Answer:
Contraindication
Step-by-step explanation:
A situation in which a medication should likely not be used unless instructed by a prescribing physician is the definition of a contraindication. Contraindications could be certain conditions, specific age ranges, lab values that are too high or too low, numerous vital signs, etc. An example would be avoiding using aspirin if the patient is allergic to the medication because hypersensitivity is a contraindication for this drug.
On the other hand, an indication is a situation in which a medication should be used because it can alleviate symptoms or completely treat a condition. Using aspirin again as an example, it is indicated for mild to moderate pain (think 4-5 on a 0-10 pain scale), fevers, some inflammatory disorders, and heart attack prevention.
A dose is the amount of medication a patient is to be given, usually accompanied by a unit of measurement (i.e. milligrams), the route of administration (e.g. per os [PO], or by mouth), and a frequency at which the medication should be used.
A side effect is a known symptom that may or may not occur as a result of using a certain medication, once more using aspirin, the patient may develop some nausea when taking this drug.