kval we have done that with all our dogs, sadly it doesnt always work.
Zm starting dose for a small dog is 3 mg per day, medium dog, 6 mg per day, large dog 9mg per day but more may be needed plus top ups. both of mine weigh around 32kg, one is on 9mg per day if i think there is going to be a need, plus up to snother 18 mg in top ups if things get bad. . His litter brother is on 15 mg per day plus up to snother 18 mg in top ups. I dont give it every day if nothing is happening, they have been on it for the last 10 days because of the dire weather and they both get a base dose everyday from halloween to the end of november and over christmas and new year. I've been doing this for just over a year now and have noticed nonside effects except that when they have had a lot the gas gets a bit nuclear. it doesnt have any other effect other than to reduce the terror, they are still as boisterous and active as ever