Therapeutic Classification: antihypertensives
Pharmacologic Classification: ace inhibitors
 
Absorption: 25% absorbed following oral administration (much inter-individual variability).
Distribution: Crosses the placenta; may enter breast milk.
Metabolism/Excretion: 100% eliminated by the kidneys.
Half-Life: 12 hr (↑ in renal impairment).
 
Contraindicated in: 
- Hypersensitivity; 
 - History of angioedema with previous use of ACE inhibitors; 
 - Concurrent use with sacubitril/valsartan; must be a 36hr washout period after switching to/from sacubitril/valsartan;
 - OB: Pregnancy;
 - Lactation: Lactation.
 
Use Cautiously in: 
- Renal impairment, hypovolemia, hyponatremia, or concurrent diuretic therapy (initial dosage ↓ recommended); 
 - Black patients (less effective as monotherapy in hypertension; may require additional therapy; higher risk of angioedema); 
 - Surgery/anesthesia (hypotension may be exaggerated); 
 - Rep: Women of reproductive potential; 
 - Pedi: Children <6 yr (safety and effectiveness not established); 
 - Geri: Initial dosage ↓ recommended in older adults.
 
Exercise Extreme Caution in: 
- Family history of angioedema.
 
 

Hypertension
- PO (Adults ): 10 mg once daily, can be ↑ up to 2040 mg/day (initiate therapy at 5 mg/day in patients receiving diuretics).
 - PO (Children ≥6 yr): 0.07 mg/kg once daily (up to 5 mg/day), may be titrated every 12 wk up to 0.6 mg/kg/day (or 40 mg/day).
 
Renal Impairment 
- PO (Adults ): CCr 1030 mL/min: Initiate therapy at 5 mg daily; may be slowly titrated up to 40 mg/day.CCr <10 mL/min: Initiate therapy at 2.5 mg once daily; may be slowly titrated up to 40 mg/day.
 
Renal Impairment 
- (Children ≥6 yr): CCr <30 mL/min: Contraindicated.
 
Heart Failure
- PO (Adults ): 5 mg once daily, may be titrated every 2 wk up to 40 mg/day; initiate therapy at 2.5 mg once daily in patients with hyponatremia (serum sodium <130 mEq/L).
 
Renal Impairment 
- (Adults ): CCr ≤30 mL/min: Initiate therapy at 2.5 mg once daily.
 
Acute Myocardial Infarction
- PO (Adults ): 5 mg once daily for 2 days, then 10 mg daily.
 
Renal Impairment 
- PO (Adults ): Initiate with caution in patients with serum creatinine >2 mg/dL.