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Does Lotensin (benazepril) cause side effects?
Common side effects of Lotensin include:
- drowsiness, and headache as your body adjusts to the medication; and
- dry cough.
Serious side effects of Lotensin include:
- symptoms of a high potassium blood level (such as muscle weakness, slow/irregular heartbeat),
- signs of infection (such as fever, chills, persistent sore throat),
- change in the amount of urine,
- serious (possibly fatal) liver problems (symptoms include yellowing eyes/skin, dark urine, severe stomach/abdominal pain, and persistent nausea/vomiting),
- a very serious allergic reaction (rash, itching/swelling (especially of the face/tongue/throat, severe dizziness, and trouble breathing).
Drug interactions of Lotensin include aliskiren, lithium, and drugs that may increase the level of potassium in the blood (such as angiotensin receptor blockers/ARBs, and birth control pills containing drospirenone).
What are the important side effects of Lotensin (benazepril)?
Benazepril is generally well tolerated and side effects are usually mild and transient.
Side effects include:
- Abdominal pain
- Loss of taste
- Loss of appetite
- Nausea and vomiting
- Easy bruising or bleeding
- Chest pain
- Difficulty breathing
- Severe dizziness
- Numbness or tingling in the hands or feet
- A sore or swollen throat
In rare instances, liver dysfunction and skin yellowing (jaundice) have been reported with ACE inhibitors.
Benazepril should not be taken by people with a known allergy to ACE inhibitors.
Swelling of the facial tissues and even the upper airways has been reported with ACE inhibitors on very rare occasions, and can lead to serious breathing difficulties.
In rare instances, low white blood cell counts have been reported with the use of one ACE inhibitor. Low white blood cells increase the patient's risk of infections.
Lotensin (benazepril) side effects list for healthcare professionals
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.
Lotensin has been evaluated for safety in over 6000 patients with hypertension; over 700 of these patients were treated for at least one year. The overall incidence of reported adverse events was similar in Lotensin and placebo patients.
The reported side effects were generally mild and transient, and there was no relation between side effects and age, duration of therapy, or total dosage within the range of 2 to 80 mg.
Discontinuation of therapy because of a side effect was required in approximately 5% of U.S. patients treated with Lotensin and in 3% of patients treated with placebo.
The most common reasons for discontinuation were
- headache (0.6%) and
- cough (0.5%).
Adverse reactions seen in at least 1% greater frequency in patients treated with Lotensin than placebo were
- headache (6% vs. 4%),
- dizziness (4% vs. 2%),
- somnolence (2% vs. 0%) and
- postural dizziness (2% vs. 0%).
Adverse reactions reported in controlled clinical trials (less than 1% more on benazepril than on placebo), and rarer events seen in post-marketing experience, include the following (in some, a causal relationship to drug use is uncertain):
What drugs interact with Lotensin (benazepril)?
Patients on diuretics, especially those in whom diuretic therapy was recently instituted, may occasionally experience an excessive reduction of blood pressure after initiation of therapy with Lotensin. The possibility of hypotensive effects with Lotensin can be minimized by either discontinuing or decreasing the dose of diuretic prior to initiation of treatment with Lotensin.
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. Lotensin attenuates potassium loss caused by thiazide-type diuretics.
Non-Steroidal Anti-Inflammatory Agents Including Selective Cyclooxygenase-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 benazepril, may result in deterioration of renal function, including possible acute renal failure. These effects are usually reversible. Monitor renal function periodically in patients receiving benazepril and NSAID therapy.
The antihypertensive effect of ACE inhibitors, including benazepril, 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. Most patients receiving the combination of two RAS inhibitors do not obtain any additional benefit compared to monotherapy. In general, avoid combined use of RAS inhibitors. Closely monitor blood pressure, renal function and electrolytes in patients on Lotensin and other agents that affect the RAS.
Do not coadminister aliskiren with Lotensin in patients with diabetes. Avoid use of aliskiren with Lotensin in patients with renal impairment (GFR < 60 mL/min).
Mammalian Target Of Rapamycin (MTOR) Inhibitors
Lithium toxicity has been reported in patients receiving lithium concomitantly with Lotensin. Lithium toxicity was usually reversible upon discontinuation of lithium or Lotensin. Monitor serum lithium levels during concurrent use.
Patients taking concomitant neprilysin inhibitors may be at increased risk for angioedema.
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.
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Related Disease Conditions
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.
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.
Hypertension-Related Kidney Disease
Second Source WebMD Medical Reference
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.
Hypertensive Kidney Disease
High blood pressure can damage the kidneys and is one of the leading causes of kidney failure (end-stage renal kidney disease). Kidney damage, like hypertension, can be unnoticeable and detected only through medical tests. If you have kidney disease, you should control your blood pressure. Other treatment options include prescription medications.
Pseudotumor Cerebri (Idiopathic Intracranial Hypertension)
Pseudotumor Cerebri (intracranial hypertension) is a condition where there is an increase in pressure of fluid surrounding the brain and spinal cord (cerebrospinal fluid or CSF) mimicing a brain tumor. The cause is unknown. The most common symptom is headache but also include eye-pain, vision loss and double vision. Pseudotumor cerebri is diagnosed with MRI or CAT scans and treated by discontinuing offending medications (if applicable), weight loss and diuretic medications. The condition can also be helped by repeated drainage of spinal fluid using the lumbar puncture.
Preeclampsia (Pregnancy Induced Hypertension)
Preeclampsia is related to increased blood pressure and protein in the mother's urine. Preeclampsia typically begins after the 20th week of pregnancy. When preeclampsia causes seizures, it is termed "eclampsia" and is the second leading cause of maternal death of in the US. Preeclampsia is the leading cause of fetal complications. Risk factors for preeclampsia include high blood pressure, obesity, multiple births, and women with preexisting medical conditions such as diabetes, kidney disease, rheumatoid arthritis, lupus, or scleroderma. Pregnancy planning and lifestyle changes may reduce the risk of preeclampsia during pregnancy.
Treatment & Diagnosis
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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.