Microspan Infusion is used for short term fluid replacement. Thus, treats hypovolemia that can result due to any surgery, injury, or burns. Microspan Infusion is a large weight molecular substance which remains restricted to the blood vessels and works by producing pressure in the blood which is known as oncotic pressure. This injection must be administered under the supervision of a healthcare professional. You should not take it if you have any known allergy from this injection. Before taking it, inform the doctor you are suffering from any severe heart disease. Your doctor may check your blood pressure and ask you to get regular blood tests done while you are using this injection. The most common side effects include injection site reactions (pain, swelling, redness). Inform your doctor if you are pregnant or breastfeeding or suffering from kidney diseases as a dose adjustment may be required.