Paracetamol-containing drugs, which are prescribed by specialist doctors, are used to eliminate the symptoms that occur due to flu infections. Drugs with paracetamol as an active ingredient are preferred because of their antipyretic and analgesic properties, they are colorless and bitter. Paracetamol, which is an odorless, white and crystalline powder, has a bitter taste and is soluble in water to a limited extent. When paracetamol is taken orally, it is rapidly absorbed in the gastrointestinal tract, that is, the part from the mouth to the anus where the body's chewing, digestion, absorption and excretion processes occur. Paracetamol-containing drugs reach maximum plasmas only 30 to 60 minutes after ingestion and are rapidly distributed to all tissues. The binding of drugs containing paracetamol to plasma proteins is weak.