A drug is injected directly into the shaft of the penis prior to a man having sexual intercourse. Although it sounds a bit worrying it is easy to learn.

The medication usually works within about 15 minutes. Even though many men may be uncomfortable injecting themselves, expert believe injections are perhaps the fastest method for men with E.D. to achieve an erection.

The most popular E.D. injection used today is called “Caverject”. This method involves a small-needle injected into the corpus cavernosum in the penis and by relaxing smooth muscle tissue it in turn enhances the blood flow to the penis, creating an erection. Typically doctors prescribe the injection for men with E.D. that is neurological, vascular, and psychological or of mixed origin.

Men treated with Caverject receive initial injections from medically-trained personnel to determine optimum dosing from 5 mg to 20 mg. Up to 60 mg can be injected at one time and Caverject can be administered by the patient himself once he has been trained to self-inject. The syringes are self-contained, easy to use and also come with a kit that contains the alcohol wipes used before and after to clean the penis.

It should be noted that Caverject may cause mild pain, irritation or slight bleeding at the injection site and also a possibility of tenderness or swelling of the penis as well as redness, lumps, or an unusual curving of the penis.

Medical researchers have agreed that P.E. is not a symptom of illness or disease, which is a relief to men. Today, the experts are split on the causes of P.E. Some believe P.E. is a physical condition and not emotional condition, while other researchers believe that P.E. is caused by some type of emotional apprehension.

Often times, P.E. may be caused by the location where sex is occurring. For instance, having sex in a rush or in a place without privacy may cause P.E. to occur.

Other researchers believe that P.E. in some men may be due to a chemical imbalance or changes in receptor sensitivity in the brain or spinal cord. Since P.E. typically plagues younger men, some doctors believe P.E. is caused by the hormonal imbalances or chemical imbalances in these men that cause them to have poor or no control of their ejaculations.

With the proper attention and care, P.E. can be effectively treated and may not be permanent condition for men.

Typically, if a man can control his ejaculation for a moderate amount of time before his partner climaxes, then he’s not suffering from P.E. Yet, if sex is usually brief and a man has little or no control over his immediate ejaculation, then he may be suffering from P.E.

In determining if they have P.E., men should look at the frequency of P.E. occurring during sex. For example, if P.E. occurs more than 50% of the time or if it has been a long term or lifelong problem, then he is most likely suffering from P.E. Although, keep in mind if both parties can agree that intercourse was satisfactory, then the man does not have P.E.

Doctors can also conduct a physical examination to help diagnose P.E.

In prescribing Viagra, a doctor considers the age, general health status, and other medications the patient is taking.

The usual starting dose for most men is 50mg; however, the doctor may increase or decrease the dose depending on side effects and effectiveness. The maximum recommended dose is 100mg every 24 hours.

Many men will need 100mg of Viagra for optimal effectiveness, and some doctors are recommending 100mg as the starting dose. Nevertheless before taking the drug, patients must consult with their doctors and follow directions indicated on the containers of the medication.

The recommended starting dose of Levitra is 10 mg taken orally approximately 1 hour before sexual activity. The dose may be adjusted higher or lower depending on efficacy and side effects. The maximum recommended dose is 20 mg, and the maximum recommended dosing frequency is no more than once per day. The effects of the drug are expected to work for up to 6 hours after administration.

Levitra can be taken with or without food. Nevertheless before taking the drug, patients must consult with their doctors and follow directions indicated on the containers of the medication.

The recommended starting dose of Cialis for most patients is 10mg taken orally approximately 1 hour before sexual activity.

The dose may be adjusted higher to 20mg or lower to 5mg depending on efficacy and tolerability. The maximum recommended dosing frequency is once per day, although for many patients Cialis can be taken less frequently since the improvement in erectile function may last 36 hours.

Cialis may be taken with or without food.

Every male body reacts differently to the three E.D. medications approved by the FDA, so one drug may work better for one man than another.

Essentially all three E.D. drugs work in similar ways and while they do not increase libido, they do enable a man with E.D. to achieve an erection when sexually stimulated. There have been no real studies done to show if one of the drugs works better than the others but men taking these drugs should look at their sexual activity desires before deciding which drugs works for them.

For instance, Viagra begins working in a man’s body within 45 to 30 minutes and its effects last for roughly two to four hours. On the other hand Levitra begins working 30 to 60 minutes after taken and lasts four to five hours. Finally Cialis begins working 30 to 60 minutes after it is taken and lasts for 36 hours. No one of them has been proven to work better than the other.

However, keep in mind, the time they take to start working and the duration of their effects vary. That’s something you may want to consider based on your sexual habits. Consider this, does spontaneity matter to you, or do you usually plan sex ahead of time?

FDA findings have shown that Viagra is the most potent of the three drugs and promotes a stronger erection than the other two drugs. Most doctors typically prescribe Viagra for men with serious E.D. problems. At the same time, the effects of Cialis and Levitra may not be as potent as Viagra, but they both last for a longer duration than Viagra. Ultimately men should consult a doctor about which drug may be the best for him considering other lifestyle and health factors.

Sexual Health Doctors (sexualhealthdoctors.com) is a national directory of health care providers created in order for men to easily find ED qualified doctors in their area. The doctors in the directory are all ED friendly and are comfortable discussing various sexual health conditions.

They are all highly experienced in treating ED conditions, and are contracted by the various drug companies to give free samples of FDA approved ED drugs for qualified patients.