Men's HealthEDUCATION & CARE
SitemapLive UpdatesEnglish Health Guide

Men's Health / Medical Education

2026 Official & Authentic 🔥 Tadalafil (Generic Cialis) 20mg (4 Tablets) 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 Tadalafil (Generic Cialis) 20mg (4 Tablets) 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 Tadalafil (Generic Cialis) 20mg (4 Tablets) 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 refers to the inability to sustain sufficient firmness during sexual activity, leading to interruption or difficulty. For young men aged 20 to 29, occasional occurrences are not uncommon, but if they recur for more than two weeks, they may be related to psychological stress, lifestyle habits, or underlying health factors. This article focuses on 'what to record before a consultation,' providing specific observation clues and low-risk adjustment suggestions, and explains when to seek professional help. The content is for educational purposes only and does not involve diagnosis or treatment.

Mechanism of Action, Pharmacology & Efficacy

Tadalafil (Generic Cialis) 20mg (4 Tablets) 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.

Changes in erectile hardness can be caused by multiple factors that often interact. Understanding these factors can help you provide more complete information when seeking medical care.

  • Vascular health: Erections require adequate blood flow into the penile corpora cavernosa. Chronic conditions like hypertension, hyperlipidemia, and diabetes affect vascular elasticity and blood flow, thereby impacting erectile hardness.
  • Nervous system: Nerve signal transmission is crucial for erections. Spinal cord injuries, multiple sclerosis, or diabetic neuropathy can interfere with nerve transmission.
  • Hormones: Male hormones like testosterone affect libido and erectile function. Thyroid dysfunction or hypogonadism may also be involved.
  • Psychological factors: Stress, anxiety, depression, or relationship issues often lead to erectile difficulties or insufficient hardness. These factors often coexist with physiological factors.
  • Lifestyle habits: Smoking damages the endothelium, affecting blood flow; excessive alcohol can suppress the central nervous system and hormone secretion. Additionally, lack of exercise, obesity, and sleep deprivation can also have an impact.
  • Medication effects: Certain antihypertensives, antidepressants, antihistamines, etc., can affect erectile function. If you are taking any medication, inform your doctor during medical visits.
  • Other diseases: Kidney disease, liver disease, metabolic syndrome, etc., may also be related to erectile function.

Quitting smoking or reducing alcohol consumption is a commendable health decision, but the body needs time to adapt to these changes, and sexual function may fluctuate during this process. Here are some possible related factors:

  • Nicotine withdrawal symptoms: Long-term smokers who suddenly reduce or stop nicotine intake may experience anxiety, irritability, difficulty concentrating, etc. These emotional and neurological changes may indirectly affect libido or erectile function.
  • Blood circulation and vascular health: Smoking damages endothelial function and affects blood flow; after quitting, vascular function gradually recovers, but initially, the body may be unstable as it readjusts. Alcohol may temporarily dilate blood vessels, but chronic excessive use damages nerves and blood vessels; after reducing intake, the body needs to readapt.
  • Sleep and fatigue: Quitting smoking or reducing alcohol may affect sleep quality, such as increased dreaming or difficulty falling asleep, and sleep deprivation can reduce energy and libido.
  • Psychological stress and expectations: You may have expectations about sexual function after quitting smoking or drinking. When results are not as expected, anxiety can arise, creating pressure that affects performance.
  • Existing chronic health issues: If you have chronic conditions like hypertension, diabetes, or cardiovascular disease, these conditions themselves can affect sexual function, and lifestyle changes may interact with medications or disease management.

Please note that these factors are not absolute, and each person's situation is different. Importantly, you can use these potential influences as a starting point for observation rather than drawing conclusions on your own.

Ejaculatory control issues have multiple causes, potentially involving the interaction of physiological, psychological, and lifestyle factors. For those with shift work or irregular schedules, the following factors require special attention:

  • Fatigue and circadian rhythm disruption: Irregular sleep can affect the nervous system and hormonal balance, potentially reducing control over the ejaculatory reflex.
  • Stress and anxiety: Work stress, worry about performance, or anxiety about relationship changes can overexcite the sympathetic nervous system, accelerating ejaculation.
  • Relationship interaction patterns: Long-term lack of communication, misunderstandings, or expectation gaps can create a cycle of "performance anxiety," perpetuating the issue.
  • Underlying health conditions: Thyroid dysfunction, prostatitis, neurological diseases, or medication side effects can affect ejaculatory control.
  • Lifestyle habits: Excessive alcohol or caffeine intake, or lack of exercise, can indirectly affect sexual function.

