Stud 100 Delay Spray vs Priligy: Which PE Treatment Is Right for You?

Stud 100 is a lidocaine numbing spray you can buy from a UK pharmacy without a prescription. Priligy (dapoxetine) is a prescription-only tablet. Both are designed to help men last longer, but they work through completely different mechanisms, suit different situations, and carry different risks. This article compares them side by side so you can make a practical, informed decision.

How each one works#

Stud 100 contains lidocaine 9.6%, a local anaesthetic. You spray it onto the head and shaft of the penis 5 to 15 minutes before sex. Lidocaine temporarily blocks nerve signals in the skin, reducing sensitivity and slowing the build-up to ejaculation. The effect is local: nothing enters your bloodstream in meaningful amounts.

Priligy contains dapoxetine, a short-acting SSRI. Taken 1 to 3 hours before sex, it increases serotonin activity in the brain and slows the reflex that triggers ejaculation. Unlike other SSRIs, dapoxetine is absorbed and cleared quickly. Around 5% remains in your system after 24 hours, which limits cumulative side effects.

Side-by-side comparison#

The evidence for each#

Dapoxetine has the stronger evidence base. Five randomised controlled trials enrolling over 6,000 men showed it extended intravaginal ejaculatory latency time (IELT, the time from penetration to ejaculation) by 0.5 to 3.4 minutes compared to placebo. That range reflects both the 30mg and 60mg doses across different trial populations; individual results vary and these are averages, not guarantees.

Topical anaesthetics like Stud 100 also have supporting evidence. A Cochrane review found lidocaine-based sprays do improve IELT. But the studies were smaller, shorter, and less rigorous than the dapoxetine trials. The effect is real, but the size of that effect is harder to pin down.

Dapoxetine: important safety information#

Priligy is not suitable for everyone. Read this section carefully before considering it.

Cardiac contraindications: Dapoxetine is contraindicated in men with significant ischaemic heart disease, heart failure, or significant cardiac conduction problems.

Drug interactions: Do not take dapoxetine if you are using MAOIs (or have used one in the past 14 days), SSRIs, SNRIs, tricyclic antidepressants, lithium, linezolid, or other serotonergic medicines. Combining these raises the risk of serotonin syndrome, a serious and potentially life-threatening reaction.

Alcohol and syncope: Avoid alcohol entirely when taking Priligy. Dapoxetine can cause dizziness and a vasovagal episode (sudden drop in blood pressure and heart rate leading to fainting). Alcohol significantly raises this risk. The product SPC explicitly warns against it. If you experience dizziness or nausea after taking Priligy, sit or lie down immediately until the symptoms pass, and do not drive during the same session.

Other conditions: Use with caution if you have liver or kidney problems, a history of mania or seizures, or bleeding disorders.

A prescribing clinician will screen for all of these during a Priligy consultation. This is one reason a prescription is required.

Stud 100: how to use it correctly#

Stud 100 is a Pharmacy (P) medicine. You cannot buy it from a general retailer; it must be sold under pharmacist supervision, either in a pharmacy or via a GPhC-registered online pharmacy.

The licensed dose is 3 sprays to start. Apply to the head and shaft of the penis 5 to 15 minutes before sex. If 3 sprays are not enough, the maximum licensed dose is 10 sprays per session. Do not exceed this. If even the maximum dose gives little benefit after several attempts, it is worth speaking to a pharmacist or GP about other options rather than using more.

Stud 100 is safe with both latex and non-latex condoms. If you are not using a condom, the lidocaine can transfer to your partner's skin during sex, causing temporary numbness or irritation for them. Waiting the full 5 to 15 minutes before penetration, and wiping away any excess spray beforehand, reduces (but does not eliminate) this risk. Using a condom eliminates transfer risk entirely.

If your partner is pregnant or trying to conceive: The patient information leaflet advises against use without a condom in this situation, as lidocaine absorption during pregnancy has not been adequately studied.

If you or your partner experience an allergic reaction (rash, hives, swelling, difficulty breathing), stop immediately and seek medical advice.

Who suits which treatment#

Stud 100 works well if:

• You want something available now, without waiting for a prescription.
• PE is occasional rather than happening every time.
• You prefer to avoid a medicine that affects your whole system.
• You want a low-commitment option to try first.

Priligy works well if:

• PE happens consistently and is affecting your relationship or confidence.
• You need more than a few minutes of extra time (the evidence is more robust for dapoxetine).
• Lidocaine transfer to your partner is a concern you cannot manage with condom use.
• You are comfortable with a prescription process and the associated safety screening.

Off-label SSRIs (sertraline, dapoxetine aside): GPs sometimes prescribe SSRIs like sertraline off-label for chronic PE. These are taken daily rather than on demand. They can work well for men with lifelong or very frequent PE, and on an NHS prescription they cost the standard prescription charge. However, they take weeks to build up, carry more side effects, and stopping them abruptly can cause discontinuation symptoms. Paroxetine is occasionally used but carries higher discontinuation risk and is not recommended in pregnancy. Ask your GP whether an off-label SSRI is appropriate for your situation; it is not something to start without medical review.

Can you use Stud 100 and Priligy together? This combination has not been studied in clinical trials, so there is no established safety or dosing guidance for using them together. The appropriate dose of each becomes harder to judge, and any interaction cannot be ruled out. Discuss it with a pharmacist or prescriber before trying both.

PE with coexisting ED#

If you have both premature ejaculation and difficulty getting or maintaining an erection, neither Stud 100 nor Priligy addresses the erection side. Stud 100 further reduces sensitivity, which can make erections harder to sustain. If ED is part of the picture, that needs separate assessment. Totiva offers erectile dysfunction treatment including sildenafil and tadalafil, and a prescriber can help work out which condition to treat first.

Behavioural options alongside medication#

Neither treatment addresses the psychological or learned patterns that often contribute to PE. The stop-start technique (pausing stimulation when close to ejaculation, then resuming) and the squeeze technique are both evidence-backed behavioural approaches recommended in clinical guidelines. They work well alongside medication or as standalone options for men whose PE is mild or situational. Sex therapy is also available on the NHS via GP referral, though waiting times vary.

Checking you're buying from a legitimate source#

Both treatments are available online. Before purchasing either, check that the pharmacy is registered with the GPhC (General Pharmaceutical Council). The GPhC register is searchable at pharmacyregulation.org. Legitimate online pharmacies display their GPhC registration number on their website. Totiva is registered with the GPhC (registration 9012997) and operates under pharmacist supervision for all pharmacy-only medicines.

For Priligy, a legitimate online pharmacy will require you to complete a clinical consultation before a prescription is issued. If a site offers it without any assessment, do not use it.

If you are ready to explore a prescription treatment for PE or would like an ED assessment alongside it, you can start a free consultation at Totiva.