Idk about sex. But masterbation, yes. I have the opposite effect when I only have sex and don’t view view porn, or jerk it.
That helps me on or off cycle, but way more off cycle. I think it also weakens my impulse control the more I jerk off, while already having lower impulse control with higher androgen levels.
Unless the specific hormone degrades quickly or was put in a situation where it was forced to degrade, most pharmaceuticals are good for like a decade. I had a bottle of Ax Superdrol like 7 years past It’s expiration I think. Unopened, still worked perfectly from the dude I sold it to.