These factors are not independent but can compound each other. Understanding these backgrounds helps you view the issue more comprehensively, rather than simply blaming yourself or the relationship.

Authoritative mechanism references:
Cleveland Clinic — Trusted patient education on men's sexual health and medication safety
National Center for Biotechnology Information (NCBI / PubMed) — International urology and sexual medicine literature index

Where to Buy: Pharmacy, Retail & Official Online Channels

When searching for "where to buy Tadalafil", 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.

In addition to basic hydration and urination habits, the following adjustments can better suit your situation:

  • Establish a Urination Routine: Urinate at fixed times each day (e.g., after waking, after meals, before bed), and urinate within 10 minutes after sexual activity to reduce bacterial retention.
  • Adjust Dietary Order: If you suspect coffee or spicy foods trigger discomfort, try the "reduce-observe-restore" approach: first reduce intake for a week and record symptom changes; if improvement occurs, gradually reintroduce and observe whether symptoms reappear.
  • Stress Release Techniques: When feeling anxious, try the "4-7-8 breathing technique" (inhale for 4 seconds, hold for 7 seconds, exhale for 8 seconds), repeating 3-5 times, which can help relax the pelvic floor muscles.
  • Partner Involvement: Invite your partner to join you in light walks or stretching, which not only enhances your relationship but also diverts attention from symptoms.

In addition to basic relaxation techniques and a healthy lifestyle, the following advanced adjustments may have a positive impact on ejaculatory control. However, note that these are not treatments, and effects vary from person to person:

  • Pelvic Floor Muscle Training: Also known as Kegel exercises, contracting and relaxing the pelvic floor muscles may enhance ejaculatory control. You can try interrupting urine flow during urination to feel the muscle contraction, but do not practice frequently during urination to avoid affecting bladder function. It is recommended to perform several times daily, each time contracting for 5 seconds and relaxing for 5 seconds, repeated 10 times.
  • Adjusting Sexual Rhythm: During sexual activity, when you feel close to ejaculation, pause stimulation and wait for arousal to subside before continuing. This "stop-start" technique can help you become familiar with your body's responses, but it requires good communication with your partner to avoid pressure.
  • Reducing Overstimulation: Excessive masturbation or viewing pornography may affect sexual response. Try reducing frequency and observe if there is improvement.
  • Be Aware of Medications and Alcohol: Certain medications (such as antihistamines in cold medicines) may affect ejaculation, while alcohol may delay or inhibit ejaculation. Record usage and discuss with your physician.

Authenticity: Anti-Counterfeit Verification & Buyer Protection

When purchasing Tadalafil (Generic Cialis) 20mg (4 Tablets), 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.

  • Feelings and physical states in intimate relationships change over time. Focusing on safety, respect, and quality of life, rather than categorizing yourself as 'normal or abnormal,' usually reduces unnecessary stress.
  • Note any new prescription medications, supplements, changes in alcohol consumption, sleep, or work patterns.
  • If the issue is affecting your intimate relationship or mood, record the 'level of distress' as well; this is an important clue for effective help-seeking.

During a health checkup, healthcare providers may perform the following assessments (for informational purposes only, not diagnostic):

  • Questionnaire Assessment: Use standardized questionnaires (e.g., Premature Ejaculation Diagnostic Tool) to quantify symptom severity.
  • Physical Examination: Examine genitals, prostate, and nerve reflexes to rule out structural or neurological issues.
  • Basic Tests: May include blood sugar, lipid profile, hormones (e.g., testosterone), or thyroid function tests to rule out endocrine abnormalities.
  • Referral to Specialists: If prostate or neurological issues are suspected, referral to urology or neurology may occur.

Understanding these steps can reduce uncertainty during medical visits, but actual tests are determined by healthcare providers based on individual circumstances.

Dosage, Timing & Usage Guide

To get the best results from Tadalafil (Generic Cialis) 20mg (4 Tablets) 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.

The following adjustments can help improve sleep and overall health, but they are not a guarantee of treatment:

  • Regular routine: Keep a fixed wake-up and bedtime, even on holidays.
  • Pre-sleep relaxation: Avoid using electronic devices 1 hour before bed; try meditation, deep breathing, or a warm bath.
  • Environment adjustment: Keep the bedroom dark, quiet, and cool; use blackout curtains or earplugs.
  • Diet and exercise: Avoid heavy meals, caffeine, and alcohol before bed; exercise moderately during the day, but avoid vigorous exercise within 3 hours of bedtime.
  • Stress management: Schedule rest time, learn to decline excessive overtime, and communicate with your partner about sources of stress.

