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": Dutasteride + Finasteride. Review these interactions carefully.

Cumulative Organ Load

Skin
low

Shared Safety Flags

2x 2 estrogenic compounds (Dutasteride, Finasteride). Combined estrogen elevation — monitor E2 and consider aromatase inhibitor.
2x 2 hepatotoxic compounds (Dutasteride, Finasteride). Liver damage risk significantly increased. Include liver support (TUDCA/NAC) and monitor ALT/AST.
2x 2 compounds share the teratogenic safety flag (Dutasteride, Finasteride). Monitor accordingly.
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Dutasteride + Finasteride
Avoid

Both are 5-alpha reductase inhibitors. Dutasteride already blocks both Type I and Type II isoforms, making the addition of finasteride entirely redundant. Combining them provides no additional benefit and unnecessarily increases the risk of side effects from excessive DHT suppression.

Researched 95% 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.