Yes, Equimax is soft paste. I've used it and it's safe for your chickens, but not safe for the tapeworms, it kills them. As a matter of fact, you might even see whole parts or sections of the actual tapeworm excreted in feces after using the Equimax. I've seen it happen.
Because the paste is soft, you can even draw it up using a syringe without a needle in order to dose the infected chicken(s). There are no risks using Equimax. Just use common sense and follow the dosing amounts I provided in your other thread and everything will be fine.
An easy way to give it orally is to cradle the hen in your forearm. Preload the syringe with the paste. With your arm cradling the hen, use your thumb and fingers on the same hand (same arm) and pull straight down on the hens wattles and her mouth will open.
With your free hand, grab the pre-loaded syringe and shoot the paste in the hens mouth and quickly let go of her wattles so the hen can swallow the wormer. Done.
Release the hen.
Practice that procedure, a dry run so to speak. You'll be an expert in no time when it comes to worming chickens and/or even giving them liquid medications and/or liquid wormers when the need arises.
One last thing: It's best to worm early in the morning before sunrise. Go out to the coop when it's still dark. Bring a flashlight, get your syringe loaded up, then snatch a bird off the roost and worm her, then release her. Snatch another bird off the roost and repeat again. Chickens cant see in the dark, take advantage of it while they are roosting.