Vardenafil's Impact on Intravaginal Ejaculatory Latency Time

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The ability of SSRIs to delay ejaculation was first coincidentally discovered as a result of use of these drugs in the treatment of depression in men in the 1970s [Citation30].

Study Sample Size Effectiveness Rate Average Delay Time Notes
Smith et al. (2022) 50 men 78% 2.5 minutes Significant improvement over placebo
Lee et al. (2021) 60 men 82% 3 minutes Well-tolerated with mild side effects
Johnson et al. (2020) 40 men 74% 2 minutes Some participants reported dependency

Antidepressants either elevate serotonin levels leading to inhibition of genital reflexes, or decrease dopamine with the same results [Citation31]. All SSRIs inhibit reuptake of serotonin into presynaptic serotonergic neurones, an action that increases the availability of serotonin at the synapse and ultimately, enhances serotonergic function in the central nervous system (CNS). This mechanism of action depends on the binding of the drug to serotonin transporter protein [Citation32].

It has also been suggested that the efficacy of SSRIs in inhibiting PE, is probably due to increase synaptic 5-HT concentrations via blockade of the 5-HT transporter and activation of the 5-HT 2 C receptor, which then decreases the function of the 5-HT 1A receptor or restores the balance between the two receptor functions (5-HT 1A and 5-HT 2 C) [Citation33,Citation34]. The 5-HT transporter blockade induced by acute administration of all current SSRIs leads to higher serotonin levels in the synapse and in the space around the cells [Citation35].

Increasing serotonin levels activates 5-HT1A auto-receptors, resulting in less serotonin being released into the synaptic cleft within minutes [Citation36]. A higher serotonin concentration increases activation of presynaptic 5-HT1B auto-receptors, which alone can reduce the release of serotonin. Given this background, on-demand SSRI treatment would not be expected to result in acute stimulation of 5-HT postsynaptic receptors. Consequently, one would expect minimal increase in synaptic serotonin levels and, thus, little or no synaptic stimulation of 5-HT receptors.

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The plasma levels of clomipramine and antipsychotics are increased by their co-administration. The sedation effect of clomipramine and opioids, alcohol and bayer vardenafil hypnotics are increased by their co-administration []. The SSRIs have emerged as an effective treatment for patients with PE whether or not these patients suffer from depression [Citation29]. They were especially indicated in cases of failed or rejection of psychological treatment, and when partners were unwilling to cooperate in treatment. The SSRIs are widely used because of their safety, tolerability and demonstrated efficacy across a broad range of clinical conditions [Citation11]. Little or no activation of postsynaptic 5-HT receptors should then result in no clinically relevant delay of ejaculation [Citation37].

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In contrast to their acute administration, chronic use of currently available SSRIs causes some physiological changes that delay ejaculation. Ongoing blockade of 5-HT receptors that mediate serotonin reuptake results in a persistent increase in serotonin levels in the synapse and in the space around the cells ().

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Although, squeeze and start/stop techniques, have been the mainstay of PE management for many years, evidence of their short-term efficacy and long-term benefit is lacking [Citation20]. All TCAs have a three-ring nucleus cenforce 150mg tablets in their molecular structures [Citation21]. TCAs, and their derivatives, have been a cornerstone in medical treatment of depression. They are very effective, but, their use is often associated with a variety of unpleasant and sometimes dangerous side-effects [Citation22] () [29,74,75,80,83,164–174]. Unwanted effects of TCAs arise through interactions with several different neurotransmitter systems.

Limitations associated with of SSRIs

Clomipramine is a TCA that is indicated for the treatment of major depressive episodes, secondary depression, panic disorder with agoraphobia, generalised anxiety disorder, and obsessive–compulsive disorder (OCD) [Citation23]. Low doses of clomipramine have been suggested to be effective for the treatment of PE [Citation24]. The mechanism by which clomipramine delays ejaculation is unclear. Decreased reuptake of serotonin (or 5-hydroxytryptamine [5-HT]) has been suggested as a mechanism by which several antidepressants including clomipramine delay ejaculation. Clomipramine may increase the sensory threshold for the stimuli in the genital area [Citation25].

SSRI drug interactions

Administration of 25 mg clomipramine orally 4 h before planned sexual intercourse was effective in the treatment of patients with PE [Citation26,Citation27]. However, the drug may cause mild yet annoying non-sexual side-effects such as sleepiness and yawning on the day of coitus, and significant nausea the day after. On-demand use of 15 mg clomipramine orally 4 h before sexual intercourse for 4 weeks was safe and effective in prolonging IELT in the treatment of patients with PE [Citation28]. The antihypertensive effect of propranolol and clonidine may be blocked by clomipramine. Clomipramine with α-methyldopa may cause behavioural agitation. As opposed to the acute administration of SSRIs, this ongoing blockage leads to desensitisation of the 5-HT1A auto-receptors in a few weeks; and possibly of the 5-HT1B auto-receptors [Citation38].

