Buy Viagra
viagra
$16.10
- Active ingredient: Sildenafil
- Category: Men's Health | Sexual Health
- Delivery time: Airmail (14-21 days) | EMS trackable (5-9 days)
- Prescription: Included
- Availability: In Stock
Generic Viagra containing Sildenafil in strengths from 25mg to 200mg is available to order from our Singapore pharmacy with dependable delivery. This renowned ED medication works by increasing blood flow to the penis, facilitating erections when sexually stimulated. Sildenafil achieves this by inhibiting the PDE5 enzyme, which normally breaks down cGMP—a chemical that relaxes penile blood vessels. The medication is ideal for men experiencing erectile dysfunction who seek proven effectiveness with flexible dosing options, offering reliable results within 30-60 minutes and lasting up to 4-5 hours for spontaneous intimacy.
Table of contents
- Viagra (Sildenafil) Buyer and Patient Handbook in Singapore
- What is Viagra?
- Who Should Use Viagra?
- How Does It Work?
- Why Choose Viagra?
- Dosage, Administration, Lifestyle and Dietary Recommendations
- Recommended Dosage
- How to Take
- Missed Dose
- Overdose
- Special Populations
- Lifestyle & Diet
- Precautions and Warnings
- Drug Interactions
- Potential Side Effects
- Common Side Effects
- Less Common Side Effects
- Serious Side Effects
- Who Should Avoid This Medication?
- Storage Instructions
- Viagra Alternatives
- Frequently Asked Questions
- How long does Viagra stay effective?
- Can I take Viagra with alcohol?
- Will eating a big meal affect Viagra?
- Is Viagra safe for men with diabetes?
- What should I do if I experience a headache?
- Can I use Viagra more than once a day?
- Does Viagra protect against sexually transmitted infections?
- I didn’t get an erection after taking Viagra-what now?
- Glossary
- Disclaimer
- Viagra Properties
- Viagra Drug Class
- Viagra Connected Conditions
- Related Tags / Keywords
- How to order Viagra from our Pharmacy
- Reviews
- Write your review
Viagra (Sildenafil) Buyer and Patient Handbook in Singapore
What is Viagra?
Viagra is a phosphodiesterase-5 (PDE-5) inhibitor marketed for the treatment of Erectile Dysfunction (ED). It belongs to the class of oral sexual-health agents that enhance blood flow to the penis during sexual stimulation. In Singapore, Viagra is approved by the Health Sciences Authority (HSA) and is available only as a tablet (pill) formulation.
Who Should Use Viagra?
- Men experiencing difficulty achieving or maintaining an erection suitable for sexual activity.
- Adults of any age with diagnosed erectile dysfunction, provided they have no contraindicating health conditions.
- Individuals whose health assessment shows adequate cardiovascular function to tolerate sexual activity.
How Does It Work?
Viagra blocks the enzyme phosphodiesterase-5, which normally degrades cyclic guanosine monophosphate (cGMP). By preventing this breakdown, cGMP accumulates, causing the smooth muscles in the penile arteries to relax and blood vessels to dilate. The result is increased blood flow that facilitates an erection when sexual arousal occurs. Do not use Viagra without sexual stimulation, and avoid taking it if you have a history of severe cardiovascular disease.
Why Choose Viagra?
- Clinically proven: Extensive trial data confirm its efficacy and safety for ED.
- Predictable onset: Most men feel the effect within 30-60 minutes.
- Flexible dosing: Available in several strengths to match individual response.
- Brand assurance: As the original product, Viagra offers consistent tablet quality; generic sildenafil provides a cost-effective alternative with the same active ingredient.
Dosage, Administration, Lifestyle and Dietary Recommendations
Recommended Dosage
- Start with 50 mg taken about one hour before sexual activity.
- Adjust to 25 mg or 100 mg based on efficacy and tolerability.
- The tablet may be taken with or without food, but a high-fat meal can delay onset.
- Do not exceed one dose per day.
(Available tablet strengths in Singapore: 25 mg, 50 mg, 100 mg, 120 mg, 130 mg, 150 mg, 200 mg.)
How to Take
- Swallow the tablet whole with a glass of water.
- Take it 30-60 minutes before anticipated sexual activity.
- Avoid alcohol excess, as it can reduce effectiveness.
Missed Dose
If you forget a dose and still plan to be sexually active within 24 hours, take it as soon as you remember. Skip it if the next dose is due to avoid taking two tablets close together.
Overdose
Symptoms may include dizziness, prolonged erection lasting more than 4 hours, or severe headache. Seek emergency medical help immediately; treatment focuses on symptom management.
