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By 1913 the name histamine was in use, using combining forms of histo-+ amine, yielding "tissue amine". "H substance" or "substance H" are occasionally used in medical literature for histamine or a hypothetical histamine-like diffusible substance released in allergic reactions of skin and in the responses of tissue to inflammation.
The treatment (in the form of subcutaneous injections) is given in 3-week cycles by the patients at home for 18 months, thus coinciding with the period of highest relapse risk. The side-effects include transient flush and headache , whereas IL-2 may induce low-grade fever and inflammation at the site of injection.
For most people, recommendations are to reduce blood pressure to less than or equal to somewhere between 140/90 mmHg and 160/100 mmHg. [2] In general, for people with elevated blood pressure, attempting to achieve lower levels of blood pressure than the recommended 140/90 mmHg will create more harm than benefits, [3] in particular for older people. [4]
The treatment for hypertension will depend on how high your blood pressure is and what’s causing it. For example, elevated blood pressure and hypertension stage 1 may require some lifestyle changes.
[42] [43] Hydralazine and its derivatives are also used in the treatment of severe hypertension, although they should be avoided in emergencies. [43] They are no longer indicated as first-line therapy for high blood pressure due to side effects and safety concerns, but hydralazine remains a drug of choice in gestational hypertension .
There are more women than men with hypertension, [19] and, although men develop hypertension earlier in life, [20] hypertension in women is less well controlled. [21] [22] The consequences of high blood pressure in women are a major public health problem and hypertension is a more important contributory factor in heart attacks in women than men ...
Various vasoactive agents, such as prostanoids, phosphodiesterase inhibitors, and endothelin antagonists, are approved for the treatment of pulmonary arterial hypertension. The use of vasoactive agents for patients with pulmonary hypertension may cause harm and unnecessary expense to persons with left heart disease or hypoxemic types of lung ...
Guidelines on the choice of agents and how best to step up treatment for various subgroups in hypertension (high blood pressure) have changed over time and differ between countries. A Comparison of International Guidelines on Goal Blood Pressure and Initial Therapy for Adults With Hypertension (adapted from JNC 8 guidelines [ 1 ] )