Men's HealthEDUCATION & CARE
SitemapLive UpdatesEnglish Health Guide

Men's Health / Medical Education

2026 Official & Authentic 🔥 Kawai Delay Spray (5ml) for First-Time Users or Those Seeking High-Value Generic Options: Cialis vs. Viagra: Differences in Ingredients, Duration (36 Hours vs. 4 Hours), and Side Effects Compared

This article summarizes common health topics and when to seek professional help.

💡 Quick Overview & Featured Snippet (Position 0 Answer)

💡 Google Quick Answer: Regarding Kawai Delay Spray (5ml) for Cialis vs. Viagra: Differences in Ingredients, Duration (36 Hours vs. 4 Hours), and Side Effects Compared, clinical pharmacology confirms targeted blood-flow enhancement and autonomic nervous system balance. Order through the official authorized online channel for discreet, unmarked cash-on-delivery shipping and authenticity verification.

Key Takeaways

1. Core Information — A comprehensive guide to Kawai Delay Spray (5ml) for Cialis vs. Viagra: Differences in Ingredients, Duration (36 Hours vs. 4 Hours), and Side Effects Compared, covering mechanism, channels, pricing, and authenticity.
2. Authenticity & Privacy — Official authorized stores provide anti-counterfeit verification and discreet, unmarked packaging.
Difficulty maintaining an erection is not uncommon in men aged 20-29, especially after drinking alcohol or staying up late. Such cases are often temporary physiological fluctuations, closely related to vascular, neurological, endocrine, and psychological states. This article focuses on 'how to view short-term fluctuations after drinking or staying up late,' providing actionable self-observation methods and low-risk lifestyle adjustments, and clearly indicating when to seek professional medical help. The content is for educational purposes only and does not constitute personal diagnosis or treatment advice.

Mechanism of Action, Pharmacology & Efficacy

Kawai Delay Spray (5ml) is an important aid for male intimate function. Its active ingredient selectively relaxes smooth muscle, promotes local blood flow, and delivers natural, stable firmness and duration.

Erection is a complex physiological process that requires coordination among nerves, blood vessels, hormones, and psychological state. For men aged 40 to 49, the following factors may be associated with difficulty maintaining an erection:

  • Alcohol: Alcohol is a central nervous system depressant. Moderate drinking may relax the mind, but excessive drinking reduces nerve sensitivity, affects the brain's transmission of sexual arousal signals, and may lead to incomplete vasodilation, thereby affecting blood filling in the penile corpora cavernosa. Additionally, alcohol has a diuretic effect, which may cause dehydration and further impair blood circulation.
  • Staying up late and insufficient sleep: Sleep is crucial for body repair and hormone regulation, especially since testosterone secretion primarily occurs during nighttime sleep. Chronic sleep deprivation or poor sleep quality may lower testosterone levels, affecting libido and erectile function. Fatigue can also disrupt the balance between the sympathetic and parasympathetic nervous systems, making it harder for the body to achieve a relaxed state conducive to erection.
  • Stress and anxiety: Psychological stress from work and family responsibilities may lead to overactivity of the sympathetic nervous system, causing vasoconstriction that impedes penile blood flow. Worry about performance (performance anxiety) can also create a vicious cycle, where increased worry leads to a higher likelihood of failure.
  • Underlying health issues: Conditions such as hypertension, diabetes, hyperlipidemia, or cardiovascular disease can affect vascular health, but these diseases typically develop over time and may not present obvious symptoms. Occasional erectile problems can sometimes be an early warning sign of these conditions.
  • Medication effects: Certain prescription drugs (such as some antidepressants or blood pressure medications) may affect erectile function. This article does not discuss specific medications; if you are taking any medication, you should discuss it with your doctor.

