Metaphor originated from the Greek word, metaphor which simply means to transfer. Analogy on the other hand came from the Greek word, analogia which means proportion. Given these etymologies, metaphor is a figure of speech that actually transfers the meaning of one thing directly on another unit.
Medicines that are taken âas neededâ are known as âPRNâ medicines. âPRNâ is a Latin term that stands for âpro re nata,â which means âas the thing is needed.â. Itâs important to know the difference between daily and âas neededâ medicines.hese instructions should include the following information: 1  How much medicine you can take in a set period of time. 2  When to take your PRN medication. 3  When to take scheduled and PRN medications for a single health problem.
Pradaxa (dabigatran) is an anticoagulant (thrombin inhibitor) that helps prevent the formation of blood clots. Pradaxa is used to reduce the risk of stroke and blood clots in people who have a medical condition called atrial fibrillation. Pradaxa is also used to treat blood clots in the veins of your legs (deep vein thrombosis, or DVT) or lungs (pulmonary embolism, or PE) and reduce the risk of them occurring again.