ACETAZOLAMIDE

(Diamox)

Standard Prescription

acetazolamide __mg PO/IV Q__H (__mg/kg/dose)

Dosages

Diuretic:  
5 mg/kg/dose PO/IV daily or every other day

Glaucoma: 
2.5-7.5 mg/kg/dose PO/IV Q6-8H
Maximum: 1000 mg/24 hr

Increased Intracranial Pressure:
Initial:  6.7 mg/kg/dose PO/IV TID
Maximum: 100 mg/kg/24 hr or 2000 mg/24 hr (whichever is lower)

Seizures:  
Initial: 2 mg/kg/dose PO BID
Maintenance: 4-10 mg/kg/dose PO BID to TID (8-30 mg/kg/24 hr)
(Limited additional benefit above 16 mg/kg/24 hr)
Maximum: 30 mg/kg/24 hr or 1000 mg/24 hr (whichever is lower)

Urine Alkalinization:  
5 mg/kg/dose IV/PO repeated 2-3 times over 24 hr

Mechanism of Action

Diuretic; carbonic anhydrase inhibitor

Forms Supplied

Tablet: 250 mg

Injection: 500 mg/vial

Oral suspension (BCCH): 25 mg/mL

Comments

Avoid if allergic to sulfonamides.

Diuresis more effective given every other day or 2 out of 3 days only.

250 mg tablets can be quartered. May adjust dose according to tablet increments.

IM injections may be painful and are not recommended.

Take with food to minimize GI irritation, decreased appetite.

Adverse Effects: GI irritation, decreased appetite, metabolic acidosis, electrolyte imbalance, paresthesia, polyuria.

Bicarbonate replacement therapy may be required in long term use.

References

32, 44, 361

Last Edited

2023-01-12 06:13:08