How long will the drugs work?
The first goal of treatment is to reduce your viral load to undetectable levels. This means less than 50 copies/mL.
As long as your viral load is undetectable you are unlikely to develop drug resistance as long as you keep taking your meds properly. This includes taking them at the right time, not missing doses and following any dietary advice.
Regular monitoring using blood tests will check that the drugs are working and that they continue to work.
How long a combination works depends on not developing resistance.
Around 95% of people whose viral load stays undetectable for the first year, will continue to be undetectable for each following year.
There is no built-in time when treatment will stop working. If you take your meds as they are prescribed, you can use them until we get a cure!