Lower limb arterial occlusion belongs to the category of “gangrene (at first cold and numbness of the limbs, then necrosis of the toe joints, black rot and ulceration, which will not be healed for a long time)” in Chinese medicine. For the treatment of arterial occlusion of lower limb, there are Chinese patent medicines such as Hematopoietic Capsules, Mao Dongqing Tablets, Tongse Vein Tablets, and so on. 1. Hematophagy and Blood Stasis Capsule is composed of Chai Hu, Angelica sinensis, Radix Rehmanniae Praeparata, Radix Paeoniae Lactiflorae, Rhizoma Saffron, Rhizoma Polygonati Odorati, and Citrus Aurantium Branulata. It is used for chest paralysis (chest pain) caused by stagnation of qi and blood stasis, headache for a long time, pain like pins and needles with a fixed place, internal heat and boredom, palpitation and insomnia, irritability. Avoid eating cold and pungent food during the period of taking; prohibited for pregnant women. 2. Maodongqing Tablet, composed of Maodongqing extract. It is used in thromboembolic vasculitis or central retinitis. Contraindicated for pregnant women. 3. Tongxai Pulse Tablets, used for mild to moderate atherosclerotic thrombotic cerebral infarction (ischemic stroke in the meridian) during the recovery period belongs to the evidence of qi deficiency and blood stasis, the symptoms manifested as hemiplegia (one side of the limbs can not be moved at will), hemiplegia, numbness, crooked eyes and mouth, speech is unfavorable, etc.; used for thrombophlebitis (dehiscence) belongs to the evidence of poisonous heat. Thrombophlebitis belongs to yin and cold evidence should be used with caution. The above drugs need to be used under the guidance of a doctor.