Sobredosis is a dramatic word that literally translates to "overdose". It's a powerful choice for a song title that immediately grabs your attention.
In the lyrics, Íñigo Quintero sings about a "sobredosis de emoción" (an overdose of emotion). He uses this intense word metaphorically to describe being completely overwhelmed by his feelings, a sensation so strong it feels like too much to handle. This creates a vivid picture of emotional intensity that is central to the song's meaning.
This song feels like a late-night spiral after a painful breakup. Íñigo Quintero sings about a sudden, harsh return to the real world, saying, "Oigo las sirenas, choco con la realidad" (I hear the sirens, I crash with reality). He remembers a specific moment, a "sobredosis de emoción" (overdose of emotion), and how he used to look at someone completely captivated. Now that person is leaving, and he's left feeling lost and fragile in a city that hurts him.
The whole mood is dark and confused. He sings about danger hiding in the shadows and the difficulty of seeing the truth. The relationship sounds intense and maybe not so healthy; he admits he doesn't know if he should take what this person offers "porque es veneno" (because it's poison). He's avoiding their calls even though he knows it's a "plan fatal" (fatal plan), and worries about his reputation, feeling like he's always on the front pages for the wrong reasons.