Question 1

which is the most potent histamine h1 receptor blocker that causes serious sedation?

Accepted Answer

Too many to list: There are truly dozens of h1 receptor blockers, many of the first generation of which will result in sleepiness. The tow most commonly used to treat insomina (which would result in sleeping) are Diphenhydramine and doxylamine.

Question 2

is there a androgen receptor blocker that only bind to pituitary?

Accepted Answer

No: There is no androgen blocker that only binds at the pituitary.  The availabl eandrogen blockers will block androgen throughout the body, although in men the aromatase inhibitors (a homronal treatment for women) may have a differential effect on the pituitary and may increase testosterone in men.  
A good review of the pituitaryaxis and andorgens can be found here http://www.ncbi.nlm.nih.gov/pmc/ar

Question 3

what's the most popular angiotensin receptor blocker and why is it the most prescribed? how do doctors decide which arb to prescribe?

Accepted Answer

: Most are very sensitive to drug pushers and that is the reason they are mostly forbidden to enter many dr offices. I would go to Drugs.com and review. The most popular may not be the best.  A lot of it depends on how well the company has put into pushing their own med.  I would also go to PUBMED.gov and read for yourself.

Question 4

when i take my angiotensin receptor blocker in the morning i get extreme anxiety, and when i take it at night it actually makes me sleepy. doesn't make sense. on drugs.com people complain about anxiety from arbs why is that?

Accepted Answer

: Medication adverse effects are common and vary individually. Sleepiness is not a common adverse effect of an ARB drug but the opposite, insomnia, is more common but I think it could happen. In that case, you can safely take this medication at bedtime. Unfortunately, I doubt if any doctor or pharmacist can offer you a satisfactory answer.

Question 5

what happens if someone with normal blood pressure of 120/80 takes an angiotensin receptor blocker daily, with an average reduction of 8 systolic/5 diastolic would it make them sick or damage their heart?

Accepted Answer

: A mild decrease in blood pressure should not cause any problems.  Possibly some lightheadedness or dizziness on standing.  It should not damage the heart.

Question 6

is it possible that when you give someone valsartan or any other angiotensin receptor blocker their sympathetic nervous system gets more activated and they become more hyper aroused in response to emotional stressors?

Accepted Answer

: Although measurement of sympathetic nervous system activity is difficult, hormonal studies have demonstrated that ARBs and ACE inhibitors have no significant effect on sympathetic nervous system activity.  I have worked with these converting enzyme inhibitors in numerous patients ever since they became available and have never seen inappropriate sympathetic nervous system overactivity in them.

Question 7

what do h2 receptors in the heart do?

Accepted Answer

H2 receptors: This is an excellent question. After reviewing the literature, I can say that I don't think we really know. There are various things possible that they do but a solid study with consistent results other than in rats or pigs, I couldn't find.

Question 8

what is the definition or description of: receptor?

Accepted Answer

Receptor Def: An organ, cell or molecule that accepts an outside signal and causes an internal change. Eyes receive light, touch receptors send messages to the brain when stimulated by pressure and estrogen receptors bind Estradiol causing responses of normal breast, ovary and uterus cells to rising and falling levels of the female steroid hormones. Most of the time "receptor" refers to one of the molecular typ.

Question 9

what receptors do benzos affect?

Accepted Answer

GABA: Benzodiazepines all effect GABA receptors primarily

Question 10

how does an insulin receptor function?

Accepted Answer

Lets sugar into cell: The Insulin receptor opens a channel to allow glucose into the cells for energy to maintain their function.

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Doctor answers about:

H2 receptor blocker

A member asked:

Which is the most potent histamine h1 receptor blocker that causes serious sedation?

A member asked:

Is there a androgen receptor blocker that only bind to pituitary?

A member asked:

What's the most popular angiotensin receptor blocker and why is it the most prescribed? how do doctors decide which arb to prescribe?

A member asked:

When i take my angiotensin receptor blocker in the morning i get extreme anxiety, and when i take it at night it actually makes me sleepy. doesn't make sense. on drugs.com people complain about anxiety from arbs why is that?

A member asked:

What happens if someone with normal blood pressure of 120/80 takes an angiotensin receptor blocker daily, with an average reduction of 8 systolic/5 diastolic would it make them sick or damage their heart?

A member asked:

Is it possible that when you give someone valsartan or any other angiotensin receptor blocker their sympathetic nervous system gets more activated and they become more hyper aroused in response to emotional stressors?

A member asked:

What do h2 receptors in the heart do?

A member asked:

What is the definition or description of: receptor?

A member asked:

What receptors do benzos affect?

A member asked:

How does an insulin receptor function?

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