When incompatible blood is given, antibodies and complement in the recipient plasma attack the antigens on the donor RBC. Hemolysis ensues The antigen-antibody complex activate the Hageman factor (factor XII), which acts on the kinin system to produce bradykinin
Still it is not advisable to take it after the expiry date written on the bottle. This is just for your information to let you know that you are safe. Anyway Saline Nasal spray is not going to do any harm even if you used an expired one. So forget about it.
Does popcorn expire? The shelf life of popcorn depends on the best before date, the packaging and how it is stored. Popcorn is 100% whole grain, thus low in fat and high in fiber, making a prefect snack. The reason that popcorn pops is that when the corn is heated, the moisture trapped within the kernel expands.