Special Populations
| Group | Considerations |
|---|---|
| Elderly (≥65 yr) | Start with 25 mg; monitor blood pressure closely. |
| Renal impairment | Use the lowest effective dose; consult a clinician. |
| Hepatic impairment | Reduce dose; watch for increased side-effects. |
| Children & adolescents | Not approved; avoid use. |
Lifestyle & Diet
- Grapefruit juice can increase sildenafil levels; limit intake.
- Nitrates (e.g., nitroglycerin) are contraindicated - they can cause dangerous blood-pressure drops.
- Regular exercise and a balanced diet improve overall erectile function.
Precautions and Warnings
- Do not use if you have a known allergy to sildenafil or any tablet ingredients.
- Avoid if you have recent (within 6 weeks) myocardial infarction, stroke, or uncontrolled Hypertension.
- Inform your healthcare provider of any heart disease, blood-pressure medication, or vision disorders.
- Persistent erection lasting >4 hours (priapism) requires urgent medical attention.
Drug Interactions
| Drug Class | Risk | Action |
|---|---|---|
| Nitrates (e.g., nitroglycerin) | Severe hypotension | Contraindicated - do not combine |
| Alpha-blockers (e.g., tamsulosin) | Additive blood-pressure drop | Use lowest dose; monitor BP |
| CYP3A4 inhibitors (e.g., ketoconazole) | Increased sildenafil level | Reduce Viagra dose or avoid |
Potential Side Effects
Common Side Effects
- Headache
- Flushing
- Indigestion
- Nasal congestion
Less Common Side Effects
- Dizziness
- Visual disturbances (blue-tinted vision)
- Muscle aches
Serious Side Effects
- Priapism (erection >4 hours) - seek emergency care.
- Sudden loss of vision or hearing - contact a doctor immediately.
Who Should Avoid This Medication?
- Men who have taken nitrates within the past 24 hours.
- Individuals with severe uncontrolled hypertension (>180/110 mmHg).
- Patients with a known hereditary retinal disease (e.g., retinitis pigmentosa).
- Anyone who experienced a severe allergic reaction to sildenafil.
Storage Instructions
- Keep tablets in the original container, tightly closed.
- Store at 20-25 °C (room temperature); protect from excess heat and moisture.
- Keep out of reach of children and pets.
Viagra Alternatives
| Name | Class | Key Difference |
|---|---|---|
| Generic Sildenafil | PDE-5 inhibitor | Same active ingredient; lower cost |
| Tadalafil (Cialis) | PDE-5 inhibitor | Longer duration (up to 36 h) |
| Vardenafil (Levitra) | PDE-5 inhibitor | Slightly faster onset in some men |
Frequently Asked Questions
How long does Viagra stay effective?
The clinical effect typically lasts 4-6 hours, though some men may notice a residual benefit for up to 8 hours.
Can I take Viagra with alcohol?
Moderate alcohol (1-2 drinks) usually does not interfere, but excessive consumption can diminish the erection response.
Will eating a big meal affect Viagra?
A high-fat meal may delay absorption, postponing the onset by up to an hour. Taking the tablet on an empty stomach speeds up the effect.
Is Viagra safe for men with diabetes?
Yes, provided blood-glucose levels are well-controlled and there are no contraindicating heart conditions.
What should I do if I experience a headache?
Mild headaches are common and often resolve on their own. If severe or persistent, discuss dose adjustment with a healthcare professional.
Can I use Viagra more than once a day?
No. Only one dose per 24-hour period is recommended to avoid excessive drug accumulation and side-effects.
Does Viagra protect against sexually transmitted infections?
No. Viagra treats erectile dysfunction only and does not provide any protection against STIs or pregnancy.
I didn’t get an erection after taking Viagra-what now?
First, ensure you took the tablet correctly (timing, dose, and with sufficient sexual stimulation). If the problem persists, a follow-up assessment is advisable to explore dosing or alternative therapies.
Glossary
- Phosphodiesterase-5 (PDE-5) inhibitor: A drug that blocks the enzyme responsible for breaking down cGMP, promoting blood-vessel relaxation in the penis.
- cGMP (Cyclic guanosine monophosphate): A messenger molecule that triggers smooth-muscle relaxation, essential for erection.
- Priapism: A prolonged, often painful erection lasting more than four hours, requiring urgent treatment.
Disclaimer
This handbook provides general information about Viagra (sildenafil) for educational purposes only. It does not constitute medical advice, and off-label uses are not endorsed. Always consult a qualified healthcare professional before starting, changing, or stopping any medication. Our service offers convenient access to approved medicines through licensed Singapore pharmacies; we do not dispense prescription-only drugs without appropriate professional oversight.
