Blood pressure drugs

Dopamine, norepinephrine, and serotonin have other responsibilities in the body besides dictating hunger. For example, norepinephrine also helps control blood pressure. Drugs that affect the level of these neurotransmitters interfere with other body processes and produce negative side effects. A drug that increases norepinephrine will decrease appetite, but... 

K. Kamei, T. Haruyama, M. Mie, Y. Yanagida, M. Aizawa, and E. Kobatake, The construction of endothelial cellular biosensing system for the control of blood pressure drugs. Biosens. Bioelectron. 19, 1121-1124(2004). 

The main indication for an inhibition of a-adreno-ceptors is an increased blood pressure. Drugs like prazosine, doxazosine or terazosine block selectively O 1-adrenoceptors, resulting in a relaxation of resistance arteries, arteriols and venules. This subtype selectivity, leaving the Q 2-iiiediated autofeedback control unaltered, may be the cause for... 

In a nutshell, salt and other sodium compounds are involved in a chemical sequence initiated in the kidneys that ends with the production of a substance, angiotensin, that raises blood pressure. In fact, some of the blood pressure drugs that doctors prescribe block the action of that angiotensin. The more sensitive one is to sodium, the more angiotensin gets made in the kidney, the more sodium is stored in the body, and the more water is retained in the body s tissues. All of this raises blood pressure. 

Drugs lower blood pressure by actions on peripheral resistance, cardiac output, or both. In patients with isolated systolic hypertension, complex hemodynamics in a rigid arterial system contribute to increased blood pressure drug effects may be mediated by changes in peripheral resistance but also via effects on large artery stiffness. 

Penicillin may alter the results of some medical tests, such as those for the presence of sugar in the urine. Penicillin can also interact with a number of other medications, including blood thinners, thyroid drugs, blood pressure drugs, birth control pills, and other antibiotics, in some cases decreasing their effectiveness. 

Gleiter CH, Muhlbauer B, Gradin-Frimmer G, Antonin KH, Bieck PR. Administration of sympathomimetic drugs with the selective MAO-A inhibitor brofaromine. Effect on blood pressure. Drug Invest (1992) 4, 149-54,... 

Lindholm LH, Carlberg B. Blood-pressure drugs and cancer much ado about nothing Lancet Oncol 2011 12 6-8. 

Physiological responses to prostaglandins encompass a variety of effects Some prostaglandins relax bronchial muscle others contract it Some stimulate uterine con tractions and have been used to induce therapeutic abortions PGEj dilates blood vessels and lowers blood pressure it inhibits the aggregation of platelets and offers promise as a drug to reduce the formation of blood clots... 

Epinephrine itself does find some use in clinical medicine. The drug is used in order to increase blood pressure in cases of circulatory collapse, and to relax the bronchial muscle in acute asthma and in anaphylactic reactions. These activities follow directly from the agent s physiologic role. The biogenetic precursor of epinephrine, norepinephrine, has activity in its own right as a mediator of sympathetic nerve action. (An apocryphal story has it that the term nor is derived from a label seen on a bottle of a key primary amine in a laboratory in Germany N ohne... 

Sympathomimetic. A drug that produces effects similar to stimulating the sympathetic nervous system, that is, increased blood pressure, dilated bronchi, and mydriasis. 

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