Cydectin (Moxidectin) Injectable Solution for Beef and Dairy Cattle (500 ml) | On Sale | EntirelyPets Rx
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Cydectin (Moxidectin) Injectable Solution for Beef and Dairy Cattle (500 ml)

Item# IWM027082
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Cydectin (moxidectin) is an injectable solution for beef and non-lactating dairy cattle. Treats and controls internal and external parasites of cattle. Treats nine types of gastrointestinal roundworms, lungworms, two types of cattle grubs, mites and two types of lice. Not fo use in dairy cattle of breeding age, veal calves and calves younger than 8 weeks.

Key Benefits

  • Injectable solution
  • For beef and nonlactating dairy cattle
  • For treatment of infections and infestations due to internal and external parasites
  • Antiparasitic


CYDECTIN Injectable, when administered at the recommended dose level of 0.2 mg/2.2 lb (0.2 mg/kg) body weight, is effective in the treatment and control of the following internal and external parasites of cattle:

Gastrointestinal Roundworms

  • Ostertagia ostertagi - Adults and L4 (including inhibited Larvae)
  • Haemonchus placei - Adults
  • Trichostrongylus axei - Adults and L4
  • Trichostrongylus colubriformis - Adults and L4
  • Cooperia oncophora - Adults
  • Cooperia pectinata - Adults
  • Cooperia punctata - Adults and L4
  • Cooperia spatulata - Adults
  • Cooperia surnabada - Adults and L4
  • Nematodirus helvetianus - Adults
  • Oesophagostomum radiatum - Adults and L4
  • Trichuris spp. - Adults


  • Dictyocaulus viviparus - Adults and L4

Cattle Grubs

  • Hypoderma bovis
  • Hypoderma lineatum


  • Psoroptes ovis(Psoroptes communis var. bovis)


  • Linognathus vituli
  • Solenopotes capillatus

Persistent Activity:

  • CYDECTIN Injectable has been proven to effectively protect cattle fromreinfection with Dictyocaulus viviparus and Oesophagostomum radiatum for 42 days aftertreatment, Haemonchus placei for 35 days after treatment, and Ostertagia ostertagi and Trichostrongylus axei for 14 days after treatment.

Management Considerations for External Parasites:

  • For most effective external parasitecontrol, CYDECTIN Injectable should be administered to all cattle in the herd. Cattle entering the herd following this administration should be treated prior to introduction. Consult your veterinarian or a livestock entomologist for the most appropriate time to administer CYDECTIN Injectable in your location to effectively control external parasites.


View Cydectin Drug Facts Sheet.

The recommended rate of administration for CYDECTIN Injectable is 1 mL for each 110 lb(50 kg) body weight to provide 0.2 mg moxidectin/2.2 lb (0.2 mg/kg) body weight. The tablebelow will assist in the calculation of the appropriate volume of injectable which must beadministered based on the weight of animal being treated. Be careful not to overdose animals; estimate animal's body weight as closely as possible or weigh animals individually.

Do not underdose. Ensure each animal receives a complete dose based on a current body weight. Underdosing may result in ineffective treatment, and encourage the development of parasite resistance.


CYDECTIN Injectable should be administered by subcutaneous injection under the loose skin in front of or behind the shoulder (Figure 1). Needles ½ to ¾ inch in length and 16 to 18 gauge are recommended for subcutaneous injections. Use sterile, dry equipment and aseptic procedures when withdrawing and administering CYDECTIN.

Human Warnings:

Not For Use in Humans. Keep this and all drugs out of the reach of children. For customer service or to obtain product information, including Safety Data Sheet (SDS), call 1-800-633-3796. For medical emergencies or to report adverse reactions, call 1-800-422-9874.

Residue Warnings:

Cattle must not be slaughtered for human consumption within 21 days of treatment. This drug product is not approved for use in female dairy cattle 20 months of age or older, including dry dairy cows. Use in these cattle may cause drug residues in milk and/or in calves born to these cows. A withdrawal period has not been established for preruminating calves. Do not use in calves to be processed for veal.

Animal Safety Warnings:

Do not use in sick, debilitated, or underweight animals. In foreign countries there have been reports of adverse effects, including death. This product should not be used in calves less than 8 weeks of age because safety testing has not been done in the U.S. in calves less than 8 weeks of age.

Environmental Warnings:

Studies indicate that when moxidectin comes in contact with the soil, it readily and tightly binds to the soil and becomes inactive. Free moxidectin may adversely affect fish and certain aquatic organisms. Do not contaminate water by direct application or by improper disposal of drug containers.

Other Warnings:

  • Parasite resistance may develop to any dewormer, and has been reported for most classes of dewormers.
  • Treatment with a dewormer used in conjunction with parasite management practices appropriate to the geographic area and the animal(s) to be treated may slow the development of parasite resistance.
  • Fecal examinations or other diagnostic tests and parasite management history should be used to determine if the product is appropriate for the herd/flock, prior to the use of any dewormer. Following the use of any dewormer, effectiveness of treatment should be monitored (for example, with the use of a fecal egg count reduction test or another appropriate method).
  • A decrease in a drug's effectiveness over time as calculated by fecal egg count reduction tests may indicate the development of resistance to the dewormer administered. Your parasite management plan should be adjusted accordingly based on regular monitoring.
  • Macrocyclic lactones provide prolonged drug exposure that may increase selection pressure for resistant parasites. This effect may be more pronounced in extended-release formulations.


CYDECTIN Injectable has been formulated specifically for subcutaneous injection in cattle and should not be given by other routes of administration. Subcutaneous injection can cause transient local tissue reaction that may result in trim loss of edible tissue at slaughter if animals are slaughtered within 35 days after treatment. This product should not be used in other animal species as severe adverse reactions, including fatalities in dogs, may result.

CYDECTIN Injectable is effective against the migrating stage of cattle grubs (Hypoderma larvae). Treatment with CYDECTIN Injectable during the period when grubs are migrating through vital areas may cause undesirable host-parasite reactions. Killing H. lineatum when they are located in peri-esophageal tissues may cause bloat. Killing H. bovis when they are in the vertebral canal may cause staggering or hindlimb paralysis. Cattle should be treated as soon as possible after heel fly (warble fly) season to avoid this potential problem. Cattle treated with CYDECTIN Injectable at the end of fly season can be retreated during the winter without danger of grub-related reactions. Consult your veterinarian for more information regarding these secondary grub reactions and the correct time to treat with CYDECTIN Injectable.

Animal Safety

U.S. tolerance and toxicity studies have demonstrated that CYDECTIN Injectable has an adequate margin of safety for use in cattle 8 weeks of age and older. No toxic signs were seen in growing cattle given up to 5 times the recommended dose. Calves as young as 8 weeks of age showed no toxic signs when treated with up to 3 times the recommended dose while nursing from cows concurrently treated with the recommended dose level of CYDECTIN Injectable. Mild, transient ataxia was noted in growing cattle receiving 10 times the recommended dose and in bulls treated at 4.5 times the recommended dose. In breeding animals (bulls and cows in estrous and during early, mid and late pregnancy), treatment with at least 3 times the recommended dose had no effect on breeding performance.

Signs of toxicity include ataxia, excessive salivation, depression, and mydriasis. These signs usually occur within 12 to 48 hours post-treatment.


Store product at or below 77°F (25°C). Protect from light. Use contents within 12 months of first puncture.


Do not contaminate water by direct application or by improper disposal of drug containers. Dispose of containers in an approved landfill or by incineration.

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