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.
If the MRI test is ordered by a surgeon or a specialist, then there are many chances that the results for the MRI test would also be interpreted by those doctors or surgeons who ordered for the MRI test or for the MRI scan. How long does it take to get MRI results also depends on how soon are the results required.It is possible that the patient is in a critical condition and the doctor requires an urgent MRI.ow long does it take to get MRI results also depends on how soon are the results required. It is possible that the patient is in a critical condition and the doctor requires an urgent MRI.