed.
Is Estriol safe with kidney problems? ▾
Mild to moderate kidney impairment usually allows Estriol at adjusted lower 0.1%, 0.5mg, 1mg, 2mg doses. Severe kidney failure is often a contraindication or requires substantial dose reduction. The prescriber decides based on lab results and concurrent medications.
Products containing Estriol
More on Estriol
- With alcoholEstriol and alcohol — is it safe to drink?
- With foodShould Estriol be taken with food?
- Side effectsEstriol side effects: common, rare and warning signs
- Dosage guideEstriol dosage guide: how much to take and when
- OnsetHow fast does Estriol start working?
- DurationHow long does Estriol last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.