Question 1

What is Pentosan Polysulfate used for?

Accepted Answer

Pentosan Polysulfate is indicated for: Feline interstitial cystitis (FIC), Osteoarthritis.

Question 2

What routes can Pentosan Polysulfate be administered by?

Accepted Answer

Available routes: SC, PO.

Question 3

Which species have cited Pentosan Polysulfate dosing data?

Accepted Answer

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

Question 4

Is Pentosan Polysulfate a controlled substance?

Accepted Answer

Pentosan Polysulfate 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 Pentosan Polysulfate?

Accepted Answer

SC injection series for OA (weekly x 4). May affect coagulation. Also used for feline interstitial cystitis (oral). Not available in USA (available in Australia, EU).

Question 6

What are the side effects of Pentosan Polysulfate?

Accepted Answer

SC injection series for OA (weekly x 4). May affect coagulation. Also used for feline interstitial cystitis (oral). Not available in USA (available in Australia, EU).

Question 7

How does Pentosan Polysulfate work?

Accepted Answer

Semi-synthetic polysulfated xylanopyranose. Stimulates proteoglycan synthesis, inhibits catabolic enzymes, improves blood flow to subchondral bone.

Species	Route	Dose	Frequency	Evidence	Source
Dog (Domestic)	SC	3 mg/kg	weekly x 4	Moderate	BSAVA Small Animal Formulary, 10th Ed
Cat (Domestic)	SC	3 mg/kg	q3-5 days x 4 doses	Moderate	BSAVA Small Animal Formulary, 10th Ed

Pentosan Polysulfate

Drug Class

Routes

Indications

Mechanism of Action

Side effects & warnings

Species with Pentosan Polysulfate dosing data (2 dose rules)

Evidence levels across 2 dose rules

Backed by a published primary source

Sample dosing (2 of 2 cited rules)

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