Interaction Checker

Add peptides or compounds to check all pairwise interactions, cumulative organ load, and safety flags.

This stack has significant risks: 1 interaction(s) to avoid and 1 critical warning(s). Review carefully before proceeding.
1 combination(s) marked "avoid": Letrozole + LGD-4033. Review these interactions carefully.
Elevated gonads load from Letrozole, LGD-4033. Monitor this organ system closely.
Elevated liver load from Letrozole, LGD-4033. Monitor this organ system closely.

Cumulative Organ Load

Gonads
elevated
Liver
elevated
Heart
moderate
Pituitary
low

Shared Safety Flags

2x 2 androgenic compounds (Letrozole, LGD-4033). Additive androgenic load — increased risk of hair loss, acne, prostate effects.
2x 2 hepatotoxic compounds (Letrozole, LGD-4033). Liver damage risk significantly increased. Include liver support (TUDCA/NAC) and monitor ALT/AST.
2x 2 HPTA-suppressive compounds (Letrozole, LGD-4033). Deep hormonal shutdown expected — plan extended PCT.
2x 2 compounds disrupt lipids (Letrozole, LGD-4033). Get lipid panel mid-cycle — consider adding lipid support.
2x 2 compounds share the teratogenic safety flag (Letrozole, LGD-4033). Monitor accordingly.
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Letrozole + LGD-4033
Avoid

Both Letrozole and LGD-4033 carry hepatotoxic risk. Combining hepatotoxic compounds significantly increases liver damage potential. If unavoidable, include liver support (TUDCA/NAC) and monitor ALT/AST frequently.

Mechanism-based 64% confidence Compare

Interaction data is compiled from research literature, pharmacological analysis, and community reports. Inferred interactions are based on known mechanisms and may not reflect all real-world outcomes. Always consult a healthcare professional before combining compounds.