Educational guide
Letrozole and RAD-140 Interaction: Avoid | Peptide Database
Compound Profiles Letrozole Aromatase Inhibitor | Potent Estrogen Suppression Letrozole competitively and reversibly binds to the heme group of the aromatase enzyme (cytochrome P450 19A1), inhibiting its catalytic activity with greater potency than any other c
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Compound Profiles
Letrozole
Aromatase Inhibitor | Potent Estrogen Suppression
Letrozole competitively and reversibly binds to the heme group of the aromatase enzyme (cytochrome P450 19A1), inhibiting its catalytic activity with greater potency than any other commercially available aromatase inhibitor. Aromatase catalyzes the final step in estrogen biosynthesis, converting testosterone to estradiol and androstenedione to estrone in peripheral tissues including adipose, muscle, liver, and brain.
RAD-140
Selective Androgen Receptor Modulator | Investigational SARM
RAD-140 binds to the androgen receptor (AR) with high affinity and selectivity, functioning as a full agonist in muscle and bone tissue while exhibiting minimal agonist activity in the prostate and other androgen-sensitive tissues. This tissue selectivity is achieved through differential cofactor recruitment: upon binding to the AR, RAD-140 induces a conformational change that favors interaction with coactivators predominantly expressed in skeletal muscle and bone, rather than those prevalent in prostate or sebaceous glands.
Combined Organ Load
Shared Safety Flags
Frequently Asked Questions
Can I take Letrozole with RAD-140?
Combining Letrozole with RAD-140 is not recommended. Both Letrozole and RAD-140 carry hepatotoxic risk. Combining hepatotoxic compounds significantly increases liver damage potential. If unavoidable, include liver support (TUDCA/NAC) and monitor ALT/AST frequently.
Is Letrozole and RAD-140 safe together?
This combination carries significant risk. Both Letrozole and RAD-140 carry hepatotoxic risk. Combining hepatotoxic compounds significantly increases liver damage potential. If unavoidable, include liver support (TUDCA/NAC) and monitor ALT/AST frequently. Consult a healthcare professional before combining.
What are the interactions between Letrozole and RAD-140?
Both Letrozole and RAD-140 carry hepatotoxic risk. Combining hepatotoxic compounds significantly increases liver damage potential. If unavoidable, include liver support (TUDCA/NAC) and monitor ALT/AST frequently. This assessment has 53% confidence and is inferred from pharmacological mechanism analysis.
How should I time Letrozole and RAD-140?
Letrozole has a half-life of ~2 days (48 hours) and RAD-140 has a half-life of ~60 hours. No specific timing requirements identified for this combination, but separating administration can help monitor individual effects.
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.