Does Zestril (lisinopril) cause side effects?
Zestril (lisinopril) is an angiotensin converting enzyme (ACE) inhibitor used to treat high blood pressure (hypertension), heart failure and to prevent kidney failure due to high blood pressure and diabetes.
ACE is important because it is an enzyme responsible for producing the chemical, angiotensin II. Angiotensin II causes muscles in most arteries, including the arteries of the heart, to contract, thereby narrowing the arteries and elevating blood pressure.
ACE inhibitors such as Zestril lower blood pressure by reducing the production of angiotensin II, thereby relaxing arterial muscle and enlarging arteries.
When the blood pressure is lower, the heart does not have to work as hard to pump blood. The arteries supplying the heart with blood also enlarge during treatment with ACE inhibitors.
This increases the flow of blood and oxygen to the heart, further improving the ability of the heart to pump blood. The effects of ACE inhibitors are particularly beneficial to people with congestive heart failure.
In the kidneys, the narrowing of the arteries by angiotensin II decreases blood flow and damages the kidneys. ACE inhibitors enlarge and reduce the blood pressure in the arteries going to the kidney. This reduces damage to the kidneys caused by the high blood pressure.
Common side effects of Zestril include
- dizziness due to a drop in blood pressure,
- nonproductive cough,
- nasal congestion, and
- sexual dysfunction.
Serious side effects of Zestril rarely include a decrease in
Zestril should be stopped if there are symptoms or signs of an allergic reaction including
- feelings of swelling of the face, lips, tongue or throat.
Drug interactions of Zestril include potassium supplements or diuretics that conserve potassium, for example, hydrochlorothiazide/triamterene, since blood potassium levels may rise to dangerous levels.
There have been reports of increased lithium levels when lithium is used in combination with ACE inhibitors.
Nitritoid reactions (symptoms of facial flushing, nausea, vomiting and hypotension) may occur when injectable gold sodium aurothiomalate used in the treatment of rheumatoid arthritis, is combined with ACE inhibitors, including Zestril.
Zestril should not be taken during pregnancy because fetuses and neonates have died when Zestril was administered during pregnancy.
What are the important side effects of Zestril (lisinopril)?
First doses of lisinopril can cause dizziness due to a drop in blood pressure.
This drug also can cause:
Like all ACE inhibitors, lisinopril may cause a nonproductive cough that resolves when the drug is discontinued.
Lisinopril should be stopped if there are symptoms or signs of an allergic reaction including feelings of swelling of the face, lips, tongue or throat. Severe allergic reactions (anaphylaxis) and hives occasionally occur.
Why does lisinpril cause a cough?
Like all ACE inhibitors, lisinopril may cause a nonproductive cough that resolves when the drug is discontinued.
Zestril (lisinopril) side effects list for healthcare professionals
Clinical Trials Experience
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical studies of another drug and may not reflect the rates observed in practice.
In clinical trials in patients with hypertension treated with Zestril, 5.7% of patients on Zestril discontinued with adverse reactions.
The following adverse reactions (events 2% greater on Zestril than on placebo) were observed with Zestril alone:
- headache (by 3.8%),
- dizziness (by 3.5%),
- cough (by 2.5%).
In patients with systolic heart failure treated with Zestril for up to four years, 11% discontinued therapy with adverse reactions. In controlled studies in patients with heart failure, therapy was discontinued in 8.1% of patients treated with Zestril for 12 weeks, compared to 7.7% of patients treated with placebo for 12 weeks.
The following adverse reactions (events 2% greater on Zestril than on placebo) were observed with Zestril:
In the two-dose ATLAS trial in heart failure patients, withdrawals due to adverse reactions were not different between the low and high groups, either in total number of discontinuation (17-18%) or in rare specific reactions ( < 1%). The following adverse reactions, mostly related to ACE inhibition, were reported more commonly in the high dose group:
Table 1 : Dose-related Adverse Drug Reactions : ATLAS trial
Acute Myocardial Infarction
Patients treated with Zestril had a higher incidence of hypotension (by 5.3%) and renal dysfunction (by 1.3%) compared with patients not taking Zestril.
Other clinical adverse reactions occurring in 1% or higher of patients with hypertension or heart failure treated with Zestril in controlled clinical trials and do not appear in other sections of labeling are listed below:
Body as a whole: Fatigue, asthenia, orthostatic effects.
