成分为氯化钙。多产于火山旁及烧过之锻石圹中。
主治。荡积。破瘀止痛。疗积痢喉痹。反胃。
砂丸。 砂一钱。（研）木香沉香巴豆肉各一两。青皮二两。铜青五钱。（研）先以木
香
沉香青皮同巴豆慢火炒令紫色。去巴豆。研为细末。入 砂铜青研匀。蒸饼和丸梧子大。每
服七至十丸。空心食前盐汤下。日二三次。能通气滞。泻症结。
又方。 砂芒硝各一两。当归雄黄桂心各五钱。大黄（炮）三棱各二两。研末。米醋一
碗
熬大黄末为膏。次入余药。和丸梧子大。每服十丸。空腹温酒下。渐加至二十丸。以利下恶
物为度。治妇人疝瘕。及瘀血在脏。腹胁攻痛。
又方。 砂木香各三钱。黑附子二枚。各重五钱以上。正坐妥者。炮制去皮脐。剜作瓮
子。破故纸（隔纸微炒）荜茇各一两。先以 砂研末。水一盏续续化开。纳瓮内。火上熬干。
研末。置附子瓮内。用剜出附子末填盖口上。复和成白面裹之。约半指浓。慢炭火烧至黄色。
去面。同木香等药研为细末。用原裹附子熟黄面为末。醋煮米糊和丸梧子大。每服十五至三
十丸。生姜汤下。治积块 癖。一切凝滞。
砂膏。槐杏桃柳桑。嫩枝各三尺。浸麻油十斤中。三日再入栀子六百个。穿山甲六两。
童子发（盐水洗）四两。慢火煎枯去渣。纳飞黄丹一百两。收成膏。候微温。再入沉香（身
上
熨燥不见火）儿茶各二两。血竭三两。琥珀象皮（切片微炒）各一两。冰片麝香各五钱。
砂
四两。共研极细末。和入膏内搅匀。用时热水炖化。忌火。功用去瘀软坚消肿止痛。治痈疽
发背。对口。痰核瘰 乳疖。流注。无名肿毒。未成能消。已成能溃。
主要成分为氯化钙。多产于火山附近及经过烧制的锻石窑中。
主治功效：消除积滞，破除瘀血并止痛，治疗积痢（久泻痢疾）和喉痹（咽喉肿痛闭塞），以及反胃。
砂丸方：使用砂一钱（研成粉末）。木香、沉香、巴豆肉各一两，青皮二两，铜青五钱（研成粉末）。先将木香、沉香、青皮与巴豆用慢火炒至紫色，去掉巴豆，研成细末。加入砂和铜青研磨均匀，用蒸饼面团调和制成梧桐子大小的丸剂。每次服用七至十丸，空腹或食前用盐汤送服，每日二至三次。此方能通气滞，泻除症结。
又一方：砂、芒硝各一两，当归、雄黄、桂心各五钱，大黄（炮制）、三棱各二两，研成粉末。取一碗米醋熬煮大黄末成膏状，然后加入其余药物，调和制成梧桐子大小的丸剂。每次服用十丸，空腹用温酒送服，逐渐增加至二十丸，以排出体内恶物为度。用于治疗妇人疝瘕（腹部肿块），以及脏腑内的瘀血，导致腹胁部攻冲疼痛。
又一方：砂、木香各三钱，黑附子二枚（每枚重五钱以上，形状端正完好者）。将附子炮制后去皮和脐，挖空做成瓮状。破故纸（补骨脂，隔纸微炒）、荜茇各一两。先将砂研成粉末，加一盏水慢慢化开，倒入附子瓮内。在火上熬干，研成粉末，放入附子瓮中。用挖出的附子粉末覆盖口部，再用白面粉包裹，厚度约半指宽。用慢炭火烧至黄色，去掉面皮，将药与木香等药材一起研成细末。用原来包裹的熟黄面粉作为粘合剂，醋煮米糊调和制成梧桐子大小的丸剂。每次服用十五至三十丸，生姜汤送服。用于治疗积块癖气（腹内结块），一切凝滞之症。
砂膏方：选取槐树、杏树、桃树、柳树、桑树的嫩枝各三尺，浸泡在十斤麻油中，三天后再加入六百个栀子、六两穿山甲、四两童子发（用盐水洗净）。用慢火煎炸至枯焦，去渣。加入一百两飞黄丹，收膏。待膏体微温时，再加入二两沉香（身上熨燥不见火）、二两儿茶、三两血竭、一两琥珀、一两象皮（切片微炒）、五钱冰片、五钱麝香、四两砂。共同研成极细粉末，混入膏内搅匀。使用时用热水炖化，忌用火直接加热。功效为去除瘀血、软化坚块、消肿止痛。用于治疗痈疽、发背、对口疮、痰核、瘰疬、乳疖、流注、无名肿毒等。未成脓者可消散，已成脓者可溃破。
Main component: Calcium chloride. It is mostly produced near volcanoes and in kilns where calcined stone has been burned.
