Because of your pets health. If you have a 26lb dog receiving a pill for 26-50lb dogs, not only are you giving them double the necessary dose of neurotoxins and pesticides, but you are giving them an *entire months* worth up front. An entire months dose for a 50lb dog. These things *could* be given on a weekly basis at a dose intended for a 26lb dog.
Making the world better, one answer at a time. I am a sixty one year old woman who is in good health. I received a tetanus shot yesterday and hours later I was feeling a bit tired. Romany Sedhom.
Tetanus - 10 years ; Typhoid - 3 years ; Yellow Fever - 10 years ; what are the likely side effects: These days, vaccines cause fewer problems than in the past. On the day of vaccination, most people can work, drive a car, play sport or go to the gym, but it is best to 'take it easy'. Modern vaccines do not leave a scar. Any vaccine can cause rare and less common reactions.