Petnology Adult Multi Chewable, 75 Count Daily multivitamin for dogs over 1 year of age Up to 20 lbs. - 1 Chewable Daily, 21-40 lbs. - 2 Chewable Daily, 41-60 lbs. - 3 Chewable Daily, Over 60 lbs. - 4 Liver flavored chewable