Meaning of the term "titrate down"?

In medical parlance, titration means reducing dosage (or whatever) in accordance with the patient’s ability to tolerate it.

I work in respiratory therapy, and I often titrate oxygen percentage to a level that will get me a certain oxygen saturation level. For example, if I start someone at 50% O2, I may want to titrate down to 28%, so I will graduallly reduce the flow of oxygen until I achieve that goal, but all the while watching the patient to see if he/she is tolerating the “weaning” or titration.

Does this help?

Quasi