Eh, venofer injection tu memang varies depending on the dose and your body's response lah! Since semalam test dose je, the actual treatment sessions boleh jadi 30 minit to a few hours, depending on berapa banyak iron you kena inject and how fast they can administer it. Best thing is ask your doctor or nurse directly berapa lama next appointment, sebab setiap orang different and they'll have your specific schedule already, don't worry, they'll definitely tell you!