Description
Cydectin SE Oral Drench for Sheep with Selenium
Cydectin SE Oral Drench for Sheep with Selenium is a potent broad-spectrum drench designed to treat internal and external parasites, including those resistant to other actives. It also delivers selenium supplementation for sheep grazing selenium-deficient pastures. With 14 days of persistent activity against key parasites, it’s ideal for managing parasite burdens on heavily contaminated pastures.
Why choose Cydectin SE?
- Contains moxidectin – the most potent macrocyclic lactone (ML), effective against ivermectin- and abamectin-resistant strains
- Broad-spectrum control – targets key gastrointestinal worms, lungworm, and itch mite
- Persistent activity – 14 days against barber’s pole and small brown stomach worm, reducing pasture contamination for up to 35 days
- Selenium support – aids in the prevention and control of selenium-responsive conditions such as ill thrift and white muscle disease
- Safety – wide safety margin when used as directed, compatible with fluke treatments, vaccines, and other non-selenium mineral supplements
Parasites controlled
Mature and immature worms:
- Barber’s pole worm (Haemonchus contortus)
- Black scour worm (Trichostrongylus spp)
- Stomach hair worm (Trichostrongylus axei)
- Small brown stomach worm (Ostertagia spp)
- Small intestinal worm (Cooperia spp)
- Thin-necked intestinal worm (Nematodirus spp)
- Intestinal threadworm (Strongyloides papillosus)
- Nodule worm, large-mouthed bowel worm, lungworm and more
Also controls: itch mite (Psorergates ovis)
Active ingredients
- Moxidectin 1.0 g/L
- Selenium (as sodium selenate) 0.5 g/L
Dosage and Pack Sizes
Administer orally at 1mL per 5kg bodyweight.
| Bodyweight (kg) | Dose (mL) | 5L Pack | 15L Pack |
|---|---|---|---|
| 10 | 2 | 2500 | 7500 |
| 11–15 | 3 | 1666 | 5000 |
| 16–20 | 4 | 1250 | 3750 |
| 26–30 | 5 | 1000 | 3000 |
| 31–35 | 7 | 714 | 2142 |
| 36–40 | 8 | 625 | 1875 |
| 41–45 | 9 | 555 | 1666 |
| 46–50 | 10 | 500 | 1500 |
| 51–55 | 11 | 454 | 1363 |
| 56–60 | 12 | 416 | 1250 |
| 61–65 | 13 | 384 | 1153 |
| 66–70 | 14 | 357 | 1071 |
| 70+ | Dose at 1mL per 5kg bodyweight | ||
Pack Sizes
Available in 5L and 15L
Technical Information
These documents provide verified product information for safety, handling and regulatory compliance.
- Safety Data Sheet (SDS): Cydectin-Oral-SE-SDS-v6
- Product Label: Cydectin Oral + Selenium for Sheep
- APVMA Product Registration Number: 48583
Note: Not recommended for use in goats as safety and efficacy have not been evaluated.
Manufactured by Virbac, a trusted name in livestock health products across Australia.

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