CAPTOPRIL

(Capoten)

Standard Prescription

captopril __mg PO__(frequency) (__mg/kg/dose)

Dosages

Neonates: refer to pink pages as doses are different in this age group

Infants and Children:
Initial:
0.1-0.5 mg/kg/dose PO BID-TID. *Titrate dose Q8-24H to a max of 6 mg/kg/24 hr

Adolescents:
Initial: 6.25-12.5 mg/dose PO BIDTID. (Max 6 mg/kg/24 hr or 450 mg/24 hr)

Adults:
12.5-25mg PO TID
Increase weekly if necessary by 25 mg/dose to a max.dose of 450 mg/24 hr

Mechanism of Action

Angiotensin-Converting Enzyme (ACE) inhibitor

Forms Supplied

Tablet:  6.25 mg, 12.5 mg, 25 mg, 50 mg

Suspension
(BCCH): 1 mg/mL

Comments

Reduce dose with impaired renal function.

Ensure adequate hydration; monitor serum creatinine and potassium after starting or increasing dose.

Severe hypotension may occur in patients who are sodium and/or volume depleted; use lower initial doses in these patients

caution in bilateral renal artery stenosis

contraindicated in all stages of pregnancy; discuss contraception with all females of childbearing age.

Onset of hypotensive effect: 15 min.; peak 60-90 min.,duration 6-8 hrs

Dose titration: dose may be increased with each dosing interval; monitor vitals every 30 minutes x 2 after each dose change

37.5 mg of captopril is approximately equivalent to 5 mg of enalapril or 2.5 mg of ramipril

May cause hyperkalemia; caution with potassium supplements and sparing agents

NSAIDs may blunt the hypotensive effects

References

1, 29, 141, 192, 193

Last Edited

2018-12-09 05:20:40