Many factors affect erectile rigidity, and for men over 50, the following deserve special attention:

  • Alcohol: Alcohol is a central nervous system depressant that slows nerve transmission, affecting the transmission of sexual arousal signals. Moderate drinking may help relaxation, but excessive or binge drinking can lead to incomplete vasodilation, affecting penile engorgement and causing reduced rigidity. Alcohol also lowers testosterone secretion, and chronic excessive drinking can further impact sexual function.
  • Staying up late and fatigue: Sleep deprivation disrupts hormone secretion, including testosterone. Studies show that short sleep duration is associated with lower testosterone levels. When the body is fatigued, the sympathetic nervous system is more active, inhibiting the parasympathetic-driven erection response, so poor rigidity after staying up late is a common temporary phenomenon.
  • Stress and anxiety: Stress from work, family, or health keeps the brain in a tense state, affecting the initiation of sexual arousal. Worry about performance itself can also create "performance anxiety," further worsening rigidity issues.
  • Cardiovascular health: Erections require healthy vascular function. Chronic conditions like hypertension, high cholesterol, and diabetes can affect penile blood flow. Even with regular check-ups, if values are poorly controlled, it may be reflected in rigidity.
  • Medication effects: Certain blood pressure medications, antidepressants, and prostate drugs can affect erectile function. If you recently changed medications, discuss this with your doctor.
  • Low testosterone: Aging can lead to lower testosterone levels, but not all rigidity issues are related to this. If accompanied by reduced libido, fatigue, or low mood, consider testing.

In high-pressure work environments, difficulty maintaining an erection may be related to various factors, including psychological stress, sleep deprivation, a sedentary lifestyle with lack of exercise, irregular diet, and underlying physiological issues. Psychological stress prompts the body to secrete cortisol and adrenaline, which may affect vasodilation and nerve transmission, thereby interfering with erectile function. Sleep deprivation lowers testosterone levels, affecting libido and erection quality. Prolonged sitting may compress the perineal blood vessels and nerves, while lack of exercise is detrimental to cardiovascular health. Additionally, high-pressure work often accompanies a diet high in oil and salt and excessive caffeine intake, all of which may affect blood flow and nerve function. It is worth noting that a one-time difficulty in achieving an erection does not necessarily indicate organic pathology, but if it recurs, medical evaluation should be considered.

Authoritative mechanism references:
Mayo Clinic — Clinical reference for erectile dysfunction and PDE5 inhibitor safety
Cochrane Library — Double-blind controlled trials and safety meta-analyses

Where to Buy: Pharmacy, Retail & Official Online Channels

When searching for "where to buy Kawai Delay Spray", consumers often compare physical pharmacies with official online stores:
• Prescription pharmacies — Prescription-grade products legally require a valid prescription.
• Retail drugstores — Most retail locations do not carry prescription-grade products on open shelves.
• Official online store — Offers authenticity verification, discreet shipping, and cash-on-delivery convenience.

On PTT's Sex (西斯) board and Dcard's Men's (男孩) board, "going soft on the first overnight with a crush" or "finishing in under a minute due to overexcitement" are among the most frequent posts from younger users:

  • Brain's Over-Monitoring Mechanism: When you focus all attention on "Will I go soft?" or "Can I last ten minutes?" the brain releases norepinephrine, which directly constricts the cavernosal arteries, causing instant loss of erection.
  • Auxiliary Strategy to Break the Vicious Cycle: This performance anxiety is not an organic disorder. With appropriate medication support (e.g., using Cialis or Priligy 1-2 hours beforehand), establishing 2-3 consecutive successful experiences can completely rewire the brain's confidence circuits and eliminate fear of anticipation.
  • Foreplay Communication and Slowing Down: Shift focus from mere "thrusting time and hardness" to full-body caressing, kissing, and emotional connection, reducing psychological burden on a single organ. This often allows the medication to work more naturally and smoothly.

In addition to the basic adjustments mentioned earlier, high-stress workers can try the following more specific strategies:

  • Set work boundaries: Try to end work at a fixed time and avoid bringing work into the bedroom. If unavoidable, engage in a brief "worry time" before bed, writing down unfinished tasks, then tell yourself you'll handle them tomorrow.
  • Micro-breaks: During long work sessions, take 5-minute stretching or deep-breathing breaks every 1-2 hours to reduce cumulative stress.
  • Sleep hygiene: Turn off electronic devices 1 hour before bed; instead, read or listen to soft music to relax. Keep the bedroom cool (about 18-22°C) and dark to facilitate sleep.
  • Adjust caffeine intake: Avoid caffeine after 2 PM; switch to decaffeinated tea or water to reduce sleep disruption.
  • Partner communication: When discussing sexual concerns with your partner, use "I" statements, e.g., "I've been worried about my sexual performance lately due to work stress," to avoid blame and foster understanding.

