When a person becomes infected with a norovirus, the virus begins to multiply within the small intestine. After approximately 1 to 2 days, norovirus symptoms can begin. This period between the norovirus transmission and the start of symptoms is the  norovirus incubation period ..In some cases, the norovirus incubation period can be as short as 12 hours.his period between the norovirus transmission and the start of symptoms is the  norovirus incubation period .. In some cases, the norovirus incubation period can be as short as 12 hours.
Drug type: Fluorouracil is an anti-cancer (antineoplastic or cytotoxic) chemotherapy drug. Fluorouracil is classified as an antimetabolite.. (For more detail, see How Fluorouracil Works section below). What Fluorouracil Is Used For: 1  Colon and rectal cancer. 2  Breast cancer.
If you are using the fluorouracil cream on your face you may find that the redness and inflammation makes you self conscious and that you do not wish to be seen in public while your face looks like this. The reaction is a sign that the treatment is working.fudix / Fluorouracil. EfudixÂ® is the brand name of a cream that contains fluorouracil. Fluorouracil (5-FU) is a chemotherapy agent that has been used in the treatment of cancer for many decades.