The following adjustments are low-risk and can be done on your own, but if symptoms persist or worsen, see a doctor:

  • Regular hydration: Drink water in portions before, during, and after work, avoiding large amounts at once. Set reminders to drink about 150–200 ml per hour, but reduce intake 1–2 hours before bed to reduce nocturia.
  • Toileting habits: Avoid holding urine; go to the toilet when you feel the urge. If your work environment is inconvenient, coordinate with your supervisor for bathroom breaks.
  • Adjust caffeine and alcohol: Coffee, strong tea, and alcohol can irritate the bladder; reduce intake, especially within 4 hours before bed.
  • Sleep management: After work, create a dark, quiet sleep environment and catch up on sleep. If you can't sleep continuously, take short naps, but avoid long sleep close to your next shift.
  • Pelvic floor muscle exercises: Also known as Kegel exercises, they strengthen the muscles that control urination. To do them, tighten the muscles around the urethra and anus, hold for 5 seconds, then relax; repeat 10 times, 3 sets daily. If unsure, consult a professional.
  • Stress management: Use short breaks for deep breathing or stretching to reduce anxiety's impact on urination.

These adjustments won't work immediately, but they can reduce some discomfort. If there's no improvement after one to two weeks, or if symptoms worsen, seek professional help.

The following are low-risk lifestyle adjustments that may help improve overall health and sexual function, but they are not a guarantee of treatment:

  • Regular routine: Ensure adequate sleep (7-9 hours), which helps with hormonal balance and emotional stability.
  • Moderate exercise: At least 150 minutes of moderate-intensity exercise per week (e.g., brisk walking, swimming) can improve circulation and reduce stress.
  • Balanced diet: Eat plenty of fruits, vegetables, whole grains, and quality protein; reduce high-sugar, high-fat, and processed foods.
  • Stress management: Practice deep breathing, meditation, or mindfulness, or engage in hobbies to relax.
  • Limit alcohol and quit smoking: Excessive alcohol and smoking can affect vascular function; reducing intake benefits overall health.
  • Communicate with your partner: Choose an appropriate time and express feelings using "I" statements, e.g., "I've been feeling stressed lately due to health issues, which affects our intimacy. I'd like to talk about it." Avoid blaming your partner or yourself.

These adjustments require persistence and should be combined with medical advice.

Partner Communication & Stress Relief

Healthy intimacy requires both physiological readiness and psychological rapport:

Many men avoid discussing sexual function issues due to shame or fear of being labeled. But understand that doctors deal with similar issues every day; this is a normal medical conversation. You can write down key terms in advance, such as "erectile dysfunction," "low libido," or "premature ejaculation," and practice saying them aloud. If it's still difficult to bring up, you can start with "I have some private health concerns I'd like to ask about" and then gradually explain. Additionally, if your partner accompanies you to the appointment, they can provide an outside perspective, but always respect your wishes.

Sexual health is never just a personal matter; it's closely tied to your partner relationship. Sleep deprivation can make you emotionally unstable and impatient, leading to increased conflicts with your partner; and relationship tension can further reduce libido and sexual satisfaction. Conversely, a stable partner relationship provides emotional support, alleviates stress, and even improves sleep quality. Therefore, when observing and adjusting, consider your partner. You can discuss sleep habits and stressors together and plan healthier routines. For example, set a rule to "turn off phones 30 minutes before bed" or share household chores to reduce each other's burden. If you find that intimacy issues are significantly affecting the relationship, or your partner is also distressed, seeking couples counseling or sexual health consultation may be the appropriate next step. This is not "admitting failure" but actively addressing the problem.

Frequently Asked Questions (FAQ)

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

Q2: How much does Tadalafil 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
Factors such as hypertension, diabetes, dyslipidemia, smoking, and a sedentary lifestyle may require a comprehensive evaluation by a healthcare professional based on your individual situation. First, stabilize sleep, diet, and activity schedules, and observe whether your body gradually feels better. 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
Irregular routines, interrupted sleep, emotional stress, and changes in overall health can all affect the frequency you observe. You can also review existing medical conditions, lifestyle, and medications, understanding sexual function within the context of overall health. 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
Infections, inflammation, and other urological conditions have different causes; online text alone cannot determine the cause or provide individualized treatment advice. Blood in the urine may have different sources; online articles cannot replace examination, and a qualified medical professional should make the judgment. Therefore, it is more important to first distinguish whether it is an occasional occurrence, a situational change, or a persistent problem affecting your life, rather than rushing to label yourself.