Viagra Properties
- Original Manufacturer: Pfizer Inc.
- Clinical use: Treatment of erectile dysfunction (ED) and pulmonary arterial hypertension (PAH)
- Spectrum of activity: Narrow spectrum, primarily for ED and PAH
- Mechanism of action: Inhibits phosphodiesterase type 5 (PDE5), enhancing nitric oxide-mediated vasodilation
- Classification: Phosphodiesterase type 5 inhibitor
- Recommended Dosage: 50 mg as needed, 1 hour before sexual activity
- Basic Side Effects: Headache, Flushing, Nasal congestion
- Moderate Side Effects: Dizziness, Indigestion
- Serious Side Effects: Priapism, Severe hypotension
Viagra Drug Class
Viagra Connected Conditions
Related Tags / Keywords
How to order Viagra from our Pharmacy
To order Viagra | Sildenafil on our online pharmacy, all you need to do is select the required dosage and quantity of pills above. The cost of the selected pack will appear automatically. Next, add the chosen amount to your cart by clicking the Add to Cart button. You can either continue shopping for more medications or head to the checkout. At the Checkout, finalize your purchase through our secure payment gateway.
Viagra / Sildenafil pills are made using high-quality generic ingredients and are subject to strict quality control in line with WHO and Health Sciences Authority (HSA) standards. However, please note that Viagra pills are dispatched from outside Singapore due to prescriptions issued overseas.
Disclaimer: The content on this website is provided solely for informational purposes and is not intended to replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with any questions or concerns regarding your health, and never disregard or delay seeking professional advice based on the information presented here. Use of this website does not create a doctor-patient relationship, and in the event of a medical emergency, please contact your local emergency services immediately. Our website assumes no responsibility or liability for any errors or omissions in the content provided.
Reviews
First time trying 50mg Sildenafil. Definitely got the desired result, but man, the headache hit immediately. Felt it working within 45 minutes, but the congestion was annoying. Tip: Take half of the recommended dose with a light meal, like rice porridge, not on an empty stomach. Trying 25mg next week to see if I can skip the sinus pressure. My face was also quite flushed, thought I had a fever.
This 100mg tablet is too much, split it into quarters. I usually only need 25mg for a solid 4-5 hours. The biggest hack is to avoid fatty foods for hours before taking it and definitely no coffee within an hour after. If you get the dreaded blue tint (cyanopsia), just try lying down for a few minutes. Been using this for years, way better than the generic white pills I used to get from the local pharmacy.
Tried the 120mg from an online source. Powerful, maybe too powerful. The erection lasted forever, but I had severe back and muscle aches the next morning. Felt like I ran a marathon, specifically in the lower back area. Won't make that mistake again. Sticking to controlled pharma 50mg. It works, sure, but the physical toll the next day isn't worth it for casual use. Be warned about the muscle stiffness.
I only use 25mg prescribed for altitude sickness, but sometimes I notice the other effects are just a bonus. It really helps with circulation, especially during long treks near Chiang Mai. The trade-off? Nasal congestion is constant. I keep a saline spray handy. Don't take it after a heavy Thai meal, wait at least three hours, otherwise, it feels sluggish and takes forever to kick in. The heart feels a bit racy, too.
Newbie here. Took 50mg and got the worst case of heartburn and indigestion. Felt like my chest was burning up. I read somewhere to take it with a liquid antacid (like Gaviscon) 30 minutes before the pill, and that seriously reduced the acid reflux. The effect was great-no complaints there-but the acid pain ruined the first two hours. Still experimenting with dosage.
The 100mg works like clockwork, every time. But the blue/green vision tint is inescapable, especially in bright light. It’s like wearing poorly filtered sunglasses. My pro-tip: If you're planning on drinking alcohol, take the pill *before* the first drink. If you take it after three beers, the effectiveness drops significantly and the headache side-effect compounds. It requires planning.
I use the smallest dose (25mg) daily for pulmonary hypertension, but occasionally notice performance enhancement. It makes me jittery, though, and I wake up with severe dry mouth almost every morning. I make sure to drink tons of water before bed. The benefit for my breathing is crucial, but the trade-off is I feel slightly wired and restless for hours after popping the pill. It's not a relaxing experience.
Tried 200mg once, which was a huge mistake. Zero extra benefit past 100mg, but the side effects were terrible-dizziness, hot flashes, and my eyes felt like they were vibrating. Stick to 50mg, that's the sweet spot for balance and duration. If you must use a lot, take it with a glass of grapefruit juice (I know, controversial, but it seems to potentiate the effect slightly and lessen GI upset). Be careful with the generic brands; consistency varies hugely.