cosmofer ampoules are used to compensate for severe iron deficiency. cosmofer injections effectively regulate iron levels in the body. cosmofer ampoules are considered one of the best options for treating iron deficiency, which causes harmful effects on the body. Common symptoms of iron deficiency include extreme fatigue and exhaustion, general weakness, blurred vision, pale skin, and brittle nails. cosmofer completely eliminates these symptoms by increasing hemoglobin in the blood.