I only took about 10 of the highest dose(dont remember what the effexor doses are, was like 75 or 150? Might be less cuz i dont remember what doses it comes in).. Nothing really happened because I was forced to the hospital to drink chalk. Paxil did more to me on an OD than effexor did.(my first suicide attempt was on paxil 5 years ago when i was 16)