Abstract: An apparatus for producing and/or administering medicines and nutritional solutions to a patient. The apparatus includes a multiway valve having a plurality of inlets, an outlet and a collecting reservoir between the inlets and the outlet. The multiway valve may also have an injection site and connection that can be used both as an inlet and an outlet. The inlets, outlets and injection site each include a one-way valve which allows flow only in the direction from the inlets to the patient. A syringe may be connected to the inlet/outlet connection to draw an amount of solution form one or more of the solution bags and then move the solutions together into a mixing bag connected at the outlet, to prepare a medicine or nutritional solution.