Flexital 20mg/1ml Injection is used to treat peripheral vascular disease (poor circulation to the arms and legs) and intermittent claudication (pain on walking or at rest caused by poor circulation to the legs). It works by increasing the blood flow to the arms and legs. Flexital 20mg/1ml Injection is administered under the supervision of a doctor. Your doctor will decide the dose and duration of the medicine for you. You should continue all your other medicines that are advised by the doctor for your long-term treatment even after this injection. Common side effects of this medicine include nausea, vomiting, diarrhea, headache, flushing (sense of warmth in the face, ears, neck, and trunk), and weakness. Consult your doctor if these effects bother you. This medicine is used with caution for some people. Thus, you must inform the doctor if you are suffering from any liver or kidney disease. Also, let your doctor know if you are pregnant or breastfeeding and about all the other medications that you are taking regularly.