Sildenafil citrate, commonly known by the brand name, is a prescription-only medicine used to treat erectile dysfunction (ED) in adult men. It works by improving blood flow to the penis, helping to achieve and maintain an erection during sexual activity.

Dosage and Administration

Sildenafil is available in 25mg, 50mg, and 100mg strengths.

• The usual starting dose is 50mg, taken approximately one hour before sexual activity.
• Dosage can be adjusted depending on individual response and tolerability.
• Take only one tablet in 24 hours, with or without food.
• Avoid grapefruit juice, as it can increase the risk of side effects.
• A high-fat meal may delay onset of action.

Effectiveness

Sildenafil has been shown to be effective in up to 80% of men with ED, with effects typically noticeable within 30 to 60 minutes, and lasting for up to 4–5 hours.

Side Effects

Common side effects include:

• Headache
• Flushing
• Nasal congestion
• Indigestion

Less common but serious effects include visual disturbances, hearing changes, or prolonged erections. Seek medical attention if severe or persistent side effects occur.

Contraindications

Sildenafil should not be used by those:

• Taking nitrates for chest pain
• With severe heart or liver conditions
• Under 18 years of age
• With certain medication interactions (e.g. alpha-blockers, antifungals, antibiotics)

Interactions

Inform your doctor of all medications and supplements before use. Interactions may occur with:

• Nitrates
• Alpha-blockers
• Some antibiotics and antifungal medicines

Alcohol and Heart Conditions

Avoid excessive alcohol while taking sildenafil, as it can lower blood pressure and increase side effect risk. Use with caution if you have any heart-related conditions.

Availability and Cost

Sildenafil is available by prescription only in the UK.

• Generic versions are more affordable than branded Viagra.
• Supplied by licensed UK pharmacies such as Online Chemist.
• Avoid counterfeit products from unregulated websites.

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Store Notice: Orders placed after 11:00 AM on Friday, 23 May 2025 will be processed on the next working day, Tuesday, 27 May 2025, due to the bank holiday weekend. Thank you for your understanding.

Common: These side effects are usually mild to moderate, temporary. If you...

Side Effects not listed.Safety Warning

Sildenafil can help men achieve and maintain an erection when sexual activity is sexually excited. If you are...

Sildenafil is not recommended for use by men who have had a...

Key Points

Sildenafil has been shown to be effective treatment for...

Sildenafil has been shown to be...

Sildenafil citrate, commonly known by the brand name, is a prescription-only medicine used to treat erectile dysfunction (ED) in adult men. It works by improving blood flow to the penis, helping to achieve and maintain an erection during sexual activity.

Dosage and Administration

Sildenafil is available in 25mg, 50mg, and 100mg strengths.

• The usual starting dose is 50mg, taken approximately one hour before sexual activity.
• Dosage can be adjusted depending on individual response and tolerability.
• Take only one tablet in 24 hours, with or without food.
• Avoid grapefruit juice, as it can increase the risk of side effects.
• A high-fat meal may delay onset of action.

Effectiveness

Sildenafil has been shown to be effective in up to 80% of men with ED, with effects typically noticeable within 30 to 60 minutes, and lasting for up to 4–5 hours.

Side Effects

Common side effects include:

• Headache
• Flushing
• Nasal congestion
• Indigestion

Less common but serious effects include visual disturbances, hearing changes, or prolonged erections. Seek medical attention if severe or persistent side effects occur.

Contraindications

Sildenafil should not be used by those:

• Taking nitrates for chest pain
• With severe heart or liver conditions
• Under 18 years of age
• With certain medication interactions (e.g. alpha-blockers, antifungals, antibiotics)

Interactions

Inform your doctor of all medications and supplements before use. Interactions may occur with:

• Nitrates
• Alpha-blockers
• Some antibiotics and antifungal medicines

Alcohol and Heart Conditions

Avoid excessive alcohol while taking sildenafil, as it can lower blood pressure and increase side effect risk. Use with caution if you have any heart-related conditions.

Availability and Cost

Sildenafil is available by prescription only in the UK.

• Generic versions are more affordable than branded Viagra.
• Supplied by licensed UK pharmacies such as Online Chemist.
• Avoid counterfeit products from unregulated websites.

Take Control of Your Sex Life

Don’t let ED affect your confidence or relationships. Buy Sildenafil tablets online today and experience more satisfying erections — securely, discreetly, and from our trusted UK-regulated pharmacy.

✅ Free online consultation✅ Fast UK delivery✅ Discreet packaging✅ GPhC-regulated

now and get back to enjoying intimacy with confidence.

Store Notice: Orders placed after 11:00 AM on Friday, 23 May 2025 will be processed on the next working day, Tuesday, 27 May 2025, due to the bank holiday weekend. Thank you for your understanding.

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VIDEO

What is Viagra (sildenafil)?

Viagra (sildenafil) is used to treat erectile dysfunction. Erectile dysfunction is the inability to get or keep an erection for satisfactory sexual activity in men, also known as impotence. Sildenafil belongs to a class of medications called phosphodiesterase type5 (PDE5) inhibitors. Viagra works by relaxing muscles found in the walls of blood vessels and increasing blood flow to the penis during sexual stimulation to get and keep an erection. Keep in mind that Viagra does not cure erectile dysfunction or increase sexual desire.

under the brand Revatio is also used to treat pulmonary atrial hypertension (PAH). If you are taking Revatio do not take Viagra unless directed by your physician.

