I think K is the most common. Looks like stainless steel and machines about the same. These two are the only copper/nickel alloys that are called Monel. There are a lot of other copper/nickel alloys. Monel has more nickel than copper. When the copper content gets higher the color changes toward copper. Probably at least 400 alloys of copper with nickel, aluminum, zinc, tin, magnesium with various names but there are only two that are called Monel as far as I know. 04-28-2008, 03:46 PM #20.
Metformin may cause some side effects, including stomach symptoms such as diarrhea, bloating, stomach pain, gas, indigestion, constipation, and heartburn. Metformin may give you an unpleasant taste in your mouth. Metformin may also cause headaches, make your skin flush, cause changes to your fingernails, and cause muscle pain.
Symptoms of lactic acidosis include weakness, sleepiness, slow heart beat, feeling cold, muscle pain, shortness of breath, loss of consciousness, etc. Although metformin does not directly cause kidney damage, the patients who have kidney damage and or kidney disease should not use the medicine. Another significant complication of metformin is Acute Kidney Failure. Gastrointestinal problems such as, significant diarrhea or vomiting commonly occur in people who are taking metformin therapy when there is underlying chronic kidney disease. It can lead to severe dehydration and acute renal failure.