Viagra (sildenafil citrate) is most common drug used across the globe for treatment of erectile disfunction. It is a citrate salt of sildenafil by chemical composition and fall in to the class of PDE-5 inhibitor drugs. It is a selective cyclic guanosine monophosphate (cGMP) inhibitor. Its solubility is 3.5 mg/ml in H20 and has a molecular weight of 666.7. it is a diamond shaped, blue colored tablet. Available dosages are 25 mg, 50mg and 100 mg. it is chiefly used orally and contains inactive ingredients like hypromellose, titanium dioxide, anhydrous dibasic calcium phosphate, croscarmellose sodium, microcrystalline cellulose, lactose, triacetin, and FD & C Blue #2 aluminum lake.
Standard dosage for oral administration is 50 mg. However, dosage varies from 25 mg to 100 mg based on the patient's tolerance and other medical parameters. Dosing frequency not to be exceeded once a day. Consumption of Viagra prior or later to meal doesn't make any difference in performance. It is advised to consume between half an hour to four hours prior to sexual action.
It is medically recommended to take 50 mg dosage for a first-time user and henceforth dosage to be increased or decreased gradually based on doctor's advice. 100 mg dosage is generally recommended in certain special cases but self-administration without prior consultation of doctor is strictly prohibited. 25 mg dosage is generally prescribed for patients with prior medical history (heart ailments) or if patient is on certain special medication like HIV drugs or alpha blockers or if patient has a history of high blood pressure. In such cases the combination of Viagra of 50 mg or higher with the prior medication might have catastrophic effect on patient's health and ae thus prescribed the lowest available dosage.
Weight is not a factor in Viagra dosage except in certain cases like diabetes or high obesity in which cases it is advised to consult a doctor prior to consumption. Age is an important factor and Viagra should not be consumed if the patient is below 18 years of age.
Strength of dosage to be strictly administered by certified physician for over dosing can have serious detrimental effects on health. It has been medically recorded that overdosing makes the patient vulnerable to side effects of Viagra which can lead to severe conditions like priapism, hypotension (extremely low blood pressure), and can cause permanent irrevocable damage to penis. Furthermore, cases have been recorded where overdosing had led to cardiac arrest (myocardial infarction) and even death. Thus, over dosing is strictly prohibited. in case of an accidental overdose the patient must seek immediate medical assistance.
Furthermore, combining Viagra with other similar drugs used for treating erectile dysfunction (like Kamagra) is strictly advised against. It has been medically proven that consumption of more than one medication used for treating erectile dysfunction makes the patient more susceptive to the grave side effects of the drugs which can be fatal.
Additionally, for patients with liver and kidney problems starting dose not to be increased more than 25 mg for consumption of Viagra also increases the plasma levels of sildenafil.
The dosages for the Viagra, like all other drugs, must be truly taken into account, as for the dosages may be really different for each of the individuals, this may vary accordingly to the very unique health issues, along with the responses of the patient's different organs that will take in the Viagra.
The regular prescribed dosage for the Viagra would be 50mg taken an 1 hour before the anticipated sexual activities. Even the label for Viagra states that the Viagra could be taken at anytime from a half an hour up to 4 hours before any sexual activities. It would all depend on how the Viagra works in the patient's body.
Once you have taken Viagra, it breaks down and then will excrete it in to the feces, and also through your urine. The half-life of the Viagra has been about 4 hours.
Other important aspects on the intakes and the uses of the Viagra, is the individuals on the medication for either liver or kidney problems or even them undergoing the dialysis for the kidney, their dosage should be very strictly followed under specific instructions by their doctor, as the conditions could be more than likely the affect of Viagra usage.
Chemistry of the Viagra drug does reveal that it is absorbed into the blood stream. The maximum time frame that it is observed for the concentration would range from 30 minutes up to 120 minutes when taken orally.
Viagra is about 40% bio that is available, and has the protein content of about 96%.
It is advised when taking Viagra it will need to be accompanied by a very rich calorie diet that would be containing very high fat and very high protein contents. The absorbency when taking with a low fat diet would be reduced greatly.