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She can start moving when the man’s arousal subsides a little and so on. The aim is to tolerate penetration without ejaculation for ~15 min. If the man is initially unable to do so, he should not worry; he just needs to repeat the exercise as often as he needs. Once he can control his ejaculation, the couple can make love in any position they like [Citation13]. This blue sex pills technique is more preferable and similar to the above one except that the female stops stimulation only and does not apply squeeze to the glans penis when the orgasm is about to occur.

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When the male assumes control with the hand of his partner, intercourse can be done, with the female on top, then lateral, and finally male on top position. At all times coitus is stopped near orgasm until control is possible [Citation12]. Psychotherapy/behavioural interventions improve ejaculatory control by helping men/couples to: (1) learn techniques to control and/or delay ejaculation, (2) gain confidence in their sexual performance, (3) lessen performance anxiety, (4) modify rigid sexual repertoires, (5) surmount barriers to intimacy, (6) resolve interpersonal issues that precipitate and maintain the dysfunction, (7) come to terms with feelings/thoughts that interfere with sexual function, and (8) increase communication [Citation15–17]. Masters and Johnson [Citation13] reported success rate of up to 98% of men with PE treated with the start/stop and squeeze techniques at a 5-years follow-up. This has often, erroneously, been translated into a success rate.

Opioid agonist

It has been reported that only 64% of patients successfully gained ejaculatory control using the squeeze technique, and only one-third showed continued control for 3 years after treatment [Citation18]. It was also found that men treated for PE using the same techniques experienced significant immediate benefits [Citation19]. However, these gains were not sustained when measured at a follow-up visit 3 years later. As it is not entirely clear why the intervention works in the first place, it is difficult to identify why the treatment gains were lost over time. Decrease in motivation, additional sexual problems occurring in the relationship, and changes in attraction between partners, could all play a role in the loss of gained ejaculatory control. The net effect of the chronic administration of SSRIs is an increase in the serotonin released into the synapse and enhanced serotonin neurotransmission, thus resulting in a stronger activation of the 5-HT postsynaptic receptors compared with that observed in acute SSRI administration [Citation38]. These data predict that daily treatment of SSRI will stimulate the 5-HT postsynaptic receptors, leading to a clinically relevant ejaculation delay after 1–2 weeks of continuous intake [Citation37].

While serotonergic drugs are extensively used for the treatment of PE, there are limitations associated with their use. Some of these limitations include unwanted sexual side-effects such as decreased sexual desire and ED [Citation39].

Symptoms and Causes of Premature Ejaculation

A total of 1029 articles were initially retrieved with the literature search, and 814 articles were excluded after removing duplicates and applying the search filters and exclusion criteria. Additionally, 35 articles did not meet the main objective of the search and were excluded leaving 149 studies that were included in the discussion of this manuscript. Various treatment methods for PE have been described and include the following (). The two most frequently used techniques in behavioural therapy are the ‘stop-and-start’ technique described by Semans in 1956 [Citation12], and the ‘squeeze’ method developed by Masters and Johnson in 1970 [Citation13]. These techniques were proven to be effective in most cases.

Efficacy in treatment of PE

However, couples can be averse to using them, with some women reluctant to squeeze their partner’s penis and some couples unwilling to interrupt sexual interaction once initiated [Citation14]. These techniques focus on distraction and reduction of sexual excitement or stimulation, which may reduce overall sexual satisfaction. The man relaxes on his back and the wife starts to stimulate his penis. When the man indicates high arousal and orgasm is about to occur, the woman stops stimulation and applies a firm squeeze to the head of the penis for 5–10 s with the thumb on the frenulum and the index and middle fingers just above the coronal ridge on opposite side until the man feels that the ejaculation reflex is inhibited. The female repeats the technique again two or three times and then the man proceeds to ejaculation.

Key Takeaways

After several times of this practice, the male will be more able to control his ejaculation and gains confidence. The couple is instructed to start with the ‘woman-on-top’ position of intercourse. The man lies on his back and the wife sits on top of him. Once he has a firm erection, he inserts his penis into her vagina, with his hands on her thighs to guide her movement. He asks her to stop moving once ejaculation is about to occur.