This is not safe at all... Co-codamol preparations of 30/500mg contain 30mg codeine and 500mg paracetamol.
10g of paracetamol in a day can cause liver failure and even death. The FDA in the USA finally lowered the maximum daily dosage of paracetamol (acetaminophen, APAP; marketed as Tylenol) from 4000mg a day in 1000mg doses to 2600mg a day in 650mg doses, but it's not recommended to take that much paracetamol for any extended periods of time. Other than elevated liver enzymes, it can cause serious tinnitus and other long-lasting side effects even at normal dosages. They even went so far as to limit single-dose preparations of opioid analgesics to having no more than 325mg of APAP, and it was about time considering how many people like you just pop a bunch of weak opiate pills and don't realize the damage they are doing to their livers and auditory nerves.
Either seriously look into doing cold water extractions (CWE) to remove as much of the paracetamol as possible, or face the consequences. If you are feeling ill, get yourself to the emergency room ASAP, they can administer some NAC to hopefully help mitigate some of the effects of a paracetamol overdose.