Viagra is a prescribed medicine which is used to treat impotence and erectile dysfunction in men. Viagra works by enhancing the blood circulation in the penis so that a man gets and maintains an erection during sexual stimulation or arousal. Sildenafil is the active ingredient present in Viagra and the recommended dosage varies from 25mg – 100mg per pill.
The impact of Viagra is different in different men. Generally, it is believed that Viagra shows its effect in almost 30 minutes of the intake of the drug in the majority of the people. It is essential to keep in mind that only the intake of Viagra won't lead to an erection. It must be consumed in combination with other types of sexual arousals and stimulations (tactile, visual or some other) so that an erection occurs.
Erectile dysfunction is a common problem that men have been suffering from centuries. When a man is not able to perform sexually, he is suspected of suffering from erectile dysfunction. In this condition, men have difficulty in even achieving and retaining their erection. It may also take the form of premature ejaculation in many cases. But, researchers all over the world have tried to find out solutions to this grave problem. They have come up with several ED medications. Viagra is one of the popular ED drugs that are used by people all around the world.
Viagra can be availed from any local pharmacy or online store with the help of a prescription. Therefore, it is necessary to visit a doctor before starting any dose of medication. Lowered blood flow is the main reason behind the failure to have a proper erection. By increasing the flow of blood to the genital area, it will help in gaining as well as retaining an erection for a long period of time. But for this to occur smoothly, one must be adequately stimulated as Viagra does not act as an aphrodisiac.
Chemically, Viagra contains Sildenafil as an active ingredient. The dose allowed to patients varies from 25 mg to 100 mg depending on the severity and tolerance. But, the ideal dose for most patients is of 50 mg.
The action may take a while to begin. It slightly varies from one individual to the other. But, in most cases a 30 minutes gap is enough between popping the tablet and sexual activity. However, one must know that only consuming Viagra will not help with achieving a firm erection. Stimulation is extremely necessary in the form of any sense organs (tactile or visual) to facilitate the process. Sexual stimulation helps in triggering the process that sends adequate blood flow to the penis.
This again may vary between different individuals, but statistics show that Viagra can easily work till a period of 5 hours in one go where there is proper stimulation present. But, many men have also said that it wears off in about 2 to 3 hours. There are many factors that may influence the length of the action. Therefore, discussing every detail regarding the medical history will ensure a prescription of the proper dose.
As the efficiency of Viagra depends on many factors, everything should be discussed with the doctor in detail.
The duration of time for which Viagra lasts also varies in different men, but it is thought to show its effects for nearly 5 hours at a go when consumed along with some kind of sexual stimulation. Majority of men will find that the impact of the pill will decrease after 2-3 hours of the intake.
There are some specific factors which indicate that how long will the drug last for in your personal case and one should always talk about the medical history and details of some other drugs that were being consumed before the treatment of ED with Viagra.
The efficiency of Viagra is based on several things. Following are some of them:
There are a lot of impotence treatments available in the modern pharmacy, only a few stand against the desired standards. Some of them are most trusted while others are subject to pass their tests in the high competition of the modern pharmacy. But, Viagra samples of Pfizer pharmaceutical is, unlike all other, of proven quality as it has been curing impotence since 1998 when it was first launched as the first oral medication against impotence in men. Popularly recognized as the blue pill, Viagra samples is the ultimate and final choice of most of the physicians when it comes to give an erectile dysfunction prescription.
It's astounding mechanism of action is simple yet highly effective. Blood vessels supplying the erectile organ, corpora cavernosa of the penis, are responsible for controlling the filling up of penis with blood thus the erection the filling-up gives to the penis. The drug targets the structures of these vessels as to dilate them more and more till they achieve enough room to accumulate blood and supply it to penis to cause immediate erection. cGMP is degraded by a protein enzyme PDE5. Viagra targets the substrate site on PDE5 enzyme and blocks its action leading to continual increase in the concentration of cGMP. Note that the concentration of cGMP is not increased by increasing the synthesis; instead it is increased by reducing its degradation. Due to such a process, the drug action essentially requires initial sexual stimulation.