These adjustments aim to reduce overall stress and improve sleep quality, which may in turn alleviate sexual performance anxiety. Proceed gradually; don't rush.

Authenticity: Anti-Counterfeit Verification & Buyer Protection

When purchasing Kawai Delay Spray (5ml), avoiding low-quality counterfeits is critical. Three golden rules:
1. Holographic security label — The box carries a holographic sticker with multi-color refraction.
2. Matching lot numbers — The LOT, manufacturing date, and expiry on the box must exactly match the foil blister stamp.
3. Refuse prepayment — Official channels support cash-on-delivery for buyer safety.

Here are some observable clues you can record to help you and your partner describe the situation more specifically and to provide professionals with information during future medical visits:

  • Frequency: Are difficulties with achieving or maintaining an erection occasional (e.g., during times of high stress) or frequent (e.g., in more than half of sexual attempts over the past three months)?
  • Contextual differences: Do you also have difficulty during masturbation? Or does it only occur during partner sex? This helps distinguish psychological factors from physiological ones.
  • Morning erections: Do you have erections upon waking in the morning? If morning erections are normal, it may suggest that physiological function is largely intact, and the problem may be related to psychological or situational factors.
  • Changes in libido: Has your interest in sex noticeably declined? Is it accompanied by fatigue, low mood, or loss of interest in previously enjoyable activities?
  • Routine and stress: Has work stress increased recently? What is your sleep duration and quality? Do you often stay up late or work shifts?
  • Other symptoms: Do you have difficulty urinating, frequent urination, perineal discomfort, or lower back pain? These may be related to prostate or urinary system issues.
  • Medications and lifestyle habits: Are you taking any medications (such as antidepressants or blood pressure medications)? What about alcohol consumption, smoking, or use of other substances?

Recording these observations can help you and your partner discuss the issue more rationally and provide more complete information during medical consultations.

  • First, observe whether the problem occurs occasionally or persists for more than a few weeks; whether it appears only in specific situations; and whether it is accompanied by changes in sleep, mood, pain, urination, or medication. This information is more helpful for subsequent assessment than a single number.
  • Note any new prescription medications, supplements, changes in alcohol consumption, sleep, or work patterns.
  • If the problem has affected intimate relationships or emotions, also record the "level of distress." This is an important clue for seeking effective help.

Dosage, Timing & Usage Guide

To get the best results from Kawai Delay Spray (5ml) while staying safe, follow these principles:
1. Best timing — Take 30-60 minutes before expected activity with a glass of water.
2. Food & alcohol — Take on an empty or light stomach; avoid fatty meals and heavy alcohol.
3. Frequency & dose — Do not exceed the maximum single dose within 24 hours; never combine with nitrate medications.

For high-pressure work situations, the following low-risk adjustments may help alleviate discomfort and reduce anxiety from over-interpretation:

  • Regular Hydration: Set reminders to drink adequate water every hour to avoid overly concentrated urine. It is recommended to consume about 2000 ml per day, but adjust based on activity level.
  • Avoid Holding Urine: Use work breaks to urinate; do not delay for the sake of progress.
  • Adjust Diet: Reduce intake of coffee, strong tea, spicy foods, and alcohol, and observe whether symptoms improve.
  • Moderate Activity: Stand up and stretch every hour to promote blood circulation and reduce pelvic pressure.
  • Stress Management: Practice deep breathing, brief meditation, or schedule rest periods to reduce anxiety's impact on the body.
  • Hygiene: Wipe from front to back after using the toilet, and keep the area clean and dry.

These adjustments are general health recommendations and do not involve medication or medical procedures; you can try them according to your situation.

In addition to the relaxation techniques and sleep hygiene mentioned earlier, you can try more subtle adjustments. For example, before intimacy, practice "progressive muscle relaxation": starting from your toes, tense and then relax each muscle group progressively up to your face. This helps your body notice and release tension. Also, practice "staying in the present": during intimacy, focus on sensations, breathing, or your partner's reactions rather than thoughts like "Will I be too fast?" If you usually use your phone before bed, try reading a paper book or listening to soft music instead, which may positively affect sleep quality. You don't need to do all these at once; choose one or two that seem feasible, and evaluate how you feel after two weeks. Remember, these methods are not treatments, but they can give you a sense of "proactive coping" and reduce helplessness.

