Volitin is the trade name and its generic name is Lecithin Complex Iodine Tablets. Lecithin-complexed iodine tablets act on the retina to promote its metabolism, and can be used to treat central exudative choroidal retinopathy, central plasma choroidal retinopathy, central retinal vein occlusion, vitreous clouding and hemorrhage, and other diseases. Adverse reactions after the use of the drug is rare, there may be skin rash, gastrointestinal discomfort and other adverse reactions. Elderly patients should reduce the dosage appropriately when using the drug due to reduced physiological function. It is contraindicated in patients with iodine allergy. It should be used with caution in patients with synucleinosis, chronic thyroid disease, and insufficient endogenous thyroxine synthesis. If you need to use the drug, please strictly follow the doctor’s instructions under the guidance of the medication, do not self-medicate arbitrarily.