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Propranolol Hydrochloride is a synthetic beta-adrenergic receptor blocking agent chemically described as 2-Propanol, 1-[(1-methylethyl)amino]-3-(1-naphthalenyloxy)-, hydrochloride,(±)-. Its molecular and structural formula:β-agonist Powder

Propranolol Hydrochloride Oral Solution is available for oral administration containing either 20 mg per 5 mL or 40 mg per 5 mL of propranolol hydrochloride USP. The oral solution contains the following inactive ingredients: citric acid anhydrous, crème de menthe flavor, disodium edetate, methyl paraben, propylene glycol, propylparaben, purified water, saccharin sodium, sorbitol solution and strawberry flavor.

Propranolol is a nonselective beta-adrenergic receptor blocking agent possessing no other autonomic nervous system activity. It specifically competes with beta-adrenergic receptor agonist agents for available receptor sites. When access to beta-receptor sites is blocked by propranolol, the chronotropic, inotropic, and vasodilator responses to beta-adrenergic stimulation are decreased proportionately. At dosages greater than required for beta-blockade, propranolol also exerts a quinidine-like or anesthetic-like membrane action, which affects the cardiac action potential. The significance of the membrane action in the treatment of arrhythmias is uncertain.

Mechanism of Action

The mechanism of the antihypertensive effect of propranolol has not been established. Factors that may contribute to the antihypertensive action include: (1) decreased cardiac output, (2) inhibition of renin release by the kidneys, and (3) diminution of tonic sympathetic nerve outflow from vasomotor centers in the brain. Although total peripheral resistance may increase initially, it readjusts to or below the pretreatment level with chronic use of propranolol. Effects of propranolol on plasma volume appear to be minor and somewhat variable.

In angina pectoris, propranolol generally reduces the oxygen requirement of the heart at any given level of effort by blocking the catecholamine-induced increases in the heart rate, systolic blood pressure, and the velocity and extent of myocardial contraction. Propranolol may increase oxygen requirements by increasing left ventricular fiber length, end diastolic pressure, and systolic ejection period. The net physiologic effect of beta-adrenergic blockade is usually advantageous and is manifested during exercise by delayed onset of pain and increased work capacity.

Propranolol exerts its antiarrhythmic effects in concentrations associated with beta-adrenergic blockade, and this appears to be its principal antiarrhythmic mechanism of action. In dosages greater than required for beta-blockade, propranolol also exerts a quinidine-like or anesthetic-like membrane action, which affects the cardiac action potential. The significance of the membrane action in the treatment of arrhythmias is uncertain.

The mechanism of the antimigraine effect of propranolol has not been established. Beta-adrenergic receptors have been demonstrated in the pial vessels of the brain.

The specific mechanism of propranolol’s antitremor effects has not been established, but beta-2 (noncardiac) receptors may be involved. A central effect is also possible. Clinical studies have demonstrated that propranolol is of benefit in exaggerated physiological and essential (familial) tremor
Propranolol is highly lipophilic and almost completely absorbed after oral administration. However, it undergoes high first-pass metabolism by the liver and on average, only about 25% of propranolol reaches the systemic circulation. Peak plasma concentrations occur about 1 to 4 hours after an oral dose.

Administration of protein-rich foods increase the bioavailability of propranolol by about 50% with no change in time to peak concentration, plasma binding, half-life, or the amount of unchanged drug in the urine.

Distribution

Approximately 90% of circulating propranolol is bound to plasma proteins (albumin and alpha1 acid glycoprotein). The binding is enantiomer-selective. The S(-)-enantiomer is preferentially bound to alpha1 glycoprotein and the R(+)- enantiomer preferentially bound to albumin. The volume of distribution of propranolol is approximately 4 liters/kg. 
Oct 22 '19 · 0 comments
1. Indapamide is a thiazide-like diuretic drug marketed by Servier, generally used in the treatment of hypertension, as well as decompensated heart failure. Combination preparations with perindopril (an ACE inhibitor antihypertensive) are also available.Indapamide powder

2. White needle crystal or crystalline powder, odorless, tasteless. It is almost insoluble in water or dilute hydrochloric acid, while it can be dissolved in ethanol or ethyl acetate, and it is soluble in acetone, acetic acid, slightly soluble in chloroform or ether.

