Frowning, you take a pill colored black and grey and swallow it. You feel your body become slightly warmer as it goes down your throat. You wait a few moments, but nothing seems to happen.
Suddenly, you feel your body start to tingle uncomfortably. The feeling remains for several seconds before giving way to an itchiness. You scratch yourself, but the itching just gets worse. You walk over to a full-body mirror to see what's happening. To your shock, you see small, gray hairs poking out of your skin, sprouting all over your body and growing thicker by the second. You see your eyes become a dark shade of brown. "W-what's happening to me?"
Your hands begin to twitch uncontrollably. Looking down, you see black hairs growing all over them, while your nails darken and become sharper. Black paw pads form on your palms, making your hands look akin to the paws of an animal. You grit your teeth as your feet grow longer, stretching and changing similarly to your hands.
Unable to stand on two legs, you drop to all fours. You grunt as your body starts to reshape, your bones making popping noises. The world around you seems to be getting bigger... No, you're shrinking! You feel something growing from your rear - a long, fluffy tail, with black and gray striped fur. The fur has covered your body now, and you look up to watch it sprout on your face, growing grey on most of it but black around your eyes. You realize now what animal you're turning into - a raccoon!
You clench your teeth as your canines sharpen into fangs. Your nose turns black, becoming leathery and moist, and your ears reshape as they move to the top of your head. A jolt goes through your jaw, and you cry out as it starts to pop and reshape. You scream as your face pushes out, elongating into a muzzle. Finally, long, white whiskers sprout from your muzzle.