I found a half of pill in my little sisters pants when doing laundry. I only know that it is white and oblong shaped. I can make out that the number on it starts with a 4, and there is room for two more numbers, the next number may possibly be a 2. On the other side there is something, I have no idea what though. She is a junior in high school, and my mom is freakin out. Anybody know what this might be?