Indications: Eliminates accumulation, breaks up blood stasis and relieves pain, treats chronic dysentery (Ji Li) and throat obstruction (Hou Bi), as well as retrograde vomiting.
Sha Wan Formula: Sha 1 qian (ground). Muxiang, Chenxiang, and Badou meat each 1 liang; Qingpi 2 liang; Tongqing 5 qian (ground). First, stir-fry Muxiang, Chenxiang, Qingpi, and Badou slowly over low heat until purple. Remove the Badou and grind into a fine powder. Add Sha and Tongqing, grind uniformly, mix with steamed dough pills to form pills the size of a wutong seed. Take 7 to 10 pills per dose, administered on an empty stomach or before meals with salt water decoction, two to three times daily. This formula can promote Qi circulation and resolve stagnation.
Another Prescription: Sha and Mangxiao each 1 liang; Danggui, Xionghuang, and Guixin each 5 qian; Dahuang (processed) and Sanleng each 2 liang, ground into powder. Take one bowl of rice vinegar and boil the Dahuang powder into a paste. Then add the remaining medicines, mix, and form pills the size of a wutong seed. Take 10 pills per dose, administered with warm wine on an empty stomach. Gradually increase to 20 pills, stopping when foul matter is discharged. Used to treat women's shan jia (abdominal masses) and blood stasis within the zang organs, causing attacking pain in the abdomen and hypochondrium.
Another Prescription: Sha and Muxiang each 3 qian; Heifuzi 2 pieces (each weighing over 5 qian, regular shape). Process the Fuzi by removing skin and umbilicus, hollowing it out to form a jar-like shape. Gubuzhi (Bulgariae Semen, lightly fried through paper) and Bibo each 1 liang. First, grind Sha into powder, dissolve it in one cup of water gradually, and pour it into the Fuzi jar. Boil on fire until dry, then grind into powder. Place this powder inside the Fuzi jar. Cover the opening with the powder scooped out from the Fuzi itself. Wrap tightly with white flour dough, about half a finger thick. Slowly roast over charcoal until yellow. Remove the dough, and grind together with Muxiang and other herbs into a fine powder. Use the original roasted yellow flour as a binder, mixed with rice paste boiled in vinegar, to form pills the size of a wutong seed. Take 15 to 30 pills per dose, administered with ginger decoction. Treats accumulations and pi masses (subcutaneous nodules), and all types of stagnation.
Sha Gao Formula: Select tender branches of Huai, Xing, Tao, Liu, and Sang trees, each 3 chi long, and soak in 10 jin of sesame oil for three days. Then add 600 Zhizi, 6 liang of Shanchuanjia, and 4 liang of Tongzifa (washed with salt water). Slowly fry until withered, remove dregs. Add 100 liang of Feihuangdan to form the ointment. When slightly warm, add 2 liang of Chenxiang (dried without fire), 2 liang of Ercha, 3 liang of Xuexie, 1 liang of Hupo, 1 liang of Xiangpi (sliced and lightly fried), 5 qian of Bingpian, 5 qian of Shexiang, and 4 liang of Sha. Grind all into an extremely fine powder and mix uniformly into the ointment. To use, melt with hot water; avoid direct fire. Functions: removes blood stasis, softens hardness, reduces swelling, and relieves pain. Treats carbuncles, back sores, duikou ulcers, phlegm nodules, scrofula, breast boils, flowing abscesses, and unnameable swellings. For those not yet suppurated, it can dissipate them; for those already suppurated, it can induce rupture.