3. Indapamide is currently the most popular non-prescription diuretic antihypertensive drug with good efficacy, stable blood pressure, fewer side effects, etc.
1. Indapamide have diuretic and calcium antagonist dual effect by inhibiting the proximal end of the distal convoluted tubule Na+ reabsorption, resulting in diuresis, while by blocking Ca2+ influx especially a higher selectivity for vascular smooth muscle to dilate the small blood vessels of the outer periphery, resulting in antihypertensive effect. But the effect to vascular smooth muscle is stronger than the diuretic effect.

2. It can lower blood pressure with lower dose compared to diuretic effect. Higher dose will display diuretic effect. But there is no disadvantage compared to thiazide diuretics, that it does not cause orthostatic hypotension, flushing and reflex tachycardia, nor blood lipids, glucose metabolism and renal function.

Indapamide Application
1. This medication is used to treat high blood pressure. Indapamide is also used to reduce extra salt and fluid in the body (edema) caused by a certain heart problem (congestive heart failure). Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Decreasing extra salt and fluid in the body helps to decrease swelling and breathing problems from congestive heart failure and increases your ability to exercise.

2. Indapamide is a "water pill" (diuretic) that increases the amount of urine you make. Getting rid of extra water and salt may help to relax the blood vessels so that bloodcan flow more easily. These effects help to lower blood pressure and decrease the amount of work the heart must do to pump blood.  
Oct 22 '19 · 0 comments
White needle crystal or crystalline powder, odorless and tasteless. Almost insoluble in water or dilute hydrochloric acid, soluble in ethanol or ethyl acetate, soluble in acetone, acetic acid, slightly soluble in chloroform or ether.β-agonist Powder

Indapamide is an over-the-counter diuretic antihypertensive drug commonly used in China, which has the advantages of good efficacy, stable antihypertensive and less side effects.

Indapamide has dual effects of diuresis and calcium antagonism. By inhibiting Na+ reabsorption at the proximal end of the distal convoluted tubule, it can produce diuretic effect and block Ca2+ internal flow. It is highly selective to vascular smooth muscle, so as to dilate peripheral small blood vessels and generate antihypertensive effect. But the effect on vascular smooth muscle stronger diuretic effect, below the diuretic doses can step-down, higher doses showed diuretic effect, but no thiazide diuretic shortcomings, namely not cause orthostatic hypotension, flush and reflective tachycardia, on blood picture, metabolism of blood fat, sugar and renal function also had no obvious effect, therapeutic doses of heart rate, cardiac output, no significant changes in electrocardiogram (ecg) were on the central nervous system and plant nerve has no obvious effect. The antihypertensive effect was produced by oral administration for 2 ~ 3h and maintained for 24h. The diuretic effect appeared for 3h and reached the maximum effect for 4 ~ 6h. Different from other diuretics, this product has high lipid solubility. After oral absorption, the plasma concentration of liver and kidney is the highest, while the concentration of heart, lung, muscle and fat is lower. This product is mainly excreted from the kidney by metabolites and 5% prototype. Indapamide is suitable for mild and moderate primary hypertension, can also be used for congestive heart failure caused by water sodium retention, with renal failure are also applicable to the patients with high blood pressure, diabetes, hyperlipidemia, use antihypertensive effect is remarkable, and beta blockers used curative effect is better, because this drug has diuretic effect, can cause hypokalemia, can complement potassium at the same time.
Oct 22 '19 · 0 comments
Many people are looking for ways to improve their performance both at home and at work. The brain is one of the critical organs in the body, and for you to function correctly, your mental health should be taken care of at all times. For many years people have been using nootropics to enhance their brainpower, memory, mental alertness, cognitive skills, and concentration. Aniracetam powder (72432-10-1) is one of the potent nootropic supplements on the market today, which has proven to be essential in boosting concentration, reduce anxiety as well as improve the overall brain health.Aniracetam powder

Nootropics, commonly known as smart drugs, is a growing medication industry, and some of the medications are still being developed. Aniracetam powder buy belongs to the racetam nootropic family, and the drugs in this group have proven to be very vital in boosting memory and cognitive functions.

This nootropic powder is available online or in the nearest physical pharmacy. However, it’s advisable to always go for medical examination before you start taking these smart drugs such as aniracetam. Overdosing or misusing any of the nootropics can result in severe side effects which might be expensive to reverse.

