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About Viagra

What is Viagra?

Viagra is an effective FDA-approved medication used to treat erectile dysfunction (ED) in men. It contains a combination of sildenafil citrate and dapoxetine available in China. Viagra is an oral prescription medication and is the branded version that is sold in the UK and the rest ofablishing online sexual health. It is a generic drug and has been approved for sale in the UK.

Directions for Viagra

The recommended dose of Viagra is 50 mg taken about 1 hour before sexual activity, but it can still be taken to treat ED. Viagra should not be taken more than once a day. Doctors advise people in the UK for at least four hours.

Safety profile for Viagra

The overall picture about Viagra is that it is not working. It is not a cure but helps with the reoccurrence of ED. There is a possibility of experiencing ED with the use of ED screening, sex but not sexual activity, and with medications.

About dapoxetine

dapoxetine is a medication taken by and for men. It is one of the FDA-approved products for the treatment of ED. It is one of the most effective ED medications for the individual. Dapoxetine increases blood flow to the penis to improve erections and facilitate the blood flow into the penis.

How effective is Viagra?

Viagra is an effective medication for treating erectile dysfunction (ED) in men. It is taken orally with and without a break. It works by improving blood flow into the penis and the size of the phosphodiesterase type 5 (PDE5) enzyme. Dapoxetine works by increasing blood flow to the penis, which can help men who have ED get and keep an erection.

Why do men need sex with Viagra?

Dapoxetine is a medication for treating erectile dysfunction. It is also available in the form of pills. Dapoxetine should be taken around the same time as you open a new prescription in the first year of age. It is possible that the screening process for ED with Dapoxetine is similar for everyone.

Side effects of Viagra

Like any prescription, Viagra can cause side effects. However, not everyone who takes the medication will experience side effects.

Who should not take Viagra?

  • Women

    There are no problems with the general public taking Viagra. If you are pregnant or breastfeeding or are planning to have a baby, consult your doctor.

  • Sexual health professionals

    The FDA has given special attention to the following health professionals:

  • Allergy relief

    Dapoxetine is an allery orders from health professionals who are not usually prescribing medications.

  • Vision problems caused by dapoxetine

    Dapoxetine is known as a PDE5 inhibitor but the benefits may be extended if it is taken with a drink of water or juice.

How does Viagra work?

Viagra works by increasing blood flow to the penis. It does this by blocking an enzyme called PDE5. This enzyme is responsible for breaking down a substance known as cGMP (cGMP enzyme PDE5 inhibitors).

When the blood vessels in the penis are relaxed, blood flow is required for the body to make more erections. The increased blood flow helps with the erectile dysfunction symptoms.

How effective are Viagra tablets for treating your erectile dysfunction?

The ability to get an erection by taking Viagra is an effective treatment for erectile dysfunction (ED) in men. It is also good for reducing the one year after cardiovascular/heart attack screening in myocardial infarction (C-stroke) or getting older. However, it is not an effective treatment for Viagra's remediation of ED.

Last updated 14 September 2023

On 14 March 2023, the UK Medicines regulator approved an application to reclassify the erectile dysfunction medication Cialis. When marketed asCialis Together(tadalafil 10mg), it will be a ‘P’ (pharmacy) medication, and so available ‘over the counter’ in pharmacies – see. This follows the 2018, ‘P’ classification of (sildenafil 50mg) which has been available OTC, without a prescription, since then.

This decision is good news for men’s health …. Erectile dysfunction can be a debilitating condition, so it’s important men feel they have fast access to quality and legitimate care

Dr Laura Squire, MHRA’s Chief Officer for Healthcare, Quality and Access

Unfortunately, there is a strong black market in the UK for ED medicines, which are often unlicensed or counterfeit. UK Border Force and the MHRA seize millions of pounds of these fake products from criminals annually. This new classification of tadalafil 10mg will enable men who suffer from ED to obtain it safely from a local pharmacy.

Sanofi, the drug manufacturer, is expected to launch Cialis Together later in 2023. Cialis Together will be available to purchase in pharmacies without a prescription by men over 18 with erectile dysfunction. Cialis Together tablets will contain 10mg tadalafil and the maximum pack size will be 8 tablets. Other doses and pack sizes of Cialis and tadalafil will still be available on prescription through doctors and specially trained pharmacists. Before purchase in a pharmacy there must be an assessment with a pharmacist, who will check that Cialis Together is appropriate and safe, or whether consultation with a GP is necessary.

What does this mean for patients?

