It's the first time I've used the granules instead of the liquid and I'm attempting to do the 7 day lungworm dosage.

The pack says:

"1 sachet per 20kg bodyweight daily for 7 days'.

My dogs are approx 25kg, give or take a kg either way. 

Am I right that I should give 1 sachet a day?  (Does it mean that to go up to 2 sachets a day, your dog would need to weigh 40kg?)

confused dot com.

Anyone know...?

My experience of this is with horses and I would be giving 1 sachet to a 20kg dog 1.5 to a 30kg dog and 2 to a 40kg dog personally I would rather overdose than underdose so I would be tempted to give yours 1.25 as best I could work out.

Thanks, that is helpful.  It is a bit hard to figure out a quarter of one of these sachets of powder though!  I think the liquid is easier to measure.  (Although it is less messy to use the powder, which is why I thought I'd give it a go.)

Basically I would not think that being a bit up one day and down the next would matter too much - I would be aiming to use 9 sachets per dog over 7 days (or if you want to be really picky 8.5) and as long as I knew they had had all that I would not worry too much.  One other note - they seem to know when it is on the food but I had spectacular success mixing it with a desertspoon of natural yoghurt when I had to dose my girls for angio whatsits this year gave them that before breakfast then normal brekkie and tea

Thanks again, that's exactly what Im doing (covering it with natural yoghurt) and it's going down!