Report Abuse. It's not exactly a substitute but it's antiviral medication that is also used to help heal out breaks of herpes and viruses related to it like shingles. Also some people don't react well to acyclovir so Famvir can be used instead. LINDSEY S Â· 5 years ago.
No MRI takes more than 60 minutes. If doctors do not suggest MRI suggest then it will take 30 minutes to 45 minutes. So the question âHow Long Does an MRI Takeâ depends on the requirements of your doctor. If your radiologist has decided for an MRI of the brain plus further requirements, such as IACs (inner auditory canals), orbits or the CCJ (Cervical Cranial Junction), then the test may take 45 minutes.
How long does the MRI scan take? For most exams, expect to be in the department for a minimum of one hour. We need time to prepare you for your scan, and then take you into the room for the actual exam. For most body cases (exams like liver, pelvis, heart) expect to be in the department for two hours.ow long does the MRI scan take? For most exams, expect to be in the department for a minimum of one hour. We need time to prepare you for your scan, and then take you into the room for the actual exam. For most body cases (exams like liver, pelvis, heart) expect to be in the department for two hours.