Question 1

What is Triamterene used for?

Accepted Answer

Triamterene is indicated for: Potassium-sparing diuresis, Potassium-sparing diuresis (CHF adjunct).

Question 2

What routes can Triamterene be administered by?

Accepted Answer

Available routes: PO.

Question 3

Which species have cited Triamterene dosing data?

Accepted Answer

Triamterene dosing in the ExoticRx formulary covers 2 species: Cat (Domestic), Dog (Domestic).

Question 4

Is Triamterene a controlled substance?

Accepted Answer

Triamterene is not federally scheduled as a controlled substance, but is veterinary prescription only in most jurisdictions.

Question 5

What are the warnings or contraindications for Triamterene?

Accepted Answer

Hyperkalemia risk — monitor electrolytes. Avoid with ACE inhibitors or other K-sparing agents without careful monitoring. Nephrolithiasis risk.

Question 6

What are the side effects of Triamterene?

Accepted Answer

Hyperkalemia risk — monitor electrolytes. Avoid with ACE inhibitors or other K-sparing agents without careful monitoring. Nephrolithiasis risk.

Question 7

How does Triamterene work?

Accepted Answer

Blocks epithelial sodium channels (ENaC) in the collecting duct independently of aldosterone, reducing sodium reabsorption while sparing potassium.

Species	Route	Dose	Frequency	Evidence	Source
Dog (Domestic)	PO	1–2 mg/kg	q12h	Weak	Plumb's Veterinary Drug Handbook, 9th Ed
Cat (Domestic)	PO	1–2 mg/kg	q12-24h	Extrapolated	Plumb's Veterinary Drug Handbook, 9th Ed

Triamterene

Drug Class