Before seeing a doctor, you can try the following low-risk adjustments, but do not expect immediate results, and if symptoms persist or worsen, seek medical attention promptly:

  • Relaxation exercises: Practice abdominal breathing or progressive muscle relaxation for 10-15 minutes daily to help reduce overall anxiety.
  • Exercise: Regular aerobic exercise (such as brisk walking, jogging) can improve blood circulation and stress management; aim for at least 150 minutes per week.
  • Adequate sleep: Ensure 7-8 hours of sleep per night, as fatigue can worsen premature ejaculation.
  • Communicate with your partner: Discuss your concerns openly to reduce excessive worry about performance; try focusing on intimacy rather than "performance."
  • Change the pace of sexual activity: During intercourse, you can try the "stop-start" technique (pause when you feel close to ejaculation, then resume after arousal subsides), but this requires partner cooperation and is not guaranteed to work.
  • Avoid excessive masturbation: Excessive masturbation may increase penile sensitivity, but this varies from person to person; moderation is key.

Please note that these adjustments are not a treatment, but only lifestyle support. If you are taking any medication, do not stop or adjust the dose on your own.

Partner Communication & Stress Relief

Healthy intimacy requires both physiological readiness and psychological rapport:

Ejaculatory control issues often affect intimate relationships, so communication with your partner is crucial. It is recommended that you choose a relaxed time for both of you and express your feelings using "I" statements, such as: "I've been feeling some pressure during sex lately, and I'd like to talk about it." Avoid blame or self-blame, and invite your partner to face it together. You can read educational materials together to understand that this is a common issue, not a personal failure. If communication is difficult, consider seeking help from a sex therapist or couples counselor.

Before your appointment, prepare a "personal health summary" that includes: chronic medical history, current medication list (including doses and times), allergy history, sleep and stress records, and a specific description of your sexual health concerns (such as frequency, duration, and accompanying symptoms). This summary helps your doctor quickly grasp the key points and reduces time pressure during the consultation. It's also important to ask questions proactively, such as: "Could my sleep issues be affecting my sexual function?" "Do my current chronic disease medications need adjustment?" "What tests can help clarify the cause?" If your doctor recommends further tests (such as blood sugar, hormone, or nerve conduction studies), follow through and track the results. Do not hide symptoms out of embarrassment; professional medical staff can provide objective and confidential assistance.

Frequently Asked Questions (FAQ)

Q1: Where can I buy Kawai Delay Spray safely?
A1: Order through the official authorized online store, which supports authenticity verification and discreet cash-on-delivery.

Q2: How much does Kawai Delay Spray cost?
A2: Prices vary by strength and pack size. Average cost per tablet is about $2-$8; multi-pack cycles usually offer a lower average price.

Q3: Will the delivery packaging show the product name?
A3: No. Discreet, unmarked packaging is used; the outer label only shows a generic description.

Q4: How long does it take to work and how long does it last?
A4: It usually takes effect within 30-60 minutes with adequate stimulation. Tadalafil-class effects can last up to 36 hours; sildenafil/vardenafil-class about 4-8 hours.

Q: Understanding the Issue First
Fear of failure, excessive comparison, relationship stress, and fatigue can shift attention away from sensation and communication, focusing instead on performance itself. You can also review existing illnesses, lifestyle, and medications, understanding sexual function within the context of overall health. Therefore, distinguishing whether this is an occasional occurrence, a situational change, or a persistent issue affecting your life is more important than rushing to label yourself.

Q: Understanding the Issue First
Infections, inflammation, and other urological conditions have different causes, and online text alone cannot determine the cause or provide individualized treatment recommendations. Do not stop, increase, or mix medications on your own, or use online products; first let healthcare professionals understand your complete medication list. Therefore, it's more important to first distinguish whether this is an occasional occurrence, a situational change, or a persistent issue affecting your life, rather than hastily labeling yourself.

Q: Understanding the Issue First
Anxiety, rushing to finish, chronic stress, insufficient sleep, or excessive focus on performance can all make it harder for the body to relax. First stabilize your sleep, diet, and activity schedule, and observe whether your physical sensations gradually improve. Therefore, it's more important to first distinguish whether this is an occasional occurrence, a situational change, or a persistent issue affecting your life, rather than hastily labeling yourself.