However, nootropics in the racetam family are known for having minimal or zero side effects when used correctly. The aniracetam dosage should be set by a medical professional for better results. Nootropics such as aniracetam or any other can be taken alone or stacked with other drugs for maximum benefits. Some companies and researchers are still doing medical studies to find new nootropic supplements and other areas where the drugs can be useful. Depending on what you need to achieve, your doctor will prescribe the best nootropic supplement for you

Aniracetam and Racetam
Aniracetam is among the first nootropics to be discovered, and it belongs to the racetam family of smart drugs. After the development of the first-ever nootropic powder known as piracetam which was created in the early 1960s, medical researchers continued with the study on its effects, which led to changes in the piracetam chemical structure.

The chemical structure changes in the piracetam resulted to the creation of nootropic aniracetam. In 1970, the Belgian pharmaceutical company Hoffmann-La Roche created the nootropic aniracetam, which was made to enhance brain performance as well as help in the treatment of cognitive issues.

On the other hand, Racetam is a class of synthetic substances that mainly help in boosting your brain health by supplying nutrients and chemicals that your brains need to maintain cognitive excellence and alertness. Some of the nootropic supplements in the racetam family include aniracetam, piracetam, Phenylpiracetam, and Oxiracetam. All racetams work almost in the same way and are potent when it comes to enhancing overall brain health.

However, some smart drugs in this family might have some advantages over others, and they can also be used together for quick and maximum benefits. The dosages also vary from one racetam drug to another, depending on what you need to achieve by the end of the dosage cycle. Consult with your doctor for more information about the relationship between aniracetam and racetam.

How Does Racetam Work?
Generally, racetams activate both acetylcholine and glutamate receptors which are vital elements in the body, especially for boosting cognition and aid the overall physical activities of your body organs. Glutamate is a dominant neurotransmitter in your body, mostly in the brain and central nervous system. It plays a vital role in boosting the brain function, which leads to a neurological message transmitted via the neural circuit. On the other hand, glutamate also helps in the metabolism of gamma-aminobutyric acid (GABA) substance that acts as a brake on the system, which weakens the probability of neural communication.

Acetylcholine is a neurotransmitter which is essential in enhancing the intrabody communication that governs the cognition, and muscular efficiency more so in the area of memories and learning. It is a vital player in the parasympathetic nervous system that helps the human brain to cycle and process through the stress. Different studies have shown that regulating the performance and acetylcholine and optimal glutamate levels can help in boosting the way both brain and nervous system work.
Oct 22 '19 · 0 comments
Fasoracetam Nootropic Powder Fasoracetam for Brain Improvement



Best Nootropics Fasoracetam Powder is a nootropic compound in the racetam family of nootropics. Racetams encompass a large group of different compounds, all modified from the parent compound Piracetam, which was discovered in the 1960s. Fasoracetam's chemical name is: (5R)-5-(piperidine-1-carbonyl) pyrrolidin-2-one.

Fasoracetam's structure is fairly different than other racetams, with the acetamide grouping off the 5 position of the 2-Pyrrolidone ring, rather than the open nitrogen off the 1 position like other racetams in its family. In addition to that, it has an added piperidine grouping off the acetamide. Fasoracetam has a molar mass of 196.25 g/mol and a molecular formula of C10H16N2O2.

Memory Retention
Fasoracetam works with the chemicals already in your brain such as Acetylcholine and Choline to give you better neuroprotection. Like many other in the racetam family, Fasoracetam is said to have qualities that assist in memory retention. After taking this super drug, you may experience a better memory recall and find yourself able to maintain the knowledge that you gather. It also helps reduce the expected loss of mental acuity associated with later years in life.

Mood Enhancement
This highly-regarded super drug can help your mood over time. It is constantly working to up-regulate the GABA (B) receptors. Low GABA (B) receptor functions contribute to symptoms of major depression. [4"> It is suggested that GABA(B) receptor antagonists may represent a new class of antidepressant compounds. (5) This is big news for anyone suffering from anxiety disorders and depression. Fasoracetam might be for you if you often experience social anxiety or find yourself lagging day to day. Reduce levels of stress while promoting a general feeling of well-being throughout the day.

Fasoracetam (NS-105/LAM-105) is a relatively new Piracetam-like nootropic, which, as the name suggests, belongs to the racetam family of nootropics. Fasoracetam is a very potent racetam with a great potential as a cognitive enhancer. It has a chemical structure of (5R)-5-(piperidine-1-carbonyl) pyrrolidin-2-one and was originally developed by a company called Nippon Shinyaku in search for the treatment of Alzheimer's disease.

