Timing and frequency of chemotherapy sessions. Chemotherapy for breast cancer is given in cycles. The cycle for chemotherapy can vary from once a week to once every three weeks.Typically, you'll undergo chemotherapy treatments for three to four months, but your doctor will adjust the timing to your circumstances.If you have advanced breast cancer, treatment may continue beyond six months.iming and frequency of chemotherapy sessions. Chemotherapy for breast cancer is given in cycles. The cycle for chemotherapy can vary from once a week to once every three weeks.
A gallbladder attack can last from one hour to five hours or even up to eight hours, and then it goes away on its own. The attack indicates that the gallbladder is not functioning normally and that something is wrong.
So How long does a heart attack last? It is different from one person to the other in terms of symptoms. Normally the warning signs of a heart attack could last from 15-20 minutes to several hours and the only way to make sure that it is a heart attack is to get tested.he condition called the Heart attack takes place when the adequate amount of oxygen is not received by the muscles of the heart. How long does a heart attack last depends on the following: to function well the heart muscles are in constant need of oxygenated blood.