Cytarabine, or alisatan ester, is not unsuitable for long-term use. It may be taken for a long period of time if blood pressure is well controlled and no significant side effects occur after taking it. If intolerable adverse reactions occur, or blood pressure control is not good, the medication regimen can be adjusted as prescribed by the doctor. 1. Alisatan ester is a kind of antihypertensive drug, the main ingredient is alisatan ester, which is suitable for the treatment of mild and moderate essential hypertension. 2. The incidence of adverse reactions is low, mainly including: headache, dizziness, elevated blood lipids, elevated transaminases and so on. 3. It is prohibited for those who are allergic to any of the ingredients of this product. It is contraindicated in the middle and end stages of pregnancy and during breastfeeding. 4. If blood pressure is well controlled after taking Alisatanate and no significant side effects are observed, it can be taken for a long period of time. If intolerable adverse effects occur during the course of the medication, or if blood pressure is not well controlled, the medication regimen can be adjusted under the guidance of a specialist. Whether or not Alisatan ester can be taken for a long period of time should be decided by a specialist doctor who will synthesize the patient’s medication effect, adverse reactions, etc. Do not stop the medication or adjust the dosage on your own, so as not to affect the control of blood pressure.