Men suffering with ED will have another treatment option with the convenience of purchasing it in their local pharmacy, including pharmacies found inside supermarkets (eg. Tesco, Asda, Sainsbury’s). The pharmacist will ask some health questions, may check blood pressure, and will advise on treatment with Cialis Together or Viagra Connect, or the need to consult a GP. Pharmacies usually have a private room for such discussions.

Cialis Together is a 10mg tadalafil product for use at least 30 minutes prior to anticipated sexual activity. Its effects can last. It is not recommended for daily use. The maximum recommended dose of Cialis Together will be one tablet in 24 hours. Prescription Cialis and tadalafil will still be available at different doses.

Dr Fox welcomes the wider access to ED medication for men that Cialis Together classified as a ‘P’ OTC medication will provide. We at Dr Fox are aware of the difficulties men have in discussing ED with their GPs and in accessing ED medication. We know that Cialis is effective and safe for most men and this change provides another option for obtaining ED treatment. Pharmacists are health professionals who are able to give ED advice but they will also know when to refer men who would benefit from a doctor’s assessment. ‘P’ medicines can also be supplied on prescription, and we will offer Cialis Together, when available, alongside our other competitively priced ED products.

Dr Claire Pugh, Dr Fox Medical Director

Categories of medicine

In the UK have 3 categories:

  • POM – Prescription only medicine:supplied by a healthcare professional following a consultation, usually on prescription.
  • P – Pharmacy medicine:supplied by a pharmacist ‘over the counter’, sometimes referred to as ‘P’ medicine or ‘PMED’.
  • GSL – General sales list medicine:available from many retail outlets ‘off the shelf’.
As with,, and so forth, this code will be used to identify all products that are advertised on these 3 medicines categories. The code will vary depending on the specific product and/or the way in which the product is marketed.Improper supply of general sales list medicines and medicines available in general sales list medicines

Is it safe to buy this medicine online?

It isnotthe effect of this medicine that we are speaking to directly about.

How to Buy VIAGRA from a Shop in Taiwan?

We are here to answer questions about the medication Viagra in Taiwan. This is an online consultation service that offers you an option to buy Viagra from a shop in Taiwan. To obtain Viagra in Taiwan, you need a prescription, and this consultation service can help you. You will be invited to a private consultation by a registered medical practitioner. You will be given a questionnaire and asked to provide your medical history and current medications. You will then be given an opportunity to discuss the benefits of taking Viagra if you are a person who is taking it for erectile dysfunction.

How does Viagra work?

Viagra works by relaxing the muscles in the blood vessels, which helps to widen the blood flow. This makes it easier for an erection to occur.

If you have any questions or concerns, we invite you to contact our customer service team. We are here to help. Please speak to one of our experienced pharmacists to find out more. If you have any questions or concerns, our customer service team is here to assist.

What should I do if I miss a dose?

If you miss a dose of Viagra, take it as soon as you remember. If it is near the time of the next dose, do not double the dose.

What can you do if I take too many pills?

If you take more than you should, do not use a pill cutter or other method of medication, as this could cause an overdose.

To be clear, if you have an erection that lasts longer than four hours, seek medical attention immediately. Please speak to a doctor about taking Viagra if you have any questions or concerns.

What if I take too much Viagra?

If you take more Viagra than your prescribed dose, it could result in an overdose. You must not take more than the prescribed dose to reach an overdose. If you are under 24, take Viagra only as needed. Do not take Viagra more often than is recommended by your doctor.

Can I buy Viagra in Taiwan?

We are offering an online consultation service called Viagra in Taiwan. This online consultation service will help you find the right medication for you. You will be able to buy Viagra from a shop in Taiwan and have it delivered directly to your home or workplace.

If you have any questions about buying Viagra from a shop in Taiwan, or about other treatment options available, please contact our customer service team. They will be happy to help. Our team members will answer any questions you may have about Viagra and will provide advice and support.

What are the possible side effects of Viagra in Taiwan?

Like all medicines, Viagra can cause side effects. The most common side effects are:

  • Headaches
  • Dizziness
  • Nausea
  • Flushing
  • Diarrhoea
  • Nasal congestion
  • Upset stomach

As with any medicine, Viagra can cause side effects.

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

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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.

ShareLikeReferences
  • Medicines & Healthcare products Regulatory Agency (MHRA): Sildenafil: A Prescription Drug. MHRA November 2024. Available at: (in Spanish) (Accessed 25 June 2025)
  • U. S. Food and Drug Administration (FDA): Drug Safety Communication. 21 May 2024.
Originalors

Edited byDr Kateléna Koppel

Licensed CMS

Licensed pharmacy certified online pharmacy by the U. drug regulator (USFDA).

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