This little yellow round pill with "spa" printed on one side is called No-Spa (Drotaverinum hydrochloricum 40 mg). This is an over the counter pill commonly used in Europe:
"No Spa® (drotaverine) is a line of analgesic products for children and adults. No Spa® is particularly well suited for quickly and effectively easing spasmodic gastro-intestinal, biliary, or gynecological pain. No Spa® is marketed in many Central and Eastern European countries (primarily Russia, Ukraine, Poland, and Hungary), in Central Asia, and in some African and Southeast Asian countries."
I grew up in Russia, and it's a very common pill for stomach pains. My mom is a doctor and she always told me that it relaxes the muscles of the internal organs to ease the pain. If you've got a bottle that has Russian writing on it, the name of the pill in Russian should look like this: НО-ШПА.