Ad
related to: contraindication vs adverse effect ppt free template
Search results
Results From The WOW.Com Content Network
In medicine, a contraindication is a condition (a situation or factor) that serves as a reason not to take a certain medical treatment due to the harm that it would cause the patient. [ 1 ] [ 2 ] Contraindication is the opposite of indication , which is a reason to use a certain treatment.
If someone has a very low MTC for a drug, they are likely to experience adverse effects at drug concentrations lower than what it would take to produce the same adverse effects in the general populace; thus, the individual will experience significant toxicity at a dose that is otherwise considered "normal" for the average person.
First-generation antihistamines like diphenhydramine and chlorpheniramine are able to move from the blood into the brain across the blood–brain barrier, where they block the H1 receptor, reducing the neurotransmitter effect of histamine, leading to central nervous system side effects such as drowsiness and confusion. [48]
There can be multiple indications to use a procedure or medication. [2] An indication can commonly be confused with the term diagnosis . A diagnosis is the assessment that a particular medical condition is present while an indication is a reason for use. [ 3 ]
Adverse effects, like therapeutic effects of drugs, are a function of dosage or drug levels at the target organs, so they may be avoided or decreased by means of careful and precise pharmacokinetics, the change of drug levels in the organism in function of time after administration. Adverse effects may also be caused by drug interaction. This ...
Type A: augmented pharmacological effects, which are dose-dependent and predictable [5]; Type A reactions, which constitute approximately 80% of adverse drug reactions, are usually a consequence of the drug's primary pharmacological effect (e.g., bleeding when using the anticoagulant warfarin) or a low therapeutic index of the drug (e.g., nausea from digoxin), and they are therefore predictable.
The drug methotrexate (bottom) is an antimetabolite that interferes with the metabolism of folic acid (top). An antimetabolite is a chemical that inhibits the use of a metabolite, which is another chemical that is part of normal metabolism. [1]
It is the strongest warning that the FDA requires, and signifies that medical studies indicate that the drug carries a significant risk of preventable, serious or even life-threatening adverse effects. [2] [3] Economists and physicians have thoroughly studied the effects of FDA boxed warnings on prescription patterns.