Endocrine: Diabetes mellitus, inappropriate antidiuretic hormone secretion.
Miscellaneous: A symptom complex has been reported which may include a positive ANA, an elevated erythrocyte sedimentation rate, arthralgia/arthritis, myalgia, fever, vasculitis, eosinophilia, leukocytosis, paresthesia and vertigo. Rash, photosensitivity or other dermatological manifestations may occur alone or in combination with these symptoms.
Clinical Laboratory Test Findings
Serum Potassium: In clinical trials hyperkalemia (serum potassium greater than 5.7 mEq/L) occurred in 2.2% and 4.8% of Zestril-treated patients with hypertension and heart failure, respectively.
Creatinine, Blood Urea Nitrogen: Minor increases in blood urea nitrogen and serum creatinine, reversible upon discontinuation of therapy, were observed in about 2% of patients with hypertension treated with Zestril alone. Increases were more common in patients receiving concomitant diuretics and in patients with renal artery stenosis. Reversible minor increases in blood urea nitrogen and serum creatinine were observed in 11.6% of patients with heart failure on concomitant diuretic therapy. Frequently, these abnormalities resolved when the dosage of the diuretic was decreased.
Patients with acute myocardial infarction in the GISSI-3 trial treated with Zestril had a higher (2.4% versus 1.1% in placebo) incidence of renal dysfunction in-hospital and at six weeks (increasing creatinine concentration to over 3 mg/dL or a doubling or more of the baseline serum creatinine concentration).
Hemoglobin and Hematocrit: Small decreases in hemoglobin and hematocrit (mean decreases of approximately 0.4 g% and 1.3 vol%, respectively) occurred frequently in patients treated with Zestril but were rarely of clinical importance in patients without some other cause of anemia. In clinical trials, less than 0.1% of patients discontinued therapy due to anemia.
The following adverse reactions have been identified during post-approval use of Zestril that are not included in other sections of labeling. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
Other reactions include:
Metabolism and Nutrition Disorders
Nervous System and Psychiatric Disorders
Skin and Subcutaneous Tissue Disorders
What drugs interact with Zestril (lisinopril)?
- Initiation of Zestril in patients on diuretics may result in excessive reduction of blood pressure.
- The possibility of hypotensive effects with Zestril can be minimized by either decreasing or discontinuing the diuretic or increasing the salt intake prior to initiation of treatment with Zestril. If this is not possible, reduce the starting dose of Zestril.
- Zestril attenuates potassium loss caused by thiazide-type diuretics. Potassium-sparing diuretics (spironolactone, amiloride, triamterene, and others) can increase the risk of hyperkalemia. Therefore, if concomitant use of such agents is indicated, monitor the patient's serum potassium frequently.
- Concomitant administration of Zestril and antidiabetic medicines (insulins, oral hypoglycemic agents) may cause an increased blood-glucose-lowering effect with risk of hypoglycemia.
Non-Steroidal Anti-Inflammatory Agents Including Selective Cyclooxygenas e-2 Inhibitors (COX-2 Inhibitors )
- In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, coadministration of NSAIDs, including selective COX-2 inhibitors, with ACE inhibitors, including lisinopril, may result in deterioration of renal function, including possible acute renal failure.
- These effects are usually reversible. Monitor renal function periodically in patients receiving lisinopril and NSAID therapy.
- The antihypertensive effect of ACE inhibitors, including lisinopril, may be attenuated by NSAIDs.
Dual Blockade Of The Renin-Angiotensin System (RAS)
- Dual blockade of the RAS with angiotensin receptor blockers, ACE inhibitors, or aliskiren is associated with increased risks of hypotension, hyperkalemia, and changes in renal function (including acute renal failure) compared to monotherapy.
- The VA NEPHRON trial enrolled 1448 patients with type 2 diabetes, elevated urinary-albumin-tocreatinine ratio, and decreased estimated glomerular filtration rate (GFR 30 to 89.9 ml/min), randomized them to lisinopril or placebo on a background of losartan therapy and followed them for a median of 2.2 years.
- Patients receiving the combination of losartan and lisinopril did not obtain any additional benefit compared to monotherapy for the combined endpoint of decline in GFR, end state renal disease, or death, but experienced an increased incidence of hyperkalemia and acute kidney injury compared with the monotherapy group.