Flushing, nasal congestion, hearing problems, cyanotic vision, runny nose, digestive impairments and pariapism are some important side effects to be aware of and in case they persist, seek medical assistance in no time to prevent occurrence of permanent loss. Do not over dose the drug by taking the drug above one pill per 24 hours of time. Take the medication half an hour before your sexual interaction and experience the drug action of as long as four hours continuous. Do not co-administer with it any nitrate containing drug otherwise it might accelerate your hypotension potentially nor should you take protease inhibitors and beta blockers. If you have had a strike recently or suffer from cardiovascular problems, full consultation with your doctor is advised before taking Viagra. Do not consume alcohol while using the drug to avoid unexpected results. Indulge in stimulation in case you want the drug action to be fully optimized since the drug action needs sexual stimulation as a trigger.
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Serious side effects have been recorded in certain cases. They are:
Priapism: Emergency medical services are to be consulted if an erection lasts any longer than 4 hours. priapism can cause permanent damage to the penis if immediate medical care is not provided.
Vision loss: in certain cases, decreased blood flow to optic nerves have resulted in loss of vision in eyes with development of called non-arteritic anterior ischemic optic neuropathy (NAION). In such cases consumption of Viagra to be stopped and it is recommended to seek medical assistance as soon as possible.
Auditory impairment: certain cases have been recorded where patients have developed feeling of tinnitus (ringing of ear) or dizziness further leading to sudden hearing impairment. In such cases consumption of Viagra to be instantly ceased and immediate medical assistance should be sought for.
Other side effects include headache, indigestion, impairment or defects in vision or hearing, blurred vision, muscle pain, spasms, rash back pain and in very rare cases heart attack etc.
Viagra is a medication primarily used for treating erectile dysfunction among men. It is a PDE5 or Phosphodiesterase type 5 inhibitor. Its main mechanism is to increase the blood flow to the penis at the time when the body is sexually aroused. This helps the individual to be capable of achieving and maintaining an erection.
This drug was accidently discovered when clinical trials were being conducted for treating high blood pressure. Since the year 1998, it has been formally used for treating ED and its symptoms in many major nations. But, Viagra is a prescription drug. This means that a doctor’s consultation is extremely important when considering erectile dysfunction and its treatment. There are also certain factors that need to be understood in order to make sure that Viagra achieves what it aims to achieve.
It is ideal to use Viagra as it is directed by your health care professional.
Majority of the patients are prescribed a dose of 50 mg which needs to be taken one hour before sex. Depending on the toleration and effectiveness, the dose can either be decreased to 25 mg or increased to 100 mg. The dosage limit for one day is one dose for everybody. For any further clarification, your healthcare professional will be able to guide you.
Viagra is of use only for male adults above 18 years of age.
Dosage varies from 25mg to 100mg with standard dosage being 50mg. Maximum frequency of dosing is once per day. It has been recorded that effect of Viagra generally starts within half an hour to one hour. Consumption of meal before or after taking Viagra doesn’t affect performance except in cases of certain restricted food or alcohol.
Self-administration of Viagra without prior consultation of the doctor is strictly prohibited as it may result in certain harmful side effects.
It is ideal to store Viagra in a temperature of 25 degrees C or 77 degrees F. Storing for a brief period in a temperature ranging between 59 degrees F and 86 degrees F is allowed. Care must be taken to not bring light, heat and moisture in contact with Viagra. Avoid keeping it in the washroom. Keep it strictly away from pets and children.
Sildenafil citrate is present in Viagra as an active ingredient. The active ingredient along with the inactive ingredients combines to treat erectile dysfunction. Some of the inactive ingredients present in this ED medication include:
Consumption of Viagra is prohibited in the following cases:
Prior consultation of doctor before consumption of Viagra is recommended as in very rare cases serious incidents like heart attack has been reported.