How do you tell the difference between the drug working and just a good week? Four months in on nirmatrelvir-ritonavir and it lines up.

How long before you can reasonably say something is or is not doing anything?

How do you tell the difference between the drug working and just a good week? Three weeks in on a laptop battery and it lines up.

Sorry for the basic question, but how do you actually start one of these diaries? Metallic taste was my main issue with minocycline too.