- In general, avoid combined use of RAS inhibitors. Closely monitor blood pressure, renal function and electrolytes in patients on Zestril and other agents that affect the RAS.
- Do not co-administer aliskiren with Zestril in patients with diabetes. Avoid use of aliskiren with Zestril in patients with renal impairment (GFR < 60 ml/min).
- Lithium toxicity has been reported in patients receiving lithium concomitantly with drugs, which cause elimination of sodium, including ACE inhibitors.
- Lithium toxicity was usually reversible upon discontinuation of lithium and the ACE inhibitor.
- Monitor serum lithium levels during concurrent use.
- Nitritoid reactions (symptoms include facial flushing, nausea, vomiting and hypotension) have been reported rarely in patients on therapy with injectable gold (sodium aurothiomalate) and concomitant ACE inhibitor therapy including Zestril.
Zestril (lisinopril) is an angiotensin converting enzyme (ACE) inhibitor used to treat high blood pressure (hypertension), heart failure and to prevent kidney failure due to high blood pressure and diabetes. Common side effects of Zestril include dizziness due to a drop in blood pressure, nonproductive cough, nausea, headaches, anxiety, insomnia, drowsiness, nasal congestion, and sexual dysfunction. Zestril should not be taken during pregnancy because fetuses and neonates have died when Zestril was administered during pregnancy. It is unknown if Zestril is excreted in breast milk.
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High Blood Pressure (Hypertension)
High blood pressure (hypertension) is a disease in which pressure within the arteries of the body is elevated. About 75 million people in the US have hypertension (1 in 3 adults), and only half of them are able to manage it. Many people do not know that they have high blood pressure because it often has no has no warning signs or symptoms. Systolic and diastolic are the two readings in which blood pressure is measured. The American College of Cardiology released new guidelines for high blood pressure in 2017. The guidelines now state that blood normal blood pressure is 120/80 mmHg. If either one of those numbers is higher, you have high blood pressure. The American Academy of Cardiology defines high blood pressure slightly differently. The AAC considers 130/80 mm Hg. or greater (either number) stage 1 hypertension. Stage 2 hypertension is considered 140/90 mm Hg. or greater. If you have high blood pressure you are at risk of developing life threatening diseases like stroke and heart attack.REFERENCE: CDC. High Blood Pressure. Updated: Nov 13, 2017.
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Things to Know About High Blood Pressure Treatment
High blood pressure (hypertension) means high pressure (tension) in the arteries. Treatment for high blood pressure include lifestyle modifications (alcohol, smoking, coffee, salt, diet, exercise), drugs and medications such as ACE inhibitors, angiotensin receptor blockers, beta blockers, diuretics, calcium channel blockers (CCBs), alpha blockers, clonidine, minoxidil, and Exforge.
Pulmonary hypertension is elevated pressure in the pulmonary arteries that carry blood from the lungs to the heart. The most common symptoms are fatigue and difficulty breathing. If the condition goes undiagnosed, more severe symptoms may occur. As pulmonary hypertension worsens, some people with the condition have difficulty performing any activities that require physical exertion. While there is no cure for pulmonary hypertension, it can be managed and treated with medications and supplemental oxygen to increase blood oxygen levels.
Portal hypertension is most commonly caused by cirrhosis, a disease that results from scarring of the liver. Other causes of portal hypertension include blood clots in the portal vein, blockages of the veins that carry the blood from the liver to the heart, and a parasitic infection called schistosomiasis. Symptoms of portal hypertension include varices (enlarged veins), vomiting blood, blood in the stool, black and tarry stool, ascites (abnormal fluid collection within the peritoneum, the sac that contains the intestines within the abdominal cavity), confusion and lethargy, splenomegaly or enlargement of the spleen, and decreased white blood cell counts.
What Is High Blood Pressure (Hypertension)?
High blood pressure or hypertension is when the blood pressure readings consistently range from 140 or higher for systolic or 90 or higher for diastolic. Blood pressure readings above 180/120 mmHg are dangerously high and require immediate medical attention.
High Blood Pressure Symptoms
Most people with high blood pressure have no signs or symptoms, even if blood pressure readings reach dangerously high levels. In some patients, symptoms may include fatigue, headaches, dizziness, confusion, sweating, chest pain and vision problems.
Treatment & Diagnosis
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Medications & Supplements
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
Professional side effects and drug interactions sections courtesy of the U.S. Food and Drug Administration.