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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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Last updated: 19 February 2025

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Sildenafil citrate is available by prescription only in the UK. Please ensure that you have a valid prescription from a licensed healthcare professional.

Availability and CIP

PurchasingYes, we currently offer Sildenafil citrate for $29.95. Please ensure that the advertised price is at least $15 per tablet. For further information, contact the manufacturer.

Viagra has been shown to cause some mild side effects. Talk to your health care provider if these do not go away within a few days. If you begin to experience more serious reactions, seek medical attention immediately.

Common side effects reported from Viagra use include:

  • Headache
  • Heartburn
  • Congestion
  • Nasal bleeding (bloody nose)
  • Nausea
  • Diarrhea
  • Muscle aches or pains
  • Flushing
  • Facial pain or tenderness
  • Vision changes
  • Light sensitivity

More severe side effects include:

  • Painful erections or erections that last longer than 4 hours
  • Sudden loss of vision
  • Sudden loss of hearing
  • Ringing in the ears
  • Chest pain
  • Shortness of breath
  • Painful urination
  • Increased urination frequency
  • Fainting
  • Dizziness
  • Skin rash
  • Hives
  • Facial swelling

If you experience any of these side effects, seek medical attention immediately. These are symptoms of a severe adverse reaction to this medication that require immediate treatment.

As with all prescription medications, inform your doctor of any medical conditions you currently manage. Tell them about any and all medications, prescription drugs, and supplements you are taking before starting treatment with Viagra. Viagra can interact with bodily substances, causing potentially serious adverse reactions.

Specifically, you should inform your health care provider of any nitrate medication you are taking. Remember to mention any herbal products you use, especially St. John’s wort.

In addition, let your doctor know if you have recently had heart surgery or experience chest pain during sex. If you experience any changes in your heartbeat or chest pain during sex, contact your health care provider immediately.

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As with all prescription medications, inform your doctor of any drug interactions you are taking before starting Viagra. This includes prescription drugs, non-prescription medications, and herbal products. Viagra can interact with drugs used for treating erectile dysfunction, such as nitrates.

If you have recently had heart surgery, you should not take Viagra if you:

  • are pregnant
  • are breast-feeding
  • are taking antacids
  • are taking riociguat or other guanylate cyclase stimulators
  • are a result of heart disease

As with all prescription medications, inform your doctor of any medical conditions you related to this medication history (such as depression, heart failure, heartburn, liver disease, or adrenal failure).

If you are taking a medicine that acts as a vasodilator, you should not take Viagra if you are taking nitroglycerin. Viagra can cause a drop in blood pressure if taken with other medications that treat hypertension, for example, nitroglycerin. As with all prescription medications, inform your doctor about any interaction with other medicines you are taking before starting Viagra.

Viagra can affect how it works, including increased blood pressure.

As with all prescription medications, inform your doctor if you are taking any other medications by doubling of course. You should take viagra with caution when using other erectile dysfunction medications, as it may cause side effects.

If you are taking any other medication, including non-prescription medications, rule out any drugummies. Your doctor should not increase or change your dose of any medication without proper consultation with your doctor.

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As with all prescription medications, inform your doctor if you are taking any other medications by taking a small amount of medication by mouth, without taking any other medications without fail. This may affect your ability to exercise your muscles.

FAQs About VIAGRA 100MG TABLET

Q: What is Viagra 100mg Tablet used for?

A: Viagra 100mg Tablet is primarily used to manage erectile dysfunction (ED) in men by increasing blood flow to the penis, helping men achieve and maintain an erection during sexual activity.

Q: Can I take Viagra 100mg Tablet without a prescription?

A: No, Viagra 100mg Tablet is a prescription medication and should only be used under the supervision of a healthcare provider. It is essential to consult a doctor to determine the appropriate dosage and ensure safety. Do not self-use Viagra or any ED pills without proper doctor consultation. FDA warns consumers not to use unapproved erectile dysfunction products as they may cause serious side effects like chest pain, fainting, etc.

Q: Is it safe to take Viagra 100mg daily?

A: No, Viagra 100mg should not be taken daily. It is typically used on an as-needed basis, with a recommended maximum dose of one tablet per day. Overuse can increase the risk of side effects.

Q: Is Viagra effective for erectile dysfunction?

A: Yes, Viagra is an effective for erectile dysfunction (ED) in men. It works by increasing blood flow to the penis, helping men achieve and sustain an erection when sexually stimulated.

Q: What is the best time to take Viagra for better results?