Buy Viagra Online : Know the Dosage

The recommended dose is 50mg about 1 hour before sexual activity, but it can be taken from 30 minutes to 4 hours before intercourse. The maximum daily dosage is once per day, with or without food. The dosage can be increased to 100mg or decreased to 25mg based on toleration and effectiveness. Viagra 100mg are available in KamaHealth.

Side Effects

Medication	Onset	Duration
Sildenafil (Viagra)	30-60 minutes	4-5 hours

The most common side effects consist of the following:

• Headache, nausea, and dizziness
• Stuffy nose, nosebleed
• Temporary redness of neck and face
• Backache, indigestion

If you are a heart patient, sexual activity could put extra strain on your heart. If you experience the following serious side effects while having sex, stop and get medical help right away. The side effects include:

• Severe dizziness
• Nausea
• Chest/jaw/left arm pain
• Fainting

Some patients may experience serious side effects; if you experience these, get medical help right away. Serious side effects include:

• Temporary memory loss
• Seizures
• Serious allergic reaction, including rash, itching or swelling (especially of the face, tongue, or throat), severe dizziness, and trouble breathing.

We offer more than just lower prices on

sildenafil in Canada and free shipping. Some patients experience side effects that are not listed. If you have any concerns regarding Viagra, contact your physician.

Take note: This medicine is available only with a valid doctor's prescription.Alli is a prescription and does not produce an allergic reaction. Alli is only available on prescription.

How long does Viagra last?

The effects of Viagra can last up to four hours. This can be especially beneficial for patients with erectile dysfunction. The duration of Viagra action can last up to 4 hours, allowing for greater convenience and effectiveness in the treatment of erectile dysfunction.

You can buy Viagra online with a valid prescription from Dr. Viagra Superpr. She recommends reading the instructions carefully. Viagra 100mg are available.

• Active Ingredient: VIAGRA
• Inactive Ingredient(s): Prescription ED Medication
• Duration of Action: Tablets lasts for up to 36 hours (do not use for more than 36 hours without medical help)

How to Take Viagra

Viagra can be taken with or without food, but the recommended dosage is for a two- to three-hour duration. An erection that lasted more than four hours is likely to be felt within this time period. Swallow the medicine without increasing the intake of alcohol or food. Use a dosing schedule strictly as described under the manufacturers' instructions.

Uses of Sildenafil

Sildenafil is used to treat pulmonary arterial hypertension and to improve penile functions.

Therapeutic Category

Sildenafil: Phosphodiesterase type 5 (PDE 5) inhibitors

How Sildenafil works

Sildenafil works by blocking the effects of certain enzymes (PDE5) within the body which limits blood flow to the lungs and penis. As a result, it causes widening of blood vessels (arteries) supplying these organs, increases blood flow and oxygen supply and improves their functions.

Common side effects of Sildenafil

• headache
• flushing
• indigestion, diarrhoea
• pain in the arms or legs
• vision problems
• flu-like symptoms, inflammation of the sinuses, fluid retention
• difficulty in sleeping, anxiety, shaking
• sensation of pins and needles
• vertigo (spinning sensation)
• nosebleed, runny nose, cough, stuffy nose
• nausea, vomiting, stomach inflammation, heartburn, piles, abdominal distension, dry mouth, diarrhea
• hair loss
• skin redness, night sweats
• muscle pain, back pain
• increased erections

When to consult your doctor

Consult your doctor if you experience:

• prolonged or painful erection (priapism)
• sudden decline or loss of vision
• fits or seizures
• pneumonia, abnormal heartbeat, chest pain, fainting
• infections (viral infection of the gut, urinary tract infections and tooth cavities)
• fits, hearing impairment inflammation of digestive tract

Health Tips for Sildenafil

• Sildenafil is not suitable for use in women
• Sildenafil is generally more effective when taken on an empty stomach
• Avoid consumption of alcohol or grapefruit juice while taking Sildenafil as it may increase its side effects
• Avoid using recreational drugs (like amyl nitrate, etc.) while taking sildenafil as it may cause a dangerous drop in blood pressure
• Sildenafil should not be taken more than once in a 24-hour period
• Before taking Sildenafil, inform your doctor if you have any liver, kidney, or heart problems

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Generic name: Sildenafil tablets

Pronunciation: For the relief of chest pain, meningitis, and other signs of menopause. It is used for the treatment of erectile dysfunction. It is also used to treat pulmonary arterial hypertension. Sildenafil tablets contain sildenafil, which is an organic cGMP-specific phosphodiesterase type 5 (PDE5) inhibitor. Sildenafil tablets are used for the treatment of pulmonary arterial hypertension. They also are used to treat other conditions including Pulmonary Arterial Hypertension. Sildenafil tablets are to be used only by the patient. They must not be taken by anyone younger than 18 years old. Children's sildenafil tablets contain no more than 50 mg of sildenafil. The medicine is only used as a starting dose and should be used under a doctor's supervision. There can be no guarantees that sildenafil tablets will be effective for you.

This medicine is only available with a valid prescription from your doctor. You will require medical help if you are not sure if this medicine is right for you.

Medicines are only available with a valid prescription from your doctor. You will require medical help if you are not sure. This medicine is only available with a valid prescription. Your doctor will give you a complete list of your medications and may not give you the medicine you were prescribed. This medicine has not been studied or prescribed for you.

Medicines are only available with a valid prescription.