Q: Understanding the issue first
Psychological stress, partner interaction, smoking and alcohol use, insufficient physical activity, and some chronic conditions or medications are all worth considering in the evaluation. Arrange sustainable rest periods and make stress management a daily practice, not just something you address when problems arise. Therefore, it is more important to first distinguish whether it is an occasional occurrence, a situational change, or a persistent problem affecting your life, rather than rushing to label yourself.

🔍 People Also Ask

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

When to Seek Professional Help

If changes in morning erections persist for more than two weeks, or are accompanied by the following, seek medical attention promptly:

  • Rapid symptom deterioration: Such as sudden complete loss of erectile function.
  • Accompanying warning signs: Chest tightness, chest pain, shortness of breath, severe headache, blurred vision, or painful urination.
  • Impact on quality of life: Significant distress due to erectile issues or impact on partner relationships.
  • Other chronic conditions: Such as diabetes, hypertension, or cardiovascular disease, requiring regular follow-up.
  • Suspected medication side effects: If you recently started a new medication, discuss possible adjustments with your physician.

When seeking medical care, bring self-observation records and proactively inform the physician of all medications and health conditions. The physician will arrange appropriate tests based on individual circumstances, such as blood tests, hormone tests, or vascular function assessment. Never purchase or use any medication on your own, as this may delay diagnosis or cause risks.

📚 Medical References & Disclaimer

Cleveland Clinic — Trusted patient education on men's sexual health and medication safety
National Center for Biotechnology Information (NCBI / PubMed) — International urology and sexual medicine literature index

