Exemestane and Ketoconazole Interaction

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Mechanism-based 60% confidence

Exemestane and Ketoconazole have an interaction requiring monitoring for interaction with 60% confidence. Both Exemestane and Ketoconazole carry androgenic activity. Additive androgenic load increases risk of acne, hair loss, and prostate effects. Monitor for dose-dependent side effects. These compounds primarily affect different organ systems.

Compound Profiles

Exemestane

Steroidal Aromatase Inhibitor | Irreversible Estrogen Control

Exemestane functions as a mechanism-based (suicide) inhibitor of aromatase (cytochrome P450 19A1). Due to its steroidal structure, exemestane is recognized by aromatase as a substrate analogue and enters the enzyme's active site.

Half-life: ~24 hours Typical dose: 12.5mg EOD or 25mg E3D (estrogen management) pct, anabolic
androgen receptoraromatase androgenicaromatase inhibitorestrogenichepatotoxic
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Ketoconazole

Antifungal | Topical Anti-Androgen for Hair Loss

Ketoconazole works through multiple pathways relevant to hair loss. As an azole antifungal, it inhibits the enzyme lanosterol 14-alpha-demethylase, disrupting ergosterol synthesis and killing Malassezia fungi that colonize the scalp and contribute to inflammation and seborrheic dermatitis.

Half-life: Topical application stays local with minimal systemic absorption Typical dose: 1-2% shampoo hair loss
androgenic
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Combined Organ Load

Gonads
moderate
Liver
moderate
Heart
low
Pituitary
low
Skin
low

Shared Safety Flags

2x 2 androgenic compounds (Exemestane, Ketoconazole). Additive androgenic load — increased risk of hair loss, acne, prostate effects.

Frequently Asked Questions

Can I take Exemestane with Ketoconazole?

Yes, but with caution. Both Exemestane and Ketoconazole carry androgenic activity. Additive androgenic load increases risk of acne, hair loss, and prostate effects. Monitor for dose-dependent side effects. Regular monitoring is advised.

Is Exemestane and Ketoconazole safe together?

Based on pharmacological analysis, this combination is considered monitor. However, shared safety flags include: androgenic. Monitor accordingly.

What are the interactions between Exemestane and Ketoconazole?

Both Exemestane and Ketoconazole carry androgenic activity. Additive androgenic load increases risk of acne, hair loss, and prostate effects. Monitor for dose-dependent side effects. This assessment has 60% confidence and is inferred from pharmacological mechanism analysis.

How should I time Exemestane and Ketoconazole?

Exemestane has a half-life of ~24 hours and Ketoconazole has a half-life of Topical application stays local with minimal systemic absorption. No specific timing requirements identified for this combination, but separating administration can help monitor individual effects.

Check this pair in the full Interaction Checker Full comparison: Exemestane vs Ketoconazole

This interaction analysis is compiled from research literature and pharmacological mechanism data. This assessment is inferred from known mechanisms and may not reflect all real-world outcomes. Always consult a healthcare professional before combining compounds.