Finasteride is sometimes used in gender-affirming care for transgender women (assigned male at birth) as part of hormone therapy to help reduce hair loss and promote feminisation. However, it’s important to note that finasteride can have potential side effects, which may include:
| Side Effect | Description |
| Sexual side effects | Finasteride can affect sexual function in some individuals, including decreased libido, erectile dysfunction, and decreased ejaculate volume. |
| Breast tenderness | Some individuals may experience breast tenderness or breast enlargement (gynecomastia) while taking finasteride. |
| Mood changes | While less common, some individuals may experience mood changes such as depression or anxiety while taking finasteride. |
| Allergic reactions | Although rare, allergic reactions to finasteride can occur, presenting with symptoms such as rash, itching, swelling of the face, lips, or tongue, and difficulty breathing. |
| Other side effects | Other potential side effects of finasteride can include headache, dizziness, testicular pain, and skin rash. |