Fasoracetam is highly attractive to college students and anyone who has a fast-paced life that calls for multi-tasking. Many want to get ahead, retain more information, maintain the knowledge they gather and have a good recall of everything that they need to recall.
Oct 22 '19 · 0 comments
This supplement is a fat soluble member of the Racetam family that was initially developed in Belgium during the 1970's.
It is actually derived from the original Racetam, but has an increased potency (it is up to thirty times as strong as Piracetam).Pramiracetam has become a very popular Nootropic supplement and is used in many different countries.pramiracetam

In some cases it is even prescribed for medical use, although it is more commonly taken with the expectation of helping to improve memory and cognition.

Applications:

Pramiracetam is a lipid-soluble moleculte and a exhibits a high-affinity choline uptake (HAUC)--thus, supplementation with choline or cholinergic substances (e. G. Alpha GPC) is recommended. [medical citation needed"> Pramiracetam has a similar chemical structure to aniracetam but is 15-30 times stronger than aniracetam and the majority of racetam derivatives (e. G. Oxiracetam). [medical citation needed"> Pramiracetam is thought to increase the long term memory of users and is used in the treatment of Alzheimer's disease. Although the mechanism underlying this response has not been fully elucidated, an increase in neuronal membrane fluidity has been posited as a potential mode of action.
Users typically take Pramiracetam powder in doses around 250 mg a few times a day with meals. As with most racetams, many people take a choline source along with it. Some say taking choline along with the proper Pramiracetam dosage can improve the overall experience.
Oct 22 '19 · 0 comments
Galantamine Hydrobromide mainly for the treatment of poliomyelitis (poliomyelitis) sequelae, muscle atrophy and myasthenia gravis. Can also be used for children with cerebral palsy, traumatic sensory dyskinesia, polyneuritis and spinal nerve root inflammation.galantamine nootropic
Galantamine belongs to a class of drugs called cholinesterase inhibitors. A class of drugs refers to medications that work similarly. They have a similar chemical structure and are often used to treat similar conditions.

The cause of Alzheimer's disease isn't fully understood. People with this disease have low amounts of a chemical acetylcholine in their brains. A decreased amount of acetylcholine has been linked to dementia. Galantamine works to prevent the breakdown of acetylcholine. This increases the concentration of the chemical in the brain, and may help decrease the symptoms of dementia.

This drug may not work as well when Alzheimer's disease gets worse. There is no evidence that galantamine prevents Alzheimer's disease from getting worse.
Galantamine Hydrobromid Application:

This product is anticholinesterase drugs, a weaker anticholinesterase role, through the blood-brain barrier, so the role of the central nervous system is relatively strong. The obstruction of nerve and muscle conduction recovery, improve the various peripheral neuromuscular disorders paralysis.

The treatment of a wide range of less toxic, more tolerable patients. Clinical mainly for the treatment of poliomyelitis (poliomyelitis) sequelae, muscle atrophy and myasthenia gravis. Can also be used for children with cerebral palsy, traumatic sensory dyskinesia, polyneuritis and spinal nerve root inflammation.
Oct 22 '19 · 0 comments
Product name: Galantamine Hydrobromide
Assay: 99%
CAS NO.: 1953-04-4
Use: Treatment of Polio sequelae
molecular formula C17H21NO3.HBr
molecular weight 368.27
Specification: Tablets, capsules, powder
Appearance: white powder
Galantamine is an alkaloid that is obtained synthetically or from the bulbs and flowers of Galanthus caucasicus (Caucasian snowdrop, Voronov's snowdrop), Galanthus woronowii (Amaryllidaceae) and related genera like Narcissus (daffodil), Leucojum aestivum (snowflake), and Lycoris including Lycoris radiata (red spider lily).
Clinical mainly for the treatment of poliomyelitis (poliomyelitis) sequelae, muscle atrophy and myasthenia gravis. Can also be used for children with cerebral palsy, traumatic sensory dyskinesia, polyneuritis and spinal nerve root inflammation.galantamine powder
Application:
This product is anticholinesterase drugs, a weaker anticholinesterase role, through the blood-brain barrier, so the role of the central nervous system is relatively strong. The obstruction of nerve and muscle conduction recovery, improve the various peripheral neuromuscular disorders paralysis.

The treatment of a wide range of less toxic, more tolerable patients. Clinical mainly for the treatment of poliomyelitis (poliomyelitis) sequelae, muscle atrophy and myasthenia gravis. Can also be used for children with cerebral palsy, traumatic sensory dyskinesia, polyneuritis and spinal nerve root inflammation.

