It might be a good idea to go to 12g, which would be 6 bottles ( although the 5 bottles would very likely be fine if getting 6 would be difficult ).
It's not an exact science, but a higher dose is thought to be better ( higher certainty and quicker process ), unless the dose becomes too high which might then increase the vomiting risk (not sure at what dose that would happen ).
Also note, a very small person (eg 125 pounds or less) can probably get away with fewer bottles....
Disclaimer : Please note that I strongly recommend against taking any action that would cause harm to yourself. Please seek assistance in any and every way possible to prevent harm coming to yourself. I do not encourage you or anyone to do anything that would cause harm to yourself or themselves. You alone must decide upon your actions and take full responsibility for them, and you should always favour seeking help and keeping yourself out of harm's way.