Is using topical finasteride after gynecomastia & high estrogen side effect a good solution?

Question

I developed early gynecomastia after 10 months of taking finasteride orally, my estrogen levels increased. Is taking a low dose applied topically to the scalp a good solution so as not to affect serum hormone levels?

Anna Chacon, MD, FAAD · Answer

Topical finasteride has been explored as an alternative to oral finasteride to minimize systemic side effects, such as gynecomastia and changes in hormone levels. The rationale behind using topical finasteride is that it may reduce scalp DHT levels while having a lesser impact on systemic DHT and estrogen levels, potentially decreasing the risk of systemic side effects.

However, while some studies suggest that topical application may result in lower systemic absorption compared to oral administration, individual responses can vary, and some degree of systemic absorption might still occur. It is important to monitor hormone levels and any potential side effects closely if switching to topical finasteride.

A thorough evaluation of the benefits and risks, potentially including a discussion with an endocrinologist or dermatologist, is advised to determine if this approach is suitable for your situation.

Ross Kopelman, DO · Answer

If you've experienced gynecomastia and elevated estrogen levels from oral finasteride, topical finasteride could be a viable alternative. Topical application is designed to target the scalp directly, which can significantly reduce its impact on overall hormone levels in the body compared to oral forms. For some patients, this option can help limit side effects like gynecomastia, as the medication is less likely to affect systemic estrogen levels.
However, it's important to keep in mind that while topical finasteride is generally less likely to lead to hormonal side effects, everyone responds differently. Starting with a lower concentration and monitoring for any changes could help achieve a balance between effective hair loss treatment and minimizing side effects.

Is using topical finasteride after gynecomastia & high estrogen side effect a good solution?

Answers (2)

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