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

Related Topics

• Tadarise English & Generic Names Explained• Please 100mg Oral Film Managing Common Side Effects• Lovegra Oral Jelly 100mg Common Misconceptions• Please 100mg Oral Film How to Spot Counterfeit vs. Genuine• King Kong Delay Spray 15mL for Those Who Value Privacy and Prefer Convenience Store Pickup with Cash on Delivery: Where to Buy? Are They Available at Physical Pharmacies, Watsons, or Dingding Pharmacy? A Complete Guide to Online Purchase Channels• Super Double Viagra - Blue Diamond 200mg (10 tablets) for Men in Their 20s-30s Nervous About Intimate Performance: PTT/Dcard User Reviews: Real-World Effectiveness, Personal Experiences, and Frequently Asked Questions• Slivien Film-Coated Tablets 100mg (4 tablets) for Office Workers Who Sit for Long Periods and Lack Exercise: How Often to Take It? Daily vs. On-Demand Dosing Intervals, Maximum Dose Safety Guide• Super P-Force Oral Jelly (Sildenafil/Dapoxetine) 160mg (7 Packets) for Men Aged 40-50 Experiencing Age-Related Decline in Function: How to Buy Without a Prescription: A Guide to Safely Purchasing Genuine Products, Comparing Physical Pharmacies and Online Authorized Channels• 👉 Read the complete guide on Viagra Effervescent 100mg• 🔍 Check the 2026 official price list for Sildalip Gold 200mg• 🛒 How to order Super P-Force Oral Jelly discreetly• 💊 Dosage and safety guide for Viagra Generic 100mg• Super Double Viagra K Blue 260mg Price Check• Super Double Levitra - Alexander 140mg Where to Buy? Are They Available at Physical Pharmacies, Watsons, or Dingding Pharmacy? A Complete Guide to Online Purchase Channels• Super P-Force Oral Jelly How Often to Take It? Daily vs. On-Demand Dosing Intervals, Maximum Dose Safety Guide• Vardefil Power 100mg Where to Get the Best Price? Official Authorized Online Ordering, Taiwan In-Stock, and Privacy-Protected Delivery• Super Kamagra (Sildenafil/Dapoxetine) 160mg (4 Tablets) for Men in the Process of Quitting Smoking or Adjusting Alcohol Habits: How to Buy Without a Prescription: A Guide to Safely Purchasing Genuine Products, Comparing Physical Pharmacies and Online Authorized Channels• NicePower 20mg film-coated tablets (4 tablets) for Those Who Value Privacy and Prefer Convenience Store Pickup with Cash on Delivery: How to Take It Correctly: Dosage, Best Time to Take (Before/After Meals, Empty Stomach Comparison)• Super Cialis Pink Storm 120mg (10 tablets) for Those Who Value Privacy and Prefer Convenience Store Pickup with Cash on Delivery: How to Buy Without a Prescription: A Guide to Safely Purchasing Genuine Products, Comparing Physical Pharmacies and Online Authorized Channels• Super Double Viagra Purple Tadpole 250mg (10 tablets) for Men Dealing with Both Premature Ejaculation and Erection Hardness Issues: Where to Get the Best Price? Official Authorized Online Ordering, Taiwan In-Stock, and Privacy-Protected Delivery: The Full Process• 🏥 How to verify authentic Tadalafil• 🛒 How to order NicePower 20mg film-coated tablets discreetly• 👉 Read the complete guide on Super Double Cialis - Red Diamond 140mg• 🏥 How to verify authentic Super Kamagra• Super Double Levitra - K Gold 160mg Where to Get the Best Price? Official Authorized Online Ordering, Taiwan In-Stock, and Privacy-Protected Delivery• Vardefil Power 100mg Real-World Effectiveness Review• Super Double Viagra - Blue Diamond 200mg How Often to Take It? Daily vs. On-Demand Dosing Intervals, Maximum Dose Safety Guide• NicePower 20mg film-coated tablets How to Take It Correctly• Super Double Levitra - K Gold 160mg (10 tablets) for Men in the Process of Quitting Smoking or Adjusting Alcohol Habits: Generic vs. Brand-Name: Differences in Ingredients, Purity, Effectiveness, and High-Value Recommendations• Tadalafil (Generic Cialis) 20mg (4 Tablets) for Men Looking to Improve Sexual Quality and Partner Relationships: How Often to Take It? Daily vs. On-Demand Dosing Intervals, Maximum Dose Safety Guide• Cealov (Tadalafil) 20mg (4 Tablets) for First-Time Users or Those Seeking High-Value Generic Options: How to Buy Without a Prescription: A Guide to Safely Purchasing Genuine Products, Comparing Physical Pharmacies and Online Authorized Channels• Slivien Film-Coated Tablets 100mg (4 tablets) for Men with Chronic Sleep Deprivation and High-Stress Jobs: How Long Does It Last? Detailed Explanation of Duration of Action, Half-Life, and the Dual Effect of Prolonged Hardness• 👉 Read the complete guide on Super Double Levitra - K Gold 160mg• 🛒 How to order Nirvalab Oral Soluble Film 30mg discreetly• 👉 Read the complete guide on Slivigy Film-Coated Tablets 30mg• 📚 Medical references for Cenforce 200mg• Super Double Viagra Purple Tadpole 250mg Where to Get the Best Price? Official Authorized Online Ordering, Taiwan In-Stock, and Privacy-Protected Delivery• King Kong Delay Spray 15mL English & Generic Names Explained• Nirvalab Oral Soluble Film 30mg How to Take It Correctly• Super Double Viagra Peak Blue P 220mg Where to Get the Best Price? Official Authorized Online Ordering, Taiwan In-Stock, and Privacy-Protected Delivery• Dapoxetine Generic 60mg (10 tablets) for Those Who Value Privacy and Prefer Convenience Store Pickup with Cash on Delivery: How to Take It Correctly: Dosage, Best Time to Take (Before/After Meals, Empty Stomach Comparison)• Super Kamagra (Sildenafil/Dapoxetine) 160mg (4 Tablets) for Men Looking to Improve Sexual Quality and Partner Relationships: How Much Does It Cost? 2026 Latest Price List by Dosage, Per-Pill Pricing, and a Guide to Avoiding Counterfeits• Super Double Viagra - Blue Diamond 200mg (10 tablets) for Men Looking to Improve Sexual Quality and Partner Relationships: Where to Get the Best Price? Official Authorized Online Ordering, Taiwan In-Stock, and Privacy-Protected Delivery: The Full Process• Lonfilis Film-Coated Tablets 20mg (4 tablets) for Those Who Value Privacy and Prefer Convenience Store Pickup with Cash on Delivery: How Often to Take It? Daily vs. On-Demand Dosing Intervals, Maximum Dose Safety Guide• 👉 Read the complete guide on NicePower 20mg film-coated tablets• 🔍 Check the 2026 official price list for Super Krrista 100mg• 🔍 Check the 2026 official price list for Cialis• 💊 Dosage and safety guide for Super Cialis Pink Storm 120mg