Intro and verses: on guitar, you can try to simulate the piano riff by strumming 
one (or little arpeggio) 
on the riff Csus9 (x3203x) C (x32010) Csus4/F (x32011) C (x32010).
Otherwise simply play C (that's what the guitar does in the acoustic version, from verse 3) and,
from verse 2, you can add a little G* (3200xx) on  at the end of each line.

Intro: Csus9 C Csus4/F C      x2

C (C riff)
Love is a drug and you are my cigarette
Love is addiction and you are my Nicorette
Love is a drug like chocolate like cigarettes
I'm feeling sick, I've got to medicate myself

(Repeat intro)

C(riff) (x32010@1)                     (G)      
I want your love don't try to stop me,
Can't get enough, still hanging on me
Your guilty heart don't let it break you
And if you pray well no one's gonna save you

C (x32010@1)                    G (320003@1)                          AmLike (x02210@1)everyone that you fear and everything you hold dear
                      FEven (133211@1)the book in your pocket
Am (x02210@1)                    F (133211@1)                          DmYou (xx0231@1)are the sun and the light, you are the freedom I fight
                       GGod (320003@1)will do nothing to stop it
              CG AmF                      CG AmF
The origin is you,     You're the origin of love

Love is a drug and you are my cigarette
Love is addiction and you are my Nicorette
Love is a drug like chocolate like cigarettes
I'm feeling sick, I've got to medicate myself

Well if God is a priest and the devil a slut
Now there's a reason for loving
Like every word that you preach, like every word that you teach
With every rule that you breach
                       C (x32010@1)                 G (320003@1)                    AmYou (x02210@1)know the origin is you, from the air I breathe, to the love I need,
             F (133211@1)                          COnly (x32010@1)thing I know is you're the origin of love
             G (320003@1)                AmFrom (x02210@1)the God above to the one I love
                  F (133211@1)                 COnly (x32010@1)thing that's true, the origin is you
From the air I breathe, to the love I need,
Only thing I know is you're the origin of love
From the God above to the one I love,
only thing that's true, the origin is you

C (x32010@1)                   F (133211@1)       C (x32010@1)               FPadre (133211@1)nostrum, deus machismo, Madre deuis, deus machismo
Dm (xx0231@1)               G (320003@1)       Dm (xx0231@1)      GDio (320003@1)de madre, deus machismo, Deus esso sancto spirito

Like stupid Adam and Eve they found their love in a tree
God didn't think they deserved it
He taught them hate, taught them pride, gave them a leaf, made them hide
Let's push their stories aside

You know the origin is you, from the air I...

C (x32010@1)                     GSome (320003@1)love's a pill and some love is a candy cane
Am (x02210@1)                   FIt (133211@1)tastes so sweet but leaves you feeling sick with pain
C (x32010@1)                 GYour (320003@1)love is air, I breathe it in around me
Dm (xx0231@1)                      DmDon't (xx0231@1)know it's there but without it I'm drowning

Love, you're the origin of love (aaah. Eh-o, Eh-o ah. You're the origin of love 
love love, love you're the origin of love love love...)
Thank God that you found me, Thank God that you found me, Thank God you found me