Alcohol consumption and a reaction with the medication Tagamet can increase the chances for lactic acidosis to develop. Other symptoms include shallow breathing, diarrhea and extreme weakness and fatigue. The usual side effects include nausea, abdominal bloating, flatulence, vomiting, diarrhoea/constipation, heartburn, headache, agitation, chills, dizziness. Metformin can lower the effect of the injection used in PET scans, making it more difficult for your healthcare provider to read the scans. When taking metformin and Ranexa 1,000 milligrams twice daily, do not use more than 1,700 milligrams of metformin per day. Symptoms of lactic acidosis include slow heartbeat, or bradycardia, and low blood pressure, or hypoptension. It increases the levels of and the side effects of metformin. It can occur when metformin levels build up and cannot be cleared from the body 1. What are some other side effects of this drug Stomach pain or heartburn. Lactic acidosis-which can be fatal-is a condition in which there is too much lactate in the blood, which lowers the pH. Metformin is shorter-acting than French lilac and can in rare cases produce the same toxic reaction, called lactic acidosis 1. Lactic AcidosisДЄccording to, the chemical structure of metformin resembles that of the French lilac plant, which was used long ago to lower blood sugar but found to be too toxic 1 2. Metformin usually does not cause hypoglycemia however, low. If you are experiencing serious medical symptoms, seek emergency treatment immediately. Nausea, vomiting, stomach upset, diarrhea, weakness, or a metallic taste in the mouth may occur.

Side effect of metformin