This product is anticholinesterase drugs, a weaker anticholinesterase role, through the blood-brain barrier, so the role of the central nervous system is relatively strong. The obstruction of nerve and muscle conduction recovery, improve the various peripheral neuromuscular disorders paralysis.

The treatment of a wide range of less toxic, more tolerable patients. Clinical mainly for the treatment of poliomyelitis (poliomyelitis) sequelae, muscle atrophy and myasthenia gravis. Can also be used for children with cerebral palsy, traumatic sensory dyskinesia, polyneuritis and spinal nerve root inflammation.  
Oct 22 '19 · 0 comments
Connect with a VPN before logging in to Facebook!
It is clear that Facebook currently is one of the most popular social media platforms: literally 1.7 billion people have an account. But this size brings also a number of disadvantages with it, as well as risks against which you’d better protect yourself as a user.

To what extent are Facebook data really private and what can you do in order to improve your online safety and privacy via the platform? These are questions that require a clear answer.

Social media know more than you think
The platform is, besides a social media platform, also simply a breeding ground of information about the users. Whether they are shared with others via chat, or they simply stay on your profile as supplementary information, the data is visible and thus also not protected.

But social madia also keep track of other data. This way, it is always known which pages exactly you like, what you have shared, etc. On the basis of these, the platform knows what are your interests are and what you are involved in. Even if you aren’t logged in anymore, the platform still follows you. Cookies that collect information about your behavior on the Internet always end up on your computer, tablet, or smartphone.

Why and how the platform uses personal information
As soon as certain information about your interests and purchases has been gathered, the ads that you get to see on the platform are also adapted to it. Facebook has quite a few sources of income, but placing ads is the largest one. This is also why the platform can afford to be free of charge. If you have searched information about a new car the past few days, then you may well promptly get to see ads that correspond to this.


Getting back at social media with a VPN connection
Although the way Facebook (and also quite a few other social media and search engines such as Google) works is indeed legal, it is of course not nice knowing that you are always being followed. You are never really sure anymore about privacy and online security because who knows which personal data they have?

Getting ads to see is annoying, to say the least, and in the worst case, an invasion of privacy. Many people look for ways to circumvent this and choosing a VPN is undoubtedly the best measure you can take. A VPN, or virtual private network, gives you the option to go “underground” as a user of the Internet, by which your browsing data and history remain hidden, so to speak.

What exactly does a VPN connection do?
A VPN connection actually uses already existing Internet connections but encrypts the data that you send via your connection. This way, even hackers can’t do anything with it, because, even they intercept this information, they can’t figure out the encryption.

A VPN connection actually hides your real Internet address (your IP address), by which your online identity remains unknown. Also your geographic location remains anonymous, so government authorities and hackers can’t know where exactly you are. In this way, also no ads can be placed on the basis of your searches on the Internet: this information is simply unknown.
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Oct 22 '19 · 0 comments
Whether you’re a year abroad studying or you are traveling for a period of time to, there are certain times when you would like to call home. Skype is a very popular method for this and the term “I’ll Skype you soon” has become such a standard into our vocabulary that the popularity of Skype does not need any additional selling points.
Unfortunately, Skyping is not possible in every country, because there are certain countries or regions that have blocked these servers for internet users in that country. This can be quite frustrating when you find out that often alternative methods of communicating with the home front are also blocked. But why is it banned in some countries? Also read: How to unblock your Skype?
Commercial reasons
In the majority of cases, the blocking of the free telephone service a commercial reason. In most countries in Central and South America it is blocked because at the same time, the ISPs in those countries are also the provider of telephone services. And considering it is a way to make free calls worldwide, makes it direct competition. In order to prevent a loss of income they just block it.
Legal reasons
In countries like Egypt, there is another reason why the program is blocked. The online phone service is known for the fact that they are independent and they promote a “no phone tracking” policy. In other words, your call can not be traced. In Egypt, on the other hand they have an official rule in which they block everything that cannot be traced or monitored. Including Skype.
Skype too expensive for the country
In Cuba, on the other hand there is a poor internet infrastructure and computer access is very minimal. The expensive cost for the country to have Skype is not interesting enough because of the slow internet.
Bypassing blocks
Don’t just give up because you’re in a country which geographically blocks Skype. Using a VPN or virtual private network can quite easily circumvent the block and still skype with your family or friends. Such a private connection ensures a safe, encrypted internet connection without a location restriction. You can choose from a long list of servers located in the US or in Europe. Also read: Unrestricted access to websites with a VPN connection.

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Oct 22 '19 · 0 comments
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