Compound Interactions to Watch

Stacking compounds multiplies risk in ways a single-compound curve can’t show. Our plotter flags known interactions as a live warning below the chart. Here are the patterns to watch.

Cardiovascular strain

Combining a β2-agonist like Clenbuterol (Oral) with a PDE5 inhibitor like Tadalafil compounds tachycardia and blood-pressure effects. The plotter shows a yellow interaction warning when both are present.

19-nors and prolactin

Trenbolone and nandrolone (19-nor steroids) can raise prolactin and are commonly managed with cabergoline. Stacking two 19-nors amplifies this risk.

Hepatic load

Stacking multiple oral compounds (e.g., an oral AAS plus an AI or SERM) compounds first-pass hepatic stress. The harm-reduction card on each compound page flags hepatotoxicity severity.

How to use the checker

Add two or more compounds to the plotter. If a known interaction exists, a dismissible yellow banner appears below the chart with rationale. Use it as a prompt to research further, not as clearance.

Compound interaction overview (tadalafil PK) ^[src]