Nurse Autumn Intactivist NFP replied: "Yes
Metoprolol (Lopressor, Toprol) is a beta-blocker, which is used for hypertension (high blood pressure)
Some of the side effects that that involve the Central nervous System include: Dizziness, Fatigue, Insomnia, Increased Dreaming, and mental depression. Those don't sound very conducive to studying!"
dukefan13 replied: "Your doc is a wac job.....As an ICU nurse......I've never heard of using metoprolol for studying it is for blood pressure, and it also lowers your heart rate. Do you even know what your baseline bp and hr are?.....If you don't ..DO NOT take this medication..........tell your doctor he has prescribed you a medicine out of context!"
How does metoprolol actually work, don't quite understand? I have a Rx for it, for High Blood Pressure, and tachy heart.
I have read that it blocks beta-1, receptors, all over the body, including the heart?
What does this mean? Does it completely block adrenaline, or does it sort of antagonize the release of adrenaline?
And could it be the cause of my anxiety, because I have chronic tachycardia?
Az R replied: "Yes, there are beta receptors all over the body.
The primary purpose of a beta blocker, like metoprolol is to block vasoconstriction. There are beta receptors in the smooth muscle that lines blood vessels. When these receptors are activated, either by norepinephrine, or epinephrine, the smooth muscle contracts, and blood pressure goes up.
There are also beta receptors in the kidney - in these, metopolol's effect is to increase the secretion of renin, part of how the body regulates blood pressure. This also lowers blood pressure. Metopolol favors doing this rather than working on smooth muscle, because in the kidney there are beta1 receptors, and the smooth muscle is beta2.
How it works on a molecular level, is you have a beta receptor sitting on a cell. The beta blocker comes in and sticks to it. While the beta blocker is on there, the norepi or epi molecule can't turn on the receptor. It can't completely block these signals, because there are untold thousands of beta receptors, and the metopolol molecules fall on and off. Basically - it blocks some of the adrenaline, but not all of it.
While beta blockers can have cognitive symptoms, anxiety is not usually one of them. Beta blockers are actually very frequently used to treat performance anxiety, or stage fright.
Tried to keep that in simple terms, but if you need more clarification, feel free to ask, or email me."
John de Witt replied: "You'll want to google more on the adrenergic system, Which has alpha1, alpha-2, beta-1 and beta-2 components (there's a beta-3, as well, but it's less important for our purposes here). Metoprolol is a non-selective beta blocker but doesn't block alpha effects. That means if you take alpha-adrenergic agonists, such as the popular nasal decongestants (cocaine is also popular, but we'd assume that doesn't apply), the beta blockade plus the alpha agonist sometimes leads to shockingly high blood pressures, just the opposite of what you're hoping for."
Why does metoprolol make me feel dizzy sometimes? I've been taking metoprolol for six days and it never made me as dizzy as it did this morning.
cardboard cowboy replied: "Metoprolol is a "beta blocker" which blocks the actions of certain hormones. It tends to slow down the heart rate and relax blood vessels and so is generally used to treat high blood pressure, irregular heart beats, or to prevent heart attacks but it has other uses also.
You should call your doctor's office. Dizziness could be a sign that you are having unwanted side effects, or that it may be working "too well". It may pass with time, but you should definitely let your doctor know. They are the one that knows your condition best."
labellavita_926 replied: "Obviously I'm not exactly sure what you're taking the metoprolol for, but I did find this:
"Beta blockers are used by many doctors to treat POTS and (NMH). I have heard of more bad drug reactions to beta blockers than any other drugs used for the treatment of POTS and NMH, especially for those patients who have NMH secondary to Chronic Fatigue Syndrome."
Like the person above me answered, maybe it took a few days, but now it sounds like you are having some icky side effects to the drug. Here's a page that talks about other meds for the condition/conditions that I'm assuming you have.
Good luck! And if you'd like anyone to talk to, I am here. I recently failed miserably at my tilt table test, and I'm awaiting my appt/diagnosis from my neurologist, but I believe it is POTS. It can be scary, but don't worry.. a lot of others have gone through the same thing, and we can all be ther for each other :)"
When taking metoprolol is it bad for you to drink alcohol? How about painkillers? if it is bad for you, how bad is it?
Michael A replied: "you mean aside from the fact that it can kill you? I need some painkillers and tranquilizers to get off the booze but doctors don't prescribe them for inebriated patients. I'm doing all I can but I'm still drinking beer. Lots of it and taking medication too."
Michelle S replied: "its always not a good thing to mix prescribed med with alcohol... Avoid drinking alcohol, which could increase drowsiness and dizziness while you are taking metoprolol, it may lead to low blood pressure or oversedation.. combination pain killers which contain NSAIDs (Non-steroidal anti-inflammatories), may reduce the medication's effectiveness in reducing high blood pressure."
belfus replied: "no, there's no interactions between metoprolol and alcohol nor pain medications. you probably shouldn't mix the alcohol and narcotic painkillers though."

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