The erectile drug induces erection without supplying your body hormones such as HGH, DHEA and testosterone. That is why it produces so many side effects, even death. Ejaculation burns a lot of hormones. Without sufficient hormones, ejaculation will make your weak and lower your bioelectric potential in the parasympathetic nervous system that plays an important role in ejaculation control and powering ip the penis.
The erectile drug won't solve this problem, and you overload your body with this powerful drug and kill your liver function which is supposed produce a testosterone burst and burning for ballooning your penis. You can take The erectile drug 5-10 mg, without deactivating your liver function and drawing too much bioenergy from your heart, eyes and ears to your prostate/penis. Without the endocrine function, The erectile drug gives you a mild erection at most. Weak erection causes premature ejaculation. Why? When erection is weak, you will try to contract your prostate to assist erection. Once you do that, your prostate ejaculation valve is triggers. Inside your brain, you are panic about losing your erection, you brain switch the nervous function from the parasympathetic mode (energy restoration and preservation that actuate erection, the Yin Chi in the Chinese Medical Concept) to the sympathetic mode (the Defense Chi)to excute "Fight or Flight", that is, "Ejaculation or Erection Withdrawal."

No technics will work for you when your brain is in the sympathetic mode (overheated and panic!)during intercourse. Most men have trained their brain to ejaculate as soon as possible by masturbation. During intercourse, they will use multiple ejaculations to extend their lovemaking session until they are sexually exhausted, like insect mating. Then, their erection becomes very weak, pointing to a 3-4 o'clock position like the porn movie stars'. When they try to revive the erection during intercourse, their prostate nerve becomes panic and orgasmic!
My ViaPal-hGH packages are formulated to power the brain's parasympathetic mode, reduce stress hormone production for a hard erection, and block the stress hormonal receiptors in the prostate and other organs, so that the brain won't issue "Fight or Flight" command and the prostate nerve becomes fully relaxed. This formula is formulate based upon the Chinese Medical Principle "Promoting Yin (the brain's parasympthetic acetlycholine action) to assist Yang (the brain's sympathetic's dopamine-norepinephrine action)." When the dopamine-norepinephrine action elevates to an extreme, the sympathetic motor nerve will trigger a powerful orgasm (and ejaculation) which will send a energy surge to re-stimulate the brain's nervous/endocdrine function. In this way, men can benefit from sexual intercoures. This is what Old Taoists said "Extract Yin from the female body to replenish the male body." How can you extract the female energy? This is one of the most important parts of Sexual ChiKong Intercoures - the Penile Ballooning Method which use the two major nerves (green dots) in the superior (upper) penile cyclinders to tap the female energy from her Epicenter, as shown in
http://www.actiontao.com/image/fig6-17b.jpg
and
http://www.actiontao.com/image/attack.jpg
To do so, you must have a natural erection in the beginning. With this trick, lovemaking will increase the penile size and improve health condition.
/cases/case7506.htm
In fact, you need ViaPal-hGH-D (3-012) to charge you parasympathetic nervous system (the generation of your Yin Chi, or acetlycholine action in the brain/nervous system) to actuate your penile erection and initiate your penile ballooning,
/mail/herbform.htm
so that the blood pressure inside your penile shaft can block your nervous transmission between the glans and prostate. I have practiced my penile ballooning method in conjuction with my Sexual ChiKong Breathing method for hourly love action (copntinuous pumping and thrusting) without ejaculation. Before my penis starts to balloon beyound my natural erection which occur spantaneously without oral or hand jobs, I won't pump or thrust; instead, I use my screwing technique to initiate my penile ballooning and her vaginal expansion. Once my feeling of the stimulation on my glans starts to mitigate while my penis is expanding, I shift the lovemaking gear from the first to the fifth step by step. Once Her vagina is fully expanded, we charge to high-impact love positions with a love stroke rate at 2.5 strokes per second.
The high-impact love positions always stimulate her G-spot and Epicenter with a high pressure, but won't stimulate my trigger zone, as shown in
http://www.actiontao.com/image/trigger.jpg
So, to last longer, you have to
1. start a screwing motion to balloon your penis with my Sexual ChiKong Breathing Method and Penile Ballooning method,
2. Increase the stimulation strokes once your penile sensitivity is mitigated and vanished and her vagina is expanding.
3. Alternate high-impact love positions with double-body motion with 3-point Exitation Position once her vagina is full expanded, which has a size of 2-3 inches in diameter. With this vaginal expansion size, there is no much friction force to stimulate your trigger zone, as shown in
http://www.actiontao.com/image/resonant.jpg
http://www.actiontao.com/image/attack.jpg