Fosinopril
/api/v1/drug/fosinoprilBoxed warning
FETAL TOXICITY • When pregnancy is detected, discontinue fosinopril sodium tablets as soon as possible. • Drugs that act directly on the renin-angiotensin system can cause injury and death to the developing fetus. See WARNINGS, Fetal TOXICITY
Mechanism of action
Sourced from openFDAIn animals and humans, fosinopril sodium is hydrolyzed by esterases to the pharmacologically active form, fosinoprilat, a specific competitive inhibitor of angiotensin-converting enzyme (ACE). ACE is a peptidyl dipeptidase that catalyzes the conversion of angiotensin I to the vasoconstrictor substance, angiotensin II.
Indications
Sourced from openFDA- Fosinopril sodium tablets are indicated for the treatment of hypertension. They may be used alone or in combination with thiazide diuretics.ICD-10: I10
Contraindications
Sourced from openFDA- Fosinopril sodium tablets are contraindicated in patients who are hypersensitive to this product or to any other angiotensin-converting enzyme inhibitor (e.g., a patient who has experienced angioedema with any other ACE inhibitor therapy). Do not co-administer fosinopril sodium tablets with aliskiren in patients with diabetes.contraindicated
Dosage & administration
Sourced from openFDAHypertension Adults The recommended initial dose of fosinopril sodium tablets USP is 10 mg once a day, both as monotherapy and when the drug is added to a diuretic. Dosage should then be adjusted according to blood pressure response at peak (2 to 6 hours) and trough (about 24 hours after dosing) blood levels. The usual dosage range needed to maintain a response at trough is 20 to 40 mg but some patients appear to have a further response to 80 mg. In some patients treated with once daily dosing, the antihypertensive effect may diminish toward the end of the dosing interval. If trough response is inadequate, dividing the daily dose should be considered. If blood pressure is not adequately controlled with fosinopril sodium tablets USP alone, a diuretic may be added. Concomitant administration of fosinopril sodium tablets USP with potassium supplements, potassium salt substitutes, or potassium-sparing diuretics can lead to increases of serum potassium (see PRECAUTIONS ). In patients who are currently being treated with a diuretic, symptomatic hypotension occasionally can occur following the initial dose of fosinopril sodium tablets USP. To reduce the likelihood of hypotension, the diuretic should, if possible, be discontinued 2 to 3 days prior to beginning therapy with fosinopril sodium tablets USP (see WARNINGS ). Then, if blood pressure is not controlled with fosinopril sodium tablets USP alone, diuretic therapy should be resumed.
Warnings & precautions
Sourced from openFDAAnaphylactoid and Possibly Related Reactions Presumably because angiotensin-converting enzyme inhibitors affect the metabolism of eicosanoids and polypeptides, including endogenous bradykinin, patients receiving ACE inhibitors (including fosinopril sodium) may be subject to a variety of adverse reactions, some of them serious. Head and Neck Angioedema Angioedema involving the extremities, face, lips, mucous membranes, tongue, glottis, or larynx has been reported in patients treated with ACE inhibitors. If angioedema involves the tongue, glottis, or larynx, airway obstruction may occur and be fatal. If laryngeal stridor or angioedema of the face, lips, mucous membranes, tongue, glottis, or extremities occurs, treatment with fosinopril sodium should be discontinued and appropriate therapy instituted immediately. Where there is involvement of the tongue, glottis, or larynx, likely to cause airway obstruction, appropriate therapy, e.g., subcutaneous epinephrine solution 1:1000 (0.3 mL to 0.5 mL) should be promptly administered (see PRECAUTIONS , Information for Patients and ADVERSE REACTIONS ). Patients taking concomitant mTOR inhibitor (e.g. temsirolimus) therapy may be at increased risk for angioedema. Intestinal Angioedema Intestinal angioedema has been reported in patients treated with ACE inhibitors. These patients presented with abdominal pain (with or without nausea or vomiting); in some cases there was no prior history of facial angioedema and C-1 esterase levels were normal.
Adverse reactions
Sourced from openFDAFosinopril sodium tablets have been evaluated for safety in more than 2100 individuals in hypertension and heart failure trials, including approximately 530 patients treated for a year or more. Generally adverse events were mild and transient, and their frequency was not prominently related to dose within the recommended daily dosage range. Hypertension In placebo-controlled clinical trials (688 fosinopril sodium-treated patients), the usual duration of therapy was 2 to 3 months. Discontinuations due to any clinical or laboratory adverse event were 4.1% and 1.1% in fosinopril sodium-treated and placebo-treated patients, respectively. The most frequent reasons (0.4 to 0.9%) were headache, elevated transaminases, fatigue, cough (see PRECAUTIONS , General , Cough ), diarrhea, and nausea and vomiting. During clinical trials with any fosinopril sodium regimen, the incidence of adverse events in the elderly (≥ 65 years old) was similar to that seen in younger patients. Clinical adverse events probably or possibly related or of uncertain relationship to therapy, occurring in at least 1% of patients treated with fosinopril sodium alone and at least as frequent on fosinopril sodium as on placebo in placebo-controlled clinical trials are shown in the table below.
