What are calcium channel blockers and how do they work? In order to pump blood, the heart needs oxygen. The harder the heart works, the more oxygen it requires. Angina (heart pain) occurs when the supply of oxygen to the heart is inadequate for the amount of work that the heart must do. By dilating …
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What is amiodarone, and how does it work (mechanism of action)? Amiodarone is an oral and injectable drug that is used to correct abnormal rhythms of the heart. (It is an antiarrhythmic medication.) Although amiodarone has many side effects, some of which are severe and potentially fatal, it has been successful in treating many arrhythmias when other antiarrhythmic drugs have …
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What is ursodiol? What are the uses for ursodiol? Ursodiol is a naturally-occurring bile acid that is made by the liver in humans and is secreted in small quantities into bile. It is used to dissolve and prevent cholesterol gallstones and to treat primary biliary cirrhosis, a disease of the liver. Ursodiol blocks the enzyme in the liver that produces …
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What is amitriptyline, and how does it work (mechanism of action)? Amitriptyline is in the class of drugs called tricyclic antidepressants (TCAs) and is used for treating depression. Other drugs in the same class include: clomipramine (Anafranil), doxepin (Sinequan), imipramine (Tofranil), trimipramine (Surmontil), amoxapine (Amoxapine), desipramine (Norpramin), and protriptyline (Vivactil). Individuals with depression may have an imbalance in neurotransmitters, chemicals …
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What is ondansetron oral disintegrating tablet, and how does it work (mechanism of action)? Ondansetron is an anti-nausea medication most often used to prevent nausea and vomiting caused by chemotherapy. Chemotherapy agents increase secretion of serotonin which stimulates serotonin (5-HT3) receptors in the brain, causing nausea and vomiting. Ondansetron works by selectively blocking serotonin (5-HT3) receptors, reducing the effect of …
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What is acyclovir, and how does it work (mechanism of action)? Acyclovir is an antiviral drug, a synthetic nucleoside analogue, that has inhibitory activity (interferes with viral replication) against the herpes viruses, including herpes simplex 1 and 2 (cold sores and genital herpes), varicella-zoster (shingles and chickenpox), and Epstein-Barr virus (mononucleosis). Viruses take over living cells and reproduce themselves, often …
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What are thyroid replacement hormones and how do they work? Thyroid replacement hormones are medications used to treat hypothyroidism, a condition in which the production of thyroid hormone in the body is abnormally low. Thyroid hormones increase cellular metabolism (activity of cells) that is responsible for growth, development of tissues, maintenance of brain function, body temperature regulation and several other …
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What is telmisartan, and how does it work (mechanism of action)? Telmisartan is a member of a family of drugs called angiotensin receptor blockers (ARBs), which includes losartan (Cozaar), valsartan (Diovan), irbesartan (Avapro), and candesartan (Atacand). Angiotensin, formed in the blood by the action of angiotensin converting enzyme (ACE), is a powerful chemical that attaches to angiotensin receptors found in …
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What is chlorhexidine gluconate? What are the uses for chlorhexidine gluconate? Chlorhexidine gluconate is an antiseptic and antimicrobial oral rinse. It provides protection against a wide range of bacteria. It kills bacteria by binding to bacteria cell walls. The FDA approved chlorhexidine in August 1986. What brand names are available for chlorhexidine gluconate? Peridex, Periogard, Periochip Is chlorhexidine gluconate available …
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What is oral passion flower (Passiflora incarnata)? What are the uses for oral passion flower? Passion flower is a plant used for making medicine to treat several conditions. Passion flower may have effects that are similar to benzodiazepines (for example diazepam [Valium]) and monoamine oxidase inhibitors or MAOIs (for example, selegiline). Passion flower has calming, sleep inducing, and muscle spasm …
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