Disclosed is an apparatus for producing one or more pharmaceutical products with a carrier substrate and a dosage of active agent. The apparatus includes a dispensing system for dispensing a droplet of the dosage of active agent onto each of the carrier substrates. The apparatus also includes a dosage monitoring system for determining an amount of the dosage of active agent for each of the pharmaceutical products. The dosage monitoring system includes a dose inspection system for determining the amount of the dosage of active agent as it is being added to each of the carrier substrates by the dispensing system. The dose inspection system obtains an image of the droplet while it is in-flight and determines the amount of the dosage of active agent as it is being added to each of the carrier substrates based on the image of the droplet. Each of the carrier substrates moves continually along the apparatus as the dosage monitoring system determines the amount of the dosage of active agent.