Pharmacokinetics
Sourced from openFDA- Metabolism
- and Metabolism Following oral administration, fosinopril (the prodrug) is absorbed slowly. The absolute absorption of fosinopril averaged 36% of an oral dose.
Overdosage
Sourced from openFDAOral doses of fosinopril at 2600 mg/kg in rats were associated with significant lethality. Human overdoses of fosinopril have not been reported, but the most common manifestation of human fosinopril overdosage is likely to be hypotension. Laboratory determinations of serum levels of fosinoprilat and its metabolites are not widely available, and such determinations have, in any event, no established role in the management of fosinopril overdose. No data are available to suggest physiological maneuvers (e.g., maneuvers to change the pH of the urine) that might accelerate elimination of fosinopril and its metabolites. Fosinoprilat is poorly removed from the body by both hemodialysis and peritoneal dialysis. Angiotensin II could presumably serve as a specific antagonist-antidote in the setting of fosinopril overdose, but angiotensin II is essentially unavailable outside of scattered research facilities. Because the hypotensive effect of fosinopril is achieved through vasodilation and effective hypovolemia, it is reasonable to treat fosinopril overdose by infusion of normal saline solution.
Approval history
Sourced from openFDA- Apr 23, 2004ANDAANDA076483Chartwell Rx
- Apr 20, 2005ANDAANDA077222Invagen Pharms
- Jul 9, 2009ANDAANDA079245Aurobindo Pharma
- Jul 9, 2009ANDAANDA090228Invagen Pharms
- Mar 30, 2011ANDAANDA091163Aurobindo Pharma Ltd
- Aug 29, 2016ANDAANDA205670Prinston Inc
FAERS reports
- 1Fatigue2445.7%
- 2Diarrhoea2385.5%
- 3Dyspnoea2135.0%
- 4Nausea2084.8%
- 5Drug Ineffective1864.3%
- 6Dizziness1814.2%
- 7Acute Kidney Injury1794.2%
- 8Asthenia1704.0%
- 9Renal Failure1643.8%
- 10Hypotension1453.4%
- 11Headache1443.4%
- 12Pain1433.3%
- 13Vomiting1373.2%
- 14Fall1333.1%
- 15Renal Failure Acute1333.1%
Literature
Recent PubMed references pinned to Fosinopril as a MeSH major topic. Citations link to pubmed.ncbi.nlm.nih.gov.
- Plasma Fibroblast Growth Factor 23 as a Predictor for Fosinopril Therapeutic Efficacy in Pediatric Primary Hypertension.Journal of the American Heart Association · 2022 · Lin Y, Cui Y, Yuan Y, et al.PMID 35322670DOI 10.1161/JAHA.121.023182
- A sensitive and efficient LC-MS/MS method for the bioanalysis of fosinopril diacid from human plasma and its application for a bioequivalence study in humans.Biomedical chromatography : BMC · 2021 · Bhende SD, Varanasi MB, Abbulu K, et al.PMID 33352616DOI 10.1002/bmc.5047
- Perindopril, fosinopril and losartan inhibited the progression of diethylnitrosamine-induced hepatocellular carcinoma in mice via the inactivation of nuclear transcription factor kappa-B.Toxicology letters · 2018 · Saber S, Mahmoud AAA, Goda R, et al.PMID 29859236DOI 10.1016/j.toxlet.2018.05.036
- Intermolecular interaction of fosinopril with bovine serum albumin (BSA): The multi-spectroscopic and computational investigation.Journal of molecular recognition : JMR · 2018 · Zhou KL, Pan DQ, Lou YY, et al.PMID 29659061DOI 10.1002/jmr.2716
- Early Renin-angiotensin System Blockade Improved Short-term and Longterm Renal Outcomes in Systemic Lupus Erythematosus Patients with Antiphospholipid-associated Nephropathy.The Journal of rheumatology · 2018 · Yue C, Li G, Wen Y, et al.PMID 29449503DOI 10.3899/jrheum.170561
- PATHOGENETIC ADVANCES OF FOSINOPRIL SODIUM WITH HYDROCHLOROTHIAZIDE IN OBESE HYPERTENSIVE PATIENTS.Georgian medical news · 2017 · Ashcheulova T, Gerasimchuk N, Rezunenko Y, et al.PMID 29099702
- Comparison of efficacy and safety between benidipine and hydrochlorothiazide in fosinopril-treated hypertensive patients with chronic kidney disease: protocol for a randomised controlled trial.BMJ open · 2017 · Xue C, Zhou C, Yang B, et al.PMID 28237959DOI 10.1136/bmjopen-2016-013672
- Effect of fosinopril on chemerin and VEGF expression in diabetic nephropathy rats.International journal of clinical and experimental pathology · 2015 · Huang H, Hu L, Lin J, et al.PMID 26617877
Clinical trials
The 10 most recently updated of 21 ClinicalTrials.gov registrations naming Fosinopril as an intervention. Registration is not evidence of efficacy or safety — reference crosswalk only.
