A sure path to improve your sex life
Pfizer’s Blue is a decent drug when it comes to engineering erections, at least for those people who don't get an headache and don't mind the increased risk of suffering a stroke. See here:
Stroke - An Adverse Reaction to Sildenafil
There are better options.
You can try butea superba, either alone or in combination with Thai tongkat ali which is sexually more agitating than the Indonesian strain. You will have to take the butea superba for a few days, and then, there will be an overall improvement to your sex life, especially if you combine the butea superba with kaempferia parviflora (krachai dam) , a natural phosphodiesterase inhibitor: better libido, better erections, and better orgasms.
Kaempferia parviflora, a plant used in traditional medicine to enhance sexual performance contains large amounts of low affinity PDE5 inhibitors.
A man who ingests a sufficient dosage of Pfizer’s Blue (100 mg) can have sex with a woman he does not find attractive (probably even with a prostitute). He can have sex with her, because has an erection (which doesn’t mean that he necessarily enjoys it). In fact, on a sufficient dosage of Pfizer’s Blue, a man can have an erection without a woman around, and without having sexual thoughts, just by rubbing his member for a minute or two.
Therefore, if the task is some simple plumbing (increased penile inflow, reduced penile outflow), then, Pfizer’s Blue may work.
But there’s more to good sex than is provided by a good erection. Foremost, a man wants to feel desire. Appropriate sexual desire is more valuable than easy erections.
In fact, one can have great sex even with a weak erection. But one has to learn this. Most men, particularly when they are not yet in their 50’s or 60’s, sort-of panic when they are with a sex partner, and an erection does not automatically happen (as it used to).
But while a proper erection is needed for standard penetrative sex, an erection is not a requirement for a wholesome orgasm. For an orgasm, not even much of an ejaculation is fundamental.
Orgasms are an affair of sexual wiring. Not of sexual plumbing.
Physiologically, they are marked by a impulsive control of the sympathetic nervous system, while during arousal (and the erective state), the parasympathetic nervous system ruled.
Sympathetic nerve impulses, whether in context with an orgasm or determined by other events (alertness, nervousness, fear, panicking, or simply stress), are always anti-arousal and anti-erectile.
This is why men who are scared of not generating an automatic erection when with a woman, enter a vicious circle: they are concerned of not achieving a proper erection, which puts the sympathetic nervous system in command, and since the sympathetic nervous system is in command, they will be even less likely to have an erection. Then they panic, and now they could not achieve an erection even when on 200 mg of Pfizer’s Blue.
Yes, if they take the Pfizer’s Blue about an hour before being called to sex, they will surely start out with a sufficient erection, which gives them self-confidence (which supports the parasympathetic nervous system), which will put them in a state where they will be capable of sustaining their erection.
Doesn’t that sound great? Unluckily no.
The reason for this analysis (which will surely sound strange to a great many readers): if you over-emphasize the parasympathetic nervous system, then your sympathetic nervous system will be dead, or at least disabled. Which means: your orgasmic capability will be decreased.
That is why yohimbine is miserable for orgasms. Yohimbine is an alpha adrenergic receptor blocker, peculiarly in the pelvic area. Alpha adrenergic receptors are a main entree for sympathetic tone in the abdomen. If one blocks pelvic alpha adrenergic receptors, one reduces any effect the sympathetic nervous system (directly or via the release of adrenaline) can exert in this part of the body. Not enough sympathetic impulse = weak orgasm.
Wise men prefer to go without the Pfizer’s Blue when with a girlfriend that has a good sexual drive. Without Pfizer’s Blue (but on butea superba plus kaempferia parviflora), erections may not be as fast as they are on Pfizer’s Blue. They may need some “manipulation” or “handling”. But one will enjoy sex (and a great erection!) for a longer time when on butea superba plus kaempferia parviflora (in this way, men with a premature ejaculation problem will probably benefit from the combination, too), and have the strongest orgasms of their lives.