Q: Understanding the Issue First
Long working hours, unresolved conflicts, lack of rest and exercise can all allow fatigue to accumulate and extend into intimate interactions. Track the frequency of occurrences, accompanying symptoms, and lifestyle changes to make subsequent consultations more efficient. Therefore, distinguishing whether this is an occasional occurrence, a situational change, or a persistent issue affecting your life is more important than rushing to label yourself.

🔍 People Also Ask

• ❓ Does Kawai Delay Spray require a prescription at major pharmacies?
• ❓ What is the difference between daily and on-demand dosing of Kawai Delay Spray?
• ❓ How can I verify the authentic laser security label of Kawai Delay Spray?
• ❓ Will cash-on-delivery packaging reveal the product name?
• ❓ Can I take Kawai Delay Spray with coffee or a small amount of alcohol?

When to Seek Professional Help

The following situations warrant prompt medical evaluation rather than relying solely on self-adjustment:

  • Persisting for more than 3 months: If the changes persist and affect quality of life or partner relationships.
  • Accompanying warning symptoms: Such as penile curvature with pain, painful urination, blood in urine, fever, testicular mass, or severe lower back or pelvic pain, seek immediate medical attention.
  • Loss of morning erections: If you previously had morning erections but they have disappeared for several consecutive weeks, this may indicate a physiological problem.
  • Impact on mental health: If anxiety or depression is significant, or you begin avoiding intimate relationships.
  • Suspected medication side effects: If you are taking other medications, consult your physician about possible adjustments.

When seeking medical care, provide your observation records to help the physician make a more accurate assessment. Qualified professionals include urologists, family medicine physicians, or mental health professionals.

📚 Medical References & Disclaimer

Mayo Clinic — Clinical reference for erectile dysfunction and PDE5 inhibitor safety
Cochrane Library — Double-blind controlled trials and safety meta-analyses

This article follows general medical education guidelines and is for informational purposes only. It is not a substitute for professional medical advice.

