The full name of Coladin Tablets is Coladin Hydrochloride Tablets, which is an alpha agonist, and its pharmacological action is to inhibit peripheral sympathetic nerve activity by directly agonizing the α2 receptor of the central postsynaptic membrane of the hypothalamus and the medulla oblongata, which makes the inhibitory neurons agonized and reduces the efferent central sympathetic impulses. It has the effect of lowering blood pressure, treating migraine, dysmenorrhea, and quitting the symptoms of opioid addiction. Colistin hydrochloride tablets belong to the central antihypertensive drugs, its antihypertensive effect is moderately strong, in the clinic can be used for the treatment of hypertension, especially when the first line of antihypertensive drugs are relatively ineffective, you can choose to take Colistin hydrochloride tablets orally. This drug, if combined with diuretics, will produce a synergistic effect, which may enhance the antihypertensive effect, and is generally used in clinical practice for the treatment of severe hypertension. The common side effects of colistin hydrochloride tablets include dry mouth, drowsiness, constipation, overdose signs may appear postural hypotension, vertigo or syncope, slow heartbeat, etc. Sudden discontinuation of this drug after long-term treatment with this product may result in rebound blood pressure increase, headache, nausea, increased salivation, finger tremors and other symptoms. People who are allergic to colestipol tablets should disable colestipol tablets. Patients should not use the drug blindly and privately, and must follow the doctor’s instructions to take the appropriate dosage of the drug, so as not to cause adverse reactions due to improper use of the drug.