Herceptin dosage

[sandylate]

Hi everyone

My first post and question

Does Herceptin dosage have to be increased when you gain weight. Dosage is calculated according to your weight. What happens when you gradually gain about 7 kg ( 14 pounds) in 12 months of treatment.

Appreciate your help

Sandy

[Lauriesh]

They usually adjust it after 10% gain or loss of weight. At least that is what I was told . I have been losing weight and the dr commented that because I had lost over 10%, they were going to lower it.

[sandylate]

Hi Thank you Lauriesh. Very helpful answer.

[KathyT]

Yes, it is weight based....although mine never got adjusted with my weight gain after chemo(when I was receiving it alone) which I am not happy about!! Although my weight went from 52kg to 56kg, not a 10% change.....it still makes me mad that when I had gained weight I didn't get more of the drug like I should have.

Best of luck!