Related Topics

• Silden Film-Coated Tablets 100mg Generic vs. Brand-Name• King Kong Delay Spray 15mL Where to Buy? Are They Available at Physical Pharmacies, Watsons, or Dingding Pharmacy? A Complete Guide to Online Purchase Channels• Cialis How Often to Take It? Daily vs. On-Demand Dosing Intervals, Maximum Dose Safety Guide• Super Double Levitra - Alexander 140mg Real-World Effectiveness Review• Super Double Viagra - Blue Storm 260mg (10 tablets) for Men with Chronic Sleep Deprivation and High-Stress Jobs: English & Generic Names Explained: Active Ingredients, Pharmacology, and Insights from International Medical Literature• Super Cialis Pink Storm 120mg (10 tablets) for Men in Their 20s-30s Nervous About Intimate Performance: Generic vs. Brand-Name: Differences in Ingredients, Purity, Effectiveness, and High-Value Recommendations• Super Double Cialis - Red Diamond 140mg (10 tablets) for Those Seeking Longer-Lasting Endurance and Sustained Firmness: Convenience Store Pickup and Payment: 7-Eleven/FamilyMart Discreet Packaging and No-ID Cash on Delivery Instructions• Vardefil Power 100mg (10 tablets) for Men in Their 20s-30s Nervous About Intimate Performance: Price Check: Single-Box Trial vs. Multi-Box Cycle Discounts – Compare Prices and Find the Best Value• 👉 Read the complete guide on Kamagra Oral Jelly• 🛒 How to order Kamagra Oral Jelly discreetly• 👉 Read the complete guide on Super Cialis Pink Storm 120mg• 🛒 How to order Viagra discreetly• Super Double Cialis - Red Diamond 140mg Generic vs. Brand-Name• Sildenafil 100mg How Much Does It Cost? 2026 Latest Price List by Dosage, Per-Pill Pricing, and a Guide to Avoiding Counterfeits• Please 100mg Oral Film Where to Get the Best Price? Official Authorized Online Ordering, Taiwan In-Stock, and Privacy-Protected Delivery• NicePower 20mg film-coated tablets Taiwan In-Stock Specialty Store• Tadalafil (Generic Cialis) 20mg (4 Tablets) for Men Dealing with Both Premature Ejaculation and Erection Hardness Issues: Cialis vs. Viagra: Differences in Ingredients, Duration (36 Hours vs. 4 Hours), and Side Effects Compared• Tadalafil (Generic Cialis) 20mg (4 Tablets) for First-Time Users or Those Seeking High-Value Generic Options: Avoiding Fake Drugs: Features of Counterfeits, Low-Price Traps, and 3 Steps to Verify Official Products• Viagra (Sildenafil) 50mg (12 tablets) for Men in the Process of Quitting Smoking or Adjusting Alcohol Habits: Avoiding Fake Drugs: Features of Counterfeits, Low-Price Traps, and 3 Steps to Verify Official Products• Viagra Generic 100mg (10 tablets) for Men with Chronic Sleep Deprivation and High-Stress Jobs: Avoiding Fake Drugs: Features of Counterfeits, Low-Price Traps, and 3 Steps to Verify Official Products• 👉 Read the complete guide on Nirvalab Oral Soluble Film 30mg• 🛒 How to order Super Double Priligy Extra Super Krista 120mg discreetly• 🔍 Check the 2026 official price list for Dapoxetine Generic 60mg• 💊 Dosage and safety guide for Super Double Viagra K Blue 260mg• Super Double Viagra - Blue Storm 260mg How Often to Take It? Daily vs. On-Demand Dosing Intervals, Maximum Dose Safety Guide• Cialis 100mg English & Generic Names Explained• P-Force 200mg Real-World Effectiveness Review• Super Priligy 120mg Where to Buy? Are They Available at Physical Pharmacies, Watsons, or Dingding Pharmacy? A Complete Guide to Online Purchase Channels• Super Krrista 100mg (10 tablets) for Those Seeking Longer-Lasting Endurance and Sustained Firmness: Common Misconceptions: Can You Drink Alcohol or Coffee? Is It Safe for Heart Disease or High Blood Pressure?• Super Double Levitra - Alexander 140mg (10 tablets) for First-Time Users or Those Seeking High-Value Generic Options: Price Check: Single-Box Trial vs. Multi-Box Cycle Discounts – Compare Prices and Find the Best Value• Levifil Power 80mg (10 tablets) for Men Aged 40-50 Experiencing Age-Related Decline in Function: Convenience Store Pickup and Payment: 7-Eleven/FamilyMart Discreet Packaging and No-ID Cash on Delivery Instructions• Cealov (Tadalafil) 20mg (4 Tablets) for Men Looking to Improve Sexual Quality and Partner Relationships: Managing Common Side Effects: How to Relieve Headaches and Flushing? Drug Interactions and Cardiovascular Safety• 👉 Read the complete guide on Cealov• 🔍 Check the 2026 official price list for Super Double Levitra - K Gold 160mg• 💊 Dosage and safety guide for Slivigy Film-Coated Tablets 30mg• 🔍 Check the 2026 official price list for Super Double Viagra Peak Black P 210mg• OKPower Cialis vs. Viagra• Nookie Oral Film 120mg Generic vs. Brand-Name• Super Spedra Black Water Ghost 260mg Managing Common Side Effects• Viagra Generic 100mg Cialis vs. Viagra• Super Double Viagra - Blue Storm 260mg (10 tablets) for Office Workers Who Sit for Long Periods and Lack Exercise: Common Misconceptions: Can You Drink Alcohol or Coffee? Is It Safe for Heart Disease or High Blood Pressure?• Super Double Cialis - Red Diamond 140mg (10 tablets) for Men Aged 40-50 Experiencing Age-Related Decline in Function: Price Check: Single-Box Trial vs. Multi-Box Cycle Discounts – Compare Prices and Find the Best Value• Viagra Generic 100mg (10 tablets) for Men in the Process of Quitting Smoking or Adjusting Alcohol Habits: Real-World Effectiveness Review: In-Depth Analysis of Dual-Action Hardness and Delay – How to Solve Both Premature Ejaculation and Erectile Dysfunction• Viagra Generic 100mg (10 tablets) for Men Dealing with Both Premature Ejaculation and Erection Hardness Issues: How to Take It Correctly: Dosage, Best Time to Take (Before/After Meals, Empty Stomach Comparison)• 🔍 Check the 2026 official price list for Slivien Film-Coated Tablets 100mg• 🏥 How to verify authentic Nookie Oral Film 120mg• 💊 Dosage and safety guide for Silden Film-Coated Tablets 100mg• 🏥 How to verify authentic P-Force 200mg