Summary Information

Classification Chemicals / Complex Chemical Agents / Type:

(This chemicals section is currently predominantly used in Wildpro to link different data types and demonstrate inter-relationships. It does not contain detailed information on the chemical itself.)

Alternative Names Amprolium hydrochloride
Notes Information in this page has been entered to support the current volumes of Wildpro and further information will be added as new volumes are completed. This page is not intended to substitute for the manufacturer's data sheet and the information is not yet complete for all species, or for all contra-indications etc.

CAUTION: Before any pharmaceutical product is used, the manufacturer's data sheet, containing information on uses, dosage and administration, contra-indications, warnings etc., should always be consulted. It is important to remember that licensing of pharmaceutical products for use in a particular species/condition, as well as mandatory meat and milk withdrawal times for food-producing animals, varies between countries and changes with time. Withdrawal times also may vary between different pharmaceutical formulations and depending on route of administration. In the EU, the prescription cascade must be followed (see LCofC1.2H and W564.Apr05.w1); note that specific restrictions apply for food-producing animals. In the USA, FARAD may be consulted regarding residues and meat and milk withdrawal times.

Thiamine analogue anticoccidial. Competitively inhibits thiamine use in the parasite. Anticoccidial effect can be reversed if the diet is high in thiamine. (B263)

Anticoccidial: "acts on the first-generation schizont to prevent merozoite production and has some activity against sexual stages and the sporulating oocyst." (B553.47.w47)

  • Used in the treatment of coccidiosis (in pigeons in the UK). (B340.1.w1)
  • Note: Prolonged use at high dosages may result in thiamine deficiency. (B263)

Lagomorphs - Oryctolagus cuniculus domesticus - Domestic rabbit:

  • 9.6%, 0.5 mL per pint of drinking water for 10 days. Coccidiosis. (B548.w8)
  • 9.6%, 5 mL per gallon of drinking water for 21 days. Coccidiosis. (B548.w8)
  • 20 mg/kg orally every 24 hours for five days. (B601.15.w15)
  • 96 mg (1 mL of 9.6% solution) per litre of drinking water for 10 days. (B601.15.w15)
  • 2.3 mL of 3.84% solution per litre of drinking water for prophylaxis against coccidial infections. (B603.5.w5)

Ferrets - Mustela putorius furo - Ferret:

  • 19 mg/kg orally (can be mixed into moist food). For the treatment of coccidiosis. (B627.16.w16)


  • 0.0125 mg per kg of feed continuous. For prophylaxis against coccidiosis. (B336.20.w20)
  • 0.025 mg per kg of feed for 14 days. For treatment of coccidiosis. (B336.20.w20)
  • 0.006% in drinking water, continuous. For prophylaxis against coccidiosis. (B336.20.w20)
  • 2.2 ppm in feed or in the only source of drinking water. For the control of coccidiosis. (B12.56.w14)

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