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Finasteride tablets 1mg


Film-coated tablets containing finasteride.

Drugs List

  • finasteride 1mg tablets
  • PROPECIA 1mg tablets
  • Therapeutic Indications


    Alopecia androgenetica in males



    Take 1mg once daily with or without food.

    There is no evidence that an increase in dosage will result in increased efficacy and treatment should be continuously assessed. Approximately 3 to 6 months of daily treatment are required before there is a stabilisation of hair loss and continuous use is recommended to sustain the benefit. If treatment ceases, the beneficial effects begin to reverse by 6 months and return to baseline by 9 to 12 months.


    Children under 18 years

    Precautions and Warnings

    Glucose-galactose malabsorption syndrome
    Hepatic impairment
    Lactose intolerance

    Contains lactose
    Staff: Not to be handled by pregnant staff
    Reassess need for continued treatment at regular intervals of 3-6 months
    Advise patient to report any breast changes e.g. lumps, pain or discharge
    Advise patient to report any new or worsening depression/suicidal ideation
    Consider discontinuing if depression develops
    PSA assay will be affected by decrease in PSA during treatment
    May cause impaired fertility
    Male: Use of condoms advised if partner pregnant or may become pregnant
    Women should not handle crushed/broken tablets due to risk of absorption

    Pregnancy and Lactation


    Finasteride is contraindicated for use in women.


    Finasteride is contraindicated for use in women.

    Side Effects

    Breast enlargement
    Breast neoplasm
    Breast tenderness
    Decreased ejaculate volume
    Ejaculation disorders
    Erectile dysfunction
    Hypersensitivity reactions
    Increases in hepatic enzymes
    Reduced libido
    Sexual dysfunction (male)
    Suicidal tendencies
    Testicular pain


    It is strongly recommended that the UK National Poisons Information Service be consulted on cases of suspected or actual overdose where there is doubt over the degree of risk or about appropriate management.

    The following number will direct the caller to the relevant local centre (0844) 892 0111

    Information may be obtained if you have access to ToxBase the primary clinical toxicology database of the National Poisons Information Service. This is available via password on the internet ( ) or if this is unavailable at the backup site ( ).

    Further Information

    Last Full Review Date: November 2019

    Reference Sources

    Summary of Product Characteristics: Propecia 1mg tablets. Merck Sharp and Dohme Limited. Revised May 2019.

    NICE Evidence Services Available at: Last accessed: 26 November 2019

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    Medscape UK | Univadis prescription drug monographs & interactions are based on FDB Multilex Content

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    FDB Disclaimer : FDB Multilex is intended for the use of healthcare professionals and is provided on the basis that the healthcare professionals will retain FULL and SOLE responsibility for deciding what treatment to prescribe or dispense for any particular patient or circumstance.