Generic name: Ramipril.

Altace is an angiotensin-converting enzyme (ACE) inhibitor. It prevents angiotensin I, a blood chemical, from developing into angiotensin II, a stronger form that increases salt and water levels in the body.

Quick Facts About Altace


Used to treat high blood pressure and to treat heart failure after a myocardial infarction

Altace Dosage

Take on an empty stomach, 1 hour before or 2 hours after a meal. Must be taken on a regular basis to be effective. It may take several weeks before any benefit is observed.

  • Usual adult dose: for patients not on diuretics — 2.5 milligrams, taken once daily to start. After blood pressure is under control, dosage ranges from 2.5 to 20 milligrams per day in a single dose or divided into 2 equal doses.
  • Usual child dose: not generally prescribed for children.
  • Missed dose: take as soon as possible, unless almost time for next dose. In that case, do not take missed dose; go back to regular schedule. Do not double doses.

Altace Side Effects

Overdose symptoms:

Primary sign of overdose: sudden drop in blood pressure. If you suspect an overdose, immediately seek medical attention.

More common side effects: cough, headache.

Less common Altace side effects: abdominal pain, angina (chest pain), anxiety, arthritis, bruises, change in taste, constipation, convulsions, depression, diarrhea, difficulty swallowing, dizziness, dry mouth, feinting, fatigue, feeling of general discomfort, fluid retention, hearing loss, heart attack, impotence, inability to sleep, increased salivation, indigestion, inflammation of the stomach and intestines, irregular heartbeat, itching, joint pain or inflammation, labored breathing, light-headedness, loss of appetite, low blood pressure, memory loss, muscle pain, nausea, nerve pain, nervousness, nosebleed, rash, ringing in ears, skin inflammation, skin sensitivity to light sleepiness, sudden loss of strength, sweating, tingling or pins and needles, tremors, vertigo, very rapid heartbeat, vision changes, vomiting, weakness, weight gain.


Inform your doctor before combining Altace with:

diuretics such as Hydrochlorothiazide and furo-semide (Lasix), Lithium, potassium-sparing diuretics (found in Dyazide, Maxzide, Moduretic, and others), Spironolactone (Aldactone), potassium supplements such as K-lyte and K-Tab, potassium-containing salt substitutes.

Alcohol may increase sedative effects; do not drink alcohol when taking this medication. 

Special Cautions

Altace may cause birth defects, premature birth, and fetal and newborn death. If pregnant or planning to become pregnant, inform your doctor immediately. May appear in breast milk; could affect a nursing infant.

Seniors: doctor will vary dosage levels according to individual needs.

Not generally prescribed for children.

  • In the event of chest pain, palpitations, or other heart effects, swelling of the face around the lips, tongue, or throat or difficulty swallowing, difficulty breathing, swelling of arms and legs or infection, sore throat, and fever, immediately contact your doctor.
  • Do not use salt substitutes with potassium without consulting with your doctor.
  • Kidney function assessment should be performed, with continual monitoring when taking Altace.
  • Use with caution if you have: connective tissue disease such as lupus erythematosus or scleroderma; diabetes; or liver disease.
  • Light-headedness may appear during the first days of therapy. If feinting occurs, stop taking Altace and immediately contact your doctor.
  • Dehydration, excessive sweating, severe diarrhea, vomiting could reduce body fluids, or taking high doses of diuretics can cause blood pressure to drop to dangerously low levels.

Note: provides accurate and independent information prescription pills, over-the-counter medicines and natural products. This material is provided for educational purposes only and is not intended for medical advice, diagnosis or treatment. If you have questions about  dosage, or Altace side effects, please contact your healthcare provider.