Pharmacie Kennedy Mulhouse

Finasteride and PSA: why report treatment before the blood test?

For the cited formulations used for an enlarged prostate, PSA lowering with finasteride must be considered in medical interpretation.

Editorial illustration of a health discussion; it does not depict the pharmacy’s actual premises.
Editorial illustration — Kennedy Pharmacy Mulhouse

General information, not an individual diagnosis. Ask a healthcare professional if you are unsure about your situation.

If a PSA blood test is prescribed, tell the doctor about finasteride. The cited formulations for an enlarged prostate lower this blood marker, which matters for interpretation.

The cited BIOGARAN and TEVA leaflets specify a clinical examination and PSA test before treatment and during follow-up. These examinations remain organised by the doctor.

The prescribing information often describes a rapid PSA decline in the first months, followed by a new baseline. The size of this decrease can vary between people.

A PSA decrease during this treatment does not exclude a coexisting prostate cancer. Even a value within the usual reference interval cannot by itself rule this out.

A sustained PSA increase during treatment requires careful medical assessment. The doctor also considers how the treatment has actually been taken.

Interpretation takes the medicine’s effect on PSA into account. Ask the doctor to explain the result with this information, without applying a numerical correction yourself.

Sources

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