Envenenado literally means "poisoned." It's a strong and dramatic word that immediately grabs attention, as it's not commonly used in everyday romantic contexts.
In this song, Eros Ramazzotti uses it metaphorically to express how deeply he is still affected by his past love. He sings, "Aún estoy envenenado de ti" (I am still poisoned by you), conveying that her memory and influence are so potent they feel like a poison, consuming his thoughts and emotions. This intense imagery makes the word particularly memorable and enticing.
Eros Ramazzotti's "Otra Como Tu" is a really heartfelt song about a love that's impossible to replace. He's convinced there's no other woman like her, asking, "¿dónde la encontraría?" [where would I find her?]. He misses everything about her, from her unique expressions that he wouldn't see in another smile to her attentive gaze, even when he was being indifferent. It's clear he's still completely consumed by her, admitting, "Aún estoy envenenado de ti" [I'm still poisoned by you].
He even says, "Si no existe, me la inventaré" [If she doesn't exist, I'll invent her], which shows just how much he's holding onto her memory. He misses her quirks, her "manías" [peculiarities], and her passionate looks. It's a powerful declaration that he can't imagine anyone else filling her shoes, and he's not even going to try. It's a beautiful, if a little obsessive, look at lingering love.