Well, I was given Propanolol when I was having extremely severe anxiety and it did help lessen my anxiety enough so I could function. After that, it didn't do much so I stopped taking it.

As for Zoloft, it is often used for anxiety and OCD. Sometimes depression does manifest as anxiety, or accompanies anxiety...I cannot tell the difference between my depression and my anxiety; they are intertwined.

My thinking is that the 50mg. wasn't enough to knock out your anxiety, so your doctor increased the Zoloft dose to 100mg. This is where meds always get tricky...is it the Zoloft causing worse anxiety OR is it that the dose of Zoloft isn't high enough to be combating your already-present anxiety?