Ramipril
Brand names: Tritace
Ramipril is an angiotensin-converting enzyme (ACE) inhibitor used to treat hypertension, heart failure, diabetic and non-diabetic nephropathy, and for cardiovascular risk reduction in patients with established vascular disease.
Adult dose
Dose adjustments
Daily dose should be based on creatinine clearance: CrCl >= 60 ml/min — no adjustment of the initial dose (2.5 mg/day), maximum daily dose 10 mg; CrCl 30-60 ml/min — no adjustment of the initial dose (2.5 mg/day), maximum daily dose 5 mg; CrCl 10-30 ml/min — initial dose 1.25 mg/day, maximum daily dose 5 mg; haemodialysed hypertensive patients — ramipril is slightly dialysable, initial dose 1.25 mg/day and maximum daily dose 5 mg, administered a few hours after haemodialysis.
Dose auto-extracted from UK Summary of Product Characteristics (SPC) via the eMC; US FDA prescribing information (openFDA / DailyMed) — cross-check; US labelling may differ from UK — not yet clinician-verified. Always confirm against the product SmPC and your local formulary before prescribing.
Contraindications
- Hypersensitivity to the active substance, to any of the excipients, or to any other ACE inhibitor
- History of angioedema (hereditary, idiopathic, or due to previous angioedema with ACE inhibitors or AIIRAs)
- Concomitant use with sacubitril/valsartan therapy
- Extracorporeal treatments leading to contact of blood with negatively charged surfaces
- Significant bilateral renal artery stenosis, or renal artery stenosis in a single functioning kidney
- Second and third trimesters of pregnancy
- Hypotensive or haemodynamically unstable states
- Concomitant use with aliskiren-containing products in patients with diabetes mellitus or renal impairment (GFR < 60 ml/min/1.73 m2)
Side effects
- Non-productive tickling cough, bronchitis, sinusitis, dyspnoea (common)
- Headache, dizziness (common)
- Hypotension, orthostatic blood pressure decreased, syncope (common)
- Blood potassium increased (common)
- Gastrointestinal inflammation, digestive disturbances, abdominal discomfort, dyspepsia, diarrhoea, nausea, vomiting (common)
- Serious reactions include angioedema, hyperkalaemia, renal or hepatic impairment, pancreatitis, severe skin reactions and neutropenia/agranulocytosis
Interactions
- Sacubitril/valsartan — concomitant use is contraindicated (§4.3)
- Aliskiren-containing products — contraindicated in patients with diabetes mellitus or renal impairment (GFR < 60 ml/min/1.73 m2); dual RAAS blockade with ACE inhibitors, angiotensin II receptor blockers or aliskiren is otherwise not recommended because of increased risk of hypotension, hyperkalaemia and decreased renal function (§4.3, §4.4)
- Angiotensin II receptor blockers — should not be used concomitantly with an ACE inhibitor in patients with diabetic nephropathy (§4.4)
- Diuretics — hypotension may occur on initiation; if possible discontinue the diuretic 2 to 3 days before starting ramipril, otherwise start at 1.25 mg (§4.2, §4.4)
- Extracorporeal treatments leading to contact of blood with negatively charged surfaces — contraindicated (§4.3). Note: eMC §4.5 was not captured in the fetched source bundle; the full interactions section must be checked on the SPC.
Clinical monograph
How it works
It inhibits ACE, reducing the conversion of angiotensin I to angiotensin II, thereby causing vasodilatation, lowering aldosterone and reducing blood pressure and cardiac afterload.
Prescribing in practice
- Angioedema is an uncommon but potentially life-threatening reaction that mandates immediate, permanent discontinuation, and the drug is contraindicated in pregnancy.
- Check renal function and potassium before starting and after dose changes, as it can cause hyperkalaemia and acute kidney injury, particularly with NSAIDs, potassium-sparing agents or renal artery stenosis.
- Counsel on the common dry cough and the risk of first-dose hypotension, especially in volume-depleted patients or those on diuretics.
Monitoring
Monitor blood pressure, renal function and serum potassium before initiation and after each dose increase, and periodically thereafter.
Counselling the patient
- A persistent dry cough can occur; tell your doctor if it troubles you.
- Do not use this medicine if you are or might become pregnant.
- Report any swelling of the face, lips or throat immediately.
Evidence & guidelines
Ramipril's cardiovascular benefit is supported by the HOPE trial and it is recommended in NICE hypertension and heart failure guidance.
Reference: NICE NG136 (Hypertension); HOPE Trial (NEJM 2000); MHRA Safety Update; Drug verified in RxNorm (NLM); confirm dosing against the manufacturer SPC (eMC). Verify against your local formulary and current prescribing references before prescribing. The structured dose values shown have been reviewed by a clinician. Monograph status: clinician-reviewed (2026-07-04).
Related
Curated clinical cross-links plus same-class fallbacks.
- SMART Risk Score for Recurrent CVD · Cardiovascular Risk
- PCSK9 Inhibitor Eligibility Assessment · Lipid Management
- Immune-Related Adverse Events (irAE) -- GI Toxicity Colitis Grading · Oncology-Related GI
- irAE Hepatitis Grading (CTCAE) · Immunotherapy
- DIPSS — Dynamic International Prognostic Scoring System for Myelofibrosis · Cancer Prognosis
- BALL Score for Relapsed/Refractory CLL · Leukaemia