FM 3 Kit is a combination medicine used in the syndromic management of vaginal discharge. It works by stopping the growth of microorganisms and killing the existing ones that cause the infection. It is advisable to take FM 3 Kit at a fixed time each day to maintain consistent levels of the medicine in the blood. In case you have missed any doses, take it as soon as you remember it. Never skip any doses and finish a full course of treatment even if you feel better. It is important that this medication is not stopped without talking to the doctor as it may worsen your symptoms. It may cause side effects like nausea, headache, vomiting, taste change, dizziness, indigestion, loss of appetite, and stomach pain. It may cause diarrhea, so it is better to take plenty of fluids while taking this medicine as it may help to prevent dehydration. Before you use this medicine, let your doctor know if you have any preexisting medical conditions or if you are taking any other medicines. Let your doctor also know if you have a known allergy to any of the ingredients of this medicine. Pregnant and breastfeeding women should ask the advice of their doctor before using this medicine.