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Dutasteride and RAD-140 Interaction: Avoid | Peptide Database

Compound Profiles Dutasteride Dual 5-Alpha Reductase Inhibitor | Hair Loss & BPH Dutasteride competitively inhibits both the Type I and Type II isoforms of the enzyme 5-alpha reductase. Type II is the predominant isoform in the prostate and hair follicles, whi

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This guide cannot diagnose a condition or recommend a personal treatment plan. Discuss medical questions with a qualified professional.

Compound Profiles

Dutasteride

Dual 5-Alpha Reductase Inhibitor | Hair Loss & BPH

Dutasteride competitively inhibits both the Type I and Type II isoforms of the enzyme 5-alpha reductase. Type II is the predominant isoform in the prostate and hair follicles, while Type I is found primarily in the skin, sebaceous glands, and liver.

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 Dutasteride with RAD-140?

Combining Dutasteride with RAD-140 is not recommended. Both Dutasteride 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 Dutasteride and RAD-140 safe together?

This combination carries significant risk. Both Dutasteride 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 Dutasteride and RAD-140?

Both Dutasteride 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 Dutasteride and RAD-140?

Dutasteride has a half-life of ~5 weeks (extremely long; active metabolite accumulation over months) 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.

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Research context

Read sources and limitations before applying a claim.

Community Research

Join others researching BAM-15 — share findings, ask questions, and learn from real experiences BAM-15 is a synthetic mitochondrial uncoupler that has emerged as a promising research compound for obesity and metabolic disorders. Unlike traditional uncouplers like DNP which have serious toxicity concerns, BAM-15 demonstrates a superior safety profile while effectively increasing energy expenditure and fat oxidation. Research in mice shows BAM-15 reduces body fat without affecting food intake, lean mass, or body temperature. It is approximately 7-fold more potent than DNP and does not induce the dangerous hyperthermia associated with older uncouplers. Note: BAM-15 is a small molecule compound, not a peptide, but is commonly sold alongside peptide products. BAM-15 targets the inner mitochondrial membrane, enhancing proton permeability and dissipating the proton gradient. This uncouples electron transport from ATP synthesis, forcing mitochondria to increase respiration and burn more substrates (particularly fat) to maintain energy production. BAM-15 activates AMP-activated protein kinase (AMPK) in response to ATP depletion, promoting glucose uptake and fatty acid oxidation. It also activates PGC-1α (peroxisome proliferator-activated receptor gamma coactivator 1-alpha), enhancing mitochondrial biogenesis. Unlike DNP or FCCP, BAM-15 does not depolarize plasma membranes or induce apoptosis at effective concentrations, explaining its improved safety profile.

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Research Indications

Used as a rescue compound when gynecomastia is actively progressing despite other interventions. Letrozole's extreme potency can rapidly suppress the estrogen driving breast tissue growth. Typically used short-term at low doses until the flare subsides, then transitioned to a milder AI or SERM for maintenance. On cycles involving high doses of testosterone or other heavily aromatizing compounds (e.g., testosterone above 750mg/week, or stacked with Dianabol), estrogen production may exceed what anastrozole can manage. Letrozole at conservative doses (0.25mg EOD) can provide the additional suppression needed. The primary challenge with letrozole is avoiding excessive estrogen suppression. Even small dose adjustments can dramatically impact estradiol levels. Requires frequent bloodwork and careful titration -- starting at the lowest effective dose and increasing only if confirmed necessary by labs. FDA-approved as adjuvant therapy and extended adjuvant therapy for hormone receptor-positive breast cancer in postmenopausal women. The BIG 1-98 trial demonstrated superior disease-free survival compared to tamoxifen, establishing letrozole as a first-line AI in oncology. Widely used off-label as a first-line treatment for ovulation induction in women with polycystic ovary syndrome (PCOS) or unexplained infertility. Letrozole has shown superior live birth rates compared to clomiphene citrate in multiple clinical trials. For individuals who aromatize heavily due to genetics, high body fat, or supraphysiological androgen doses, and who do not achieve adequate estrogen control with anastrozole. Letrozole at micro-doses may provide the potency needed, but the margin of error is slim. Short-term use to rapidly bring estradiol into range before transitioning to a less potent AI for ongoing management. This approach uses letrozole's strength while minimizing the risks of prolonged exposure.

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Practical and safety references

These excerpts are educational, not personalised medical instructions.

Dosage reference

Dosing Protocols

Metformin is administered exclusively by the oral route. It is available in immediate-release (IR) tablets taken 2-3 times daily with meals, and extended-release (XR/ER) formulations taken once daily, typically with the evening meal. The extended-release formulation significantly reduces gastrointestinal side effects and improves adherence. Metformin is not metabolized by the liver and is excreted unchanged by the kidneys, making renal function an important consideration for dosing. Type 2 Diabetes - Standard Titration 500 mg, titrate to 1500-2000 mg/day Start 500 mg once or twice daily, increase by 500 mg weekly Oral with meals Longevity / Off-Label Geroprotection 500-1000 mg/day Once or twice daily Prediabetes / Insulin Resistance 500-1500 mg/day PCOS 1500-2000 mg/day Divided 2-3 times daily or once daily (XR)

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Side effects

Common Side Effects

Liver stress and enzyme elevation (ALT, AST) due to 17-alpha alkylated steroidal structure Testosterone suppression (dose- and duration-dependent, expected in all users) Joint dryness and discomfort (related to reduced estrogenic activity and potential drying effect) Hair shedding (consistent with androgenic activity from the DHT-derived structure; may or may not be reversible) Lipid disruption (HDL suppression, LDL elevation) Reduced libido and mood changes secondary to hormonal suppression Mild headaches, particularly during the first week

Source: peptide-db.com ↗
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Peptide Therapy Guide Editorial Team

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