Yes, the use of Wizpride M can lead to lactic acidosis. It is a medical emergency which is caused by increased levels of lactic acid in the blood. It is also known as MALA (Metformin-associated lactic acidosis). It is a rare side effect associated with the use of metformin and therefore, it is considered to be harmful for patients with underlying kidney disease, old age patients or who take large amounts of alcohol. Symptoms of lactic acidosis may include muscle pain or weakness, dizziness, tiredness, feeling of cold in arms and legs, difficulty in breathing, nausea, vomiting, stomach pain or slow heart rate. If you have these symptoms, stop taking Wizpride M and consult your doctor immediately.