- Rapid and Simultaneous Initiation of Four Guideline-Directed CKD Therapies (RAPID-CKD)Not yet recruiting · Phase 4 · Interventional · 64 enrolled · Baylor Research InstituteNCT07547878updated 2026-05-08
- Association of Angiotensin-Converting Enzyme Inhibitors and Angiotensin Receptor Blockers With Post-Stroke Pneumonia: A Real-World Retrospective Cohort StudyNot yet recruiting · Observational · 13,656 enrolled · First Teaching Hospital of Tianjin University of Traditional Chinese MedicineNCT07262710updated 2025-12-04
- Effect of Sacubitril/Valsartan on Cardiac Function in Hypertensive Patients Stratified by BMI: A Real World StudyRecruiting · Observational · 180 enrolled · Beijing Friendship HospitalNCT05498675updated 2025-02-13
- Chronic Angiotensin Converting Enzyme Inhibitors in Intermediate Risk SurgeryCompleted · Phase 4 · Interventional · 291 enrolled · University of NebraskaNCT01669434updated 2023-09-25
- NT-proBNP Selected Prevention of Cardiac Events in Diabetic PatientsRecruiting · Phase 4 · Interventional · 2,400 enrolled · Martin HuelsmannNCT02817360updated 2023-03-14
- ACEI or ARB and COVID-19 Severity and Mortality in US VeteransCompleted · Observational · 22,213 enrolled · University of UtahNCT04467931updated 2021-04-28
- Coronavirus (COVID-19) ACEi/ARB InvestigationSuspended · Phase 4 · Interventional · 2,414 enrolled · National University of Ireland, Galway, IrelandNCT04330300updated 2020-06-30
- ACE-Inhibitor Effects on Total Hip and Knee Arthroplasty PatientsTerminated · Interventional · 59 enrolled · Duke UniversityNCT01867047updated 2017-09-28
- Is There an Adverse Drug Reaction Between Renin-Angiotensin System Blockade and Inhaled AnestheticsUnknown · Phase 4 · Interventional · 80 enrolled · London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph'sNCT01715584updated 2017-08-23
- Prevention of Renal and Vascular Endstage Disease Intervention TrialCompleted · Phase 3 · Interventional · 864 enrolled · University Medical Center GroningenNCT03073018updated 2017-03-10
Structural analogs
Ranked by 2D fingerprint (Tanimoto) similarity over PubChem structures. Structural proximity only — not a claim of therapeutic equivalence.
Frequently asked questions
- How does Fosinopril work?
- In animals and humans, fosinopril sodium is hydrolyzed by esterases to the pharmacologically active form, fosinoprilat, a specific competitive inhibitor of angiotensin-converting enzyme (ACE). ACE is a peptidyl dipeptidase that catalyzes the conversion of angiotensin I to the vasoconstrictor substance, angiotensin II.
- What is Fosinopril used for?
- According to FDA labeling, Fosinopril carries indications including: Fosinopril sodium tablets are indicated for the treatment of hypertension. They may be used alone or in combination with thiazide diuretics.. This is a reference summary of labeled uses, not medical advice or a treatment recommendation.
- What class of drug is Fosinopril?
- Fosinopril is classified as ACE inhibitors, plain, Angiotensin Converting Enzyme Inhibitor, Angiotensin-converting Enzyme Inhibitors, Decreased Blood Pressure, Decreased Bradykinin Degradation, Decreased Intravascular Volume, Decreased Mineralocorticoid Secretion, Decreased Renal K+ Excretion, Increased Renal Na+ Excretion, Renal Arterial Vasodilation.
- What are the contraindications for Fosinopril?
- Fosinopril labeling lists contraindications including: Fosinopril sodium tablets are contraindicated in patients who are hypersensitive to this product or to any other angiotensin-converting enzyme inhibitor (e.g., a patient who has experienced angioedema with any other ACE inhibitor therapy). Do not co-administer fosinopril sodium tablets with aliskiren in patients with diabetes.. Always consult the full prescribing information and a clinician.
fosinopril is illustrative MVP content compiled from public sources. pharmacopeia is for educational and informational use only and is not a substitute for professional medical advice.