Interaction Checker

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

This stack requires monitoring: 0 interaction(s) need attention. No critical conflicts, but bloodwork and regular check-ins recommended.
Elevated gonads load from Anastrozole, Primobolan. Monitor this organ system closely.
Elevated liver load from Anastrozole, Primobolan. Monitor this organ system closely.

Cumulative Organ Load

Gonads
elevated
Liver
elevated
Heart
moderate
Pituitary
low

Shared Safety Flags

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

Aromatase inhibitors are compatible but typically unnecessary when primobolan makes up a significant portion of the total steroid load, since primobolan itself does not aromatize. AI use is dictated entirely by the testosterone dose in the stack. Some users find they can run higher testosterone doses alongside primobolan without needing an AI compared to testosterone alone, as the overall estrogen-to-androgen ratio remains favorable.

Researched 90% 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.