Question 1

What is Penicillamine used for?

Accepted Answer

Penicillamine is indicated for: Copper hepatopathy, Copper storage hepatopathy, Copper-associated hepatopathy, lead poisoning.

Question 2

What routes can Penicillamine be administered by?

Accepted Answer

Available routes: PO.

Question 3

Which species have cited Penicillamine dosing data?

Accepted Answer

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

Question 4

Is Penicillamine a controlled substance?

Accepted Answer

Penicillamine 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 Penicillamine?

Accepted Answer

Give on empty stomach (1 hour before or 2 hours after meals). GI upset common — start low and increase gradually. Monitor CBC and urinalysis (proteinuria). Primary use: copper-associated hepatopathy (Bedlington Terriers, others).

Question 6

What are the side effects of Penicillamine?

Accepted Answer

Give on empty stomach (1 hour before or 2 hours after meals). GI upset common — start low and increase gradually. Monitor CBC and urinalysis (proteinuria). Primary use: copper-associated hepatopathy (Bedlington Terriers, others).

Question 7

How does Penicillamine work?

Accepted Answer

Chelates copper, lead, mercury, and other heavy metals, forming soluble complexes excreted by the kidneys. Also has anti-inflammatory and immunomodulatory properties.

Species	Route	Dose	Frequency	Evidence	Source
Dog (Domestic)	PO	10–15 mg/kg	q12h	Moderate	Plumb's Veterinary Drug Handbook, 9th Ed
Dog (Domestic)	PO	10–15 mg/kg	q12h	Strong	Plumb's Veterinary Drug Handbook, 9th Ed

Penicillamine

Drug Class

Routes

Indications

Mechanism of Action

Side effects & warnings

Species with Penicillamine dosing data (3 dose rules)

Evidence levels across 3 dose rules

Backed by a published primary source

Sample dosing (2 of 3 cited rules)

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