A small needled 1cc syringe can be used to draw the dose. Look for a syringe with a removable needle. Stick the needled tip in the self sealing rubber top of the ivermectin bottle. Invert the bottle and slowly draw a single dose into the syringe. If you cannot remove the needle, dose carefully to avoid pricking your pet. For photographs to illustrate how this is done, see: http://www.guinealynx.info/forums/viewtopic.php?t=30325
DO NOT DRAW MULTIPLE DOSES TO TREAT SEVERAL GUINEA PIGS AT ONE TIME.