Okay, just realised you are genotype 2b and the data I was thinking of is for 3a.
Im not a Dr but assuming your specialist is a hepatologist then he is presumably up to date and knows your history particularly regarding your cirrhosis and the best option for you and your health. However, he appears not to have convinced you of the veracity of his information. If it was me, I would be telling him that he needs to show me the data that is causing him to change his mind at this stage of my recommended treatment and convince me as to why I should now change that treatment. After all it would be my health and wellbeing that was effected by his sudden change.
It appears you have about two weeks of the current script left? Are you already in receipt of the second script?