Not necessarily. You can't speak if air travel is being blocked through your vocal chords, which would be the case if you're being strangled.
However, you can still speak if your lungs are filling with fluids from a drug overdose, because the air is still passing your vocal chords but it is not getting absorbed by the lungs into your body because the drugs are melting your lungs.
Fun Fact: if you can't breathe, you can't speak.
Not necessarily. You can't speak if air travel is being blocked through your vocal chords, which would be the case if you're being strangled.
However, you can still speak if your lungs are filling with fluids from a drug overdose, because the air is still passing your vocal chords but it is not getting absorbed by the lungs into your body because the drugs are melting your lungs.