How do you tell the difference between the drug working and just a good week?

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

How do you get a clear photo of an imprint? Mine keep coming out blurry. Three years in on a small yellow tablet and it lines up.

Stupid question: how do you know whether what is in the vial matches the label at all?

Is a baseline blood test really necessary before starting something like this?

Following this because I am in the same place and have no idea what to ask at the appointment.