If you can't work out the picking pattern then just pick the bass and strum the chord :)

Am   x02210
Am/G 302210
Am/F 102210 <-- I'd recommend using the thumb to fret the bass note here
E    022100
C    x30210
F    133211
G    320001

Am             Am/G        Am/F    E 
Did you hear a story about Cocaine Lil?
Am                Am/G     Am/F    E 
She had a cocaine house on cocaine hill
Am                Am/G      Am/F    E 
She had a cocaine dog and a cocaine cat
Am       Am/G  Am/F    E 
She even had a cocaine rat
Am       Am/G Am/F     E       Am Am/G Am/F E 
And it's all  round my brain


C
Been walking round 10th Street and Main
F
I've been looking for a girlie to give me cocaine
C         G                     C
Cocaine's sure running round my brain

C
Been strolling round 10th Street and Main
F
Been looking for someone to give me cocaine
C         G                     C
Cocaine's sure running round my brain

Am            Am/G     Am/F    E 
Well, Cocaine Lil and Morphine Sue
Am           Am/G               Am/F          E  
They've been strolling down the avenue two by two
Am          Am/G        Am/F        E 
Says Lil to Sue, ''It's gonna do no harm
Am                Am/G       Am/F        E 
If we both have a little old shot in the arm''
Am       Am/G Am/F     E                  Am Am/G Am/F E 
And it's all  round my veins, oh cocaine

C
Doctor tell me again and again
F
He say, ''Cocaine's forces ain't for men''
C         G                     C
Cocaine's sure running round my brain

C
You know the doctor tell me, tell me again and again
F
He say, ''Cocaine'll kill you son, it won't say when''
C         G                     C
Cocaine's sure running round my brain

Am             Am/G        Am/F    E 
Did you hear a story about Cocaine Lil?
Am                Am/G     Am/F    E 
She had a cocaine house on cocaine hill
Am                Am/G      Am/F    E 
She had a cocaine dog and a cocaine cat
Am       Am/G  Am/F    E 
She even had a cocaine rat
Am       Am/G Am/F     E       Am Am/G Am/F E 
And it's all  round my brain


C
Yonder's baby, she's dressed in white
F
I said, ''Hey now mama, gonna stay all night''
C         G                     C
Cocaine's sure running round my brain

C
Now there runs my baby, she's all dressed in black
F
You said you know I didn't mean it, won't you please come back
C         G                     C
Cocaine's sure running round my brain

E
Hey baby, please come quick
F
This old cocaine's making me sick
C         G            C
Cocaine's sure running round my brain