Factors that affect your lisinopril dosage include your age, the condition being treated, and if you have other medical conditions. When treating high blood pressure, the recommended dosage is 10 mg, taken once daily. For congestive heart failure, the starting dose is 5 mg a day. When given following a heart attack, lisinopril dosage guidelines call for 5 mg to start, then another 5 mg in 24 hours, and then 10 mg at 48 hours.
The dose of lisinopril (Zestril®) that your healthcare provider prescribes will vary, depending on a number of factors, including:
- Your age
- The medical condition you are being treated for
- Other medical conditions you may have
- Other medications you are currently taking.
As is always the case, do not adjust your lisinopril dosage unless your healthcare provider specifically instructs you to do so.
If you are over 65 years of age, your healthcare provider may choose to monitor your dosing adjustments more cautiously.
The recommended starting dosage of lisinopril for people with high blood pressure (hypertension) is 10 mg, taken once daily. Based on the blood pressure response and/or side effects of lisinopril, the dosage may be increased or decreased. For most people, the normal daily dose is 20 mg to 40 mg. For each change in your lisinopril dosage, it may take several weeks to see the full effects on blood pressure.
If you have hypertension and are already taking a diuretic, your healthcare provider will most likely tell you to stop taking the diuretic before starting lisinopril. If you cannot stop the diuretic, however, for other medical reasons, your healthcare provider may choose to start you on a lower dose of lisinopril, such as 5 mg, under close medical supervision.
If you have kidney disease or kidney failure, your healthcare provider may start you on a lower dose as well, depending on the severity of your kidney disease. And if you have liver disease or liver failure, your healthcare provider may also start you on a lower dose and monitor you more closely.