Cydectin 0.1% Oral Drench for Sheep has a wide margin of safety and symptoms of overdose do not generally occur at less than 5 times the recommended dose.

Cydectin 0.1% Oral Drench for Sheep gives optimal pasture protection against stomach worms Ostertagia sp and Haemonchus sp, with an 8 week dosing interval–i.e. 5 week persistent activity, plus a 3 week interval from any re-infection to the presence of eggs in the dung.

Treat at or around lambing to minimise the ``spring rise'', and pre-tupping, when rams should be treated also.

After treatment, Cydectin 0.1% Oral Drench for Sheep continues to kill stomach worms picked up by the ewe for 5 weeks, thus substantially reducing pasture contamination. This ``vacuum-cleaning'' effect greatly reduces the worm challenge to lambs grazing the same pasture.

The first dose should be given at around 4-6 weeks of age, with a second dose, if required 8 weeks later. Additional treatment may be required where there is a Nematodirus challenge.

Treat lambs when a challenge is expected. Cydectin 0.1% Oral Drench for Sheep effectively controls Nematodirus at the time of dosing, but as with other available wormers does not offer a persistent effect against Nematodirus.