P.S. the reason for the every 4 hour dosage of DMSA, is to keep the blood levels of DMSA more constant and stable, and thereby the movement and removal of mercury is kept also more stable and safer, instead of being wildly moved about by infrequent dosage.

If a person takes DMSA further apart than 4 hours, they risk once again, redistribution of mercury because once 4-5 hours is up, the levels of DMSA in the blood have dropped, so if you take a dose too spaced apart or infrequent, then you simply redistribute mercury.

So some people who use his regime, if they are taking it and they forget to take a dose and decide to take a "late dose", they can end up in trouble just from doing that. So if someone misses a dose, it is best they stop the round completely, wait a few days before starting again.

Sorry again for being longwinded here! But you see how it's a good idea to give someone as much info as you have learned, so they can see other options and decide what they feel it's a better bet.