Moxidectin
AntiparasiticsAn endectocide (internal and external antiparasitic) of the macrocyclic lactone (milbemycin) class. It binds to glutamate-gated chloride channels in the nerve and muscle cells of parasites, causing paralysis and death. It is effective against roundworms and arthropods.
Pharmacological information
A class-level scientific overview for general reference — no doses. The ultimate reference is always the locally approved product leaflet and consultation with a veterinarian.
Mechanism of action
An endectocide (internal and external antiparasitic) of the macrocyclic lactone (milbemycin) class. It binds to glutamate-gated chloride channels in the nerve and muscle cells of parasites, causing paralysis and death. It is effective against roundworms and arthropods.
Indications
- Gastrointestinal and lung roundworms
- Mange, lice, and susceptible external parasites
Contraindications & warnings
- Some dog breeds (such as collies and those with the MDR1 mutation) are more sensitive to neurotoxicity
- Not used in species not authorized on the label
Drug interactions
- Its neurological effect may be aggravated by drugs that enhance GABA activity
Withdrawal periods
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Cattle | 14 days | 6 days | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Cattle | 14 days | 6 days | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Cattle | 14 days | 6 days | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Cattle | 14 days | 6 days | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Sheep | 14 days | 5 days | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Sheep | 14 days | 5 days | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Cattle | 14 days | 6 days | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Cattle | 14 days | 6 days | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Sheep | 31 days | — | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Cattle | 143 days | — | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Cattle | 108 days | — | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Sheep | 104 days | — | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Cattle | 14 days | 6 days | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Sheep | 14 days | 5 days | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Horses | 64 days | — | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Sheep | 14 days | 5 days | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Cattle | 14 days | 6 days | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Cattle | — | — | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Sheep | — | — | — |
| Species | Meat | Milk | Eggs |
|---|---|---|---|
| Horses | 32 days | — | — |
Recorded adverse effects
openFDA veterinary reports — the numbers are report counts, not a severity rate.
Dogs
Cats
Related products
Sources
- •Withdrawal periods: UK Veterinary Medicines Directorate (VMD).
- •Adverse effects: the openFDA veterinary database.
- •European Medicines Agency (EMA) — Veterinary medicines
- •Merck Veterinary Manual — Pharmacology
- •Always verify the locally approved leaflet and consult a veterinarian.