A: The best time to take Viagra is approximately 1 hour before sexual activity. However, it can be taken between 30 minutes and 4 hours in advance for optimal effectiveness. Avoid taking it right after a heavy meal, as it may delay its onset.

Q: How much Viagra should I take in a day?

A: The maximum recommended dose of Viagra is 100mg per day. Do not take more than one dose within a 24-hour period. Always follow your doctor’s recommendations.

Q: Can I split a Viagra 100mg tablet?

A: It is generally not recommended to split a Viagra 100mg tablet unless instructed by your doctor. If a lower dose is required, your doctor may prescribe a 50mg or 25mg dose instead.

Q: Can Viagra cause heart problems?

A: Viagra can cause a drop in blood pressure, which may be risky for people with certain heart conditions, especially if taken with nitrates or other medications for heart disease. Always consult a doctor before using Viagra if you have a history of heart problems.

Q: Does Viagra cause sudden vision loss?

A: In rare cases, Viagra has been associated with sudden vision loss due to a condition called non-arteritic anterior ischemic optic neuropathy (NAION). If you experience sudden vision changes or loss, stop taking Viagra and seek immediate medical attention.

Q: Is Viagra safe for older adults?

A: Viagra can be safe for older adults, but dosage adjustments may be necessary, especially if they have underlying health conditions like heart disease or liver problems. It’s important for older adults to consult their doctor before using Viagra.

Q: Are there any specific Viagra 100mg side effects in men?

A: Common side effects in men taking Viagra 100mg may include headache, flushing, dizziness, blurred vision, and indigestion. If any side effects persist or cause discomfort, consult your doctor.

Q: How long does it take for Viagra to work?

A: Viagra typically starts working within 30 minutes to 1 hour after ingestion. The exact time may vary depending on factors like food intake, metabolism, and individual response.

Q: How long do the effects of Viagra last for?

A: The effects of Viagra generally last for about 4 to 5 hours. However, the duration may vary depending on the individual, and Viagra will only work with sexual stimulation.

This kind of information is at your primary care physician’s consultation, especially for older adults who may be at risk.</This content is for reference purposes all all user-generated content, DTCL, DTCL-generated content, and any DTCL references, unless specifically cited as an alternative content.

Viagra Connect is available in Ireland for erectile dysfunction treatment which does not require a prescription. The first of its kind, Viagra Connect is a safe and discreet over-the-counter medication that can legally be bought online or over the counter in your pharmacy, without a trip to your doctor.

We need to ensure that this medicine is suitable for the person it is intended for. Therefore, it should only be purchased by the person taking it.

You can select your convenient store to collect your product and fill in the online form required.APharmacist will contact you to let you know your product is ready for collection, or you can buy onlineand complete the questions included.

When purchased online, a pharmacist will contact you by phone if they have any further questions and to advise you on the safe use of this medicine. If they are unable to speak to you when required your order may be delayed or the pharmacy medicine part of your order cancelled.

Please ensure your contact details are correct before ordering this medicine.Suitable for

Viagra Connect is for men 18 years and older who have difficulty getting and/or keeping an erection hard enough for sex

Age RestrictionYou must be at least 18 years old to purchase this product.

Directions for use:

Please read the enclosed leaflet carefully before use.

• take 1 tablet approximately one hour before sexual activity• swallow tablet whole with water• do not take more than 1 tablet a dayViagra Connect starts to work within 30-60 minutes. You may take it up to 4 hours before sexual activity.

Hazards and Cautions

Do NOT take if you:

  • do not have an erection problem
  • take any nitrate medicine for chest pain or heart failure
  • take riociguat (or other guanylate cyclase stimulators) for high blood pressure in the lungs
  • take ritonavir for the treatment of HIV
  • have been advised by your doctor to avoid sexual activity because of a problem with your heart or blood vessels
  • have a severe heart or liver problem
  • have low blood pressure
  • have ever had severe vision loss or a rare inherited eye disease
  • have a deformed penis
  • have an allergy to any of the ingredients in this product

Talk to your pharmacist or doctor before taking if you:

  • get very breathless or feel chest pain with light or moderate physical activities
  • have a heart problem
  • have high blood pressure that is not controlled
  • take any other medicines listed in the package leaflet
  • take any other treatment for erectile dysfunction
  • ever had a persistent erection that lasted for more than 4 hours
  • have a stomach ulcer or bleeding disorder
  • have diagnosed mild to moderate liver problems
  • have diagnosed severe kidney problems
Thisall includes any non-prescriptioncohol down products, alcohol-containingHelp> More than once a week

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