Buspar - Buspirone HCl

For the most part in order to buy buspar and other anti depressants and anxiety medication, you need to a legitimate prescription before you can get the drug. Unfortunately that is not always the case. Buspar is an FDA approved drug that is used for treating depression and anxiety that is brought on by depression. Buspar joins many other common anti depressants like Prozac, Paxil and Zoloft. Buspar is a doctor prescribed medication that you can’t buy without a doctor’s approval; however that doesn’t seem to stop a lot of people from buying the drug from online sources that do not require a prescription. These days you do not seem to ever need a prescription to buy prescription drugs because the internet has made it so that all you really need is a credit card. This can be a very dangerous thing because it allows people to medicate themselves to a certain point. When you buy buspar over the internet, you have to make sure that you are buying it from a domestic retailer because as secure as the government tries to be, they cannot control what drugs are being sent to you from overseas locations. This is a serious problem because when you order from a foreign supplier, you may not be getting what you asked for and that can be very harmful or even fatal. Buspar has its own side effects that can be harmful or even fatal without getting other drugs that can cause harmful interactions with any drugs that you may already be taking. If you suffer from clinical depression or if you believe that you may be suffering from it, you should contact your doctor and let him or her prescribe the right medication for you rather than trying to buy Buspar yourself because only your doctor can prescribe the right dosage that you should be taking or give you something different all together which may be less harmful to you than buspar. Not every one can take Buspar and only your can tell you if you are one of those people or not. Trying to medicate you is a very dangerous thing to do. The safest way for you to buy buspar is through your doctor, however, if you feel that you must buy it yourself, you should always do it with a prescription first so that you are at least getting the right dosage for you.

Pharmacology: Buspirone is a psychotropic drug with selective anxiolytic properties which belongs chemically to the class of compounds known as the azaspirodecanediones, not chemically or pharmacologically related to benzodiazepines.

Buspirone shares some of the properties of the benzodiazepines and the neuroleptics, as well as demonstrating other pharmacological action. Buspirone attenuates punishment suppressed behavior in animals and exerts a taming effect, but is devoid of anticonvulsant and muscle relaxant properties and does not bind to the benzodiazepine/GABA receptor complex. Buspirone affects a variety of dopamine mediated biochemical and behavioral events, but is free of cataleptic activity. Buspirone has an affinity for brain D 2-dopamine receptors, where it acts as an antagonist and agonist, and for the 5-HT 1A receptors, where it acts as an agonist. Buspirone does not block the neuronal reuptake of monoamines and, on chronic administration, it does not lead to changes in receptor density in the models investigated. However, the mechanism of action of buspirone remains to be fully elucidated.

Buspirone is rapidly absorbed in man and undergoes extensive first pass metabolism. Following oral administration, low peak plasma levels of unchanged drug, of 1 to 6 ng/mL were observed 40 to 90 minutes after a single 20 mg dose. In a number of studies performed in healthy volunteers, the mean half-life of buspirone ranged from 2 to 3 hours up to approximately 11 hours with considerable variation in individual values. Multiple dose studies suggest that steady-state plasma levels were usually achieved within a few days. Buspirone is metabolized primarily by oxidation, which in vitro has been shown to be mediated by cytochrome P450 3A4 (CYP3A4), producing several hydroxylated derivatives and a pharmacologically active metabolite, 1-pyrimidinylpiperazine (1-PP). In animal models predictive of anxiolytic potential, 1-PP has about 25% or less of the activity of buspirone. Peak plasma levels of 1-PP have been found to be higher than those of its parent drug and its half-life to be approximately double that of unchanged buspirone. In a single dose study using 14C labeled buspirone, 29 to 63% of the dose was excreted in the urine within 24 hours, primarily as metabolites, while fecal excretion accounted for 18 to 38% of the dose. In man, approximately 95% of buspirone is plasma protein bound. Other highly bound drugs, e.g., phenytoin, propranolol and warfarin, are not displaced by buspirone from plasma protein binding in vitro at clinically relevant concentrations. However, in vitro binding studies show that buspirone does displace digoxin.

The effects of food upon the bioavailability of buspirone have been studied in 8 subjects. The results of this study suggest that food does not significantly affect the absorption of buspirone, but it does decrease first-pass metabolism. This results in increased bioavailability of unchanged buspirone; the clinical significance of this finding is unknown.

Buspirone had no effect on hepatic microsomal enzyme activity when administered to rats for 5 days. In man, the effect of buspirone on drug metabolism or concomitant drug disposition has not been studied. Buspirone clearance is reduced in patients with hepatic impairment as well as in patients with impaired renal function. No significant difference in buspirone pharmacokinetics as a function of age and/or sex was found.