Sildenafil Teva
From £3.99
Viagra is one of the best known medicines for erectile dysfunction (ED), but there are still plenty of myths about what it does, how it works and how safe it is. Stories, jokes and information shared online can make it difficult to know what is actually true. This can leave some men unsure about seeking help for ED, even though it is a common condition with several treatment options.
This guide looks at some of the most common myths about Viagra and sildenafil tablets and explains what UK prescribing information and clinical guidance say. It also covers how to access treatment safely through a registered UK online pharmacy, what an online consultation involves and when it is important to speak with a healthcare professional.
We will also look at why erectile dysfunction can happen, how sildenafil compares with other PDE5 inhibitors and some of the practical safety questions you may have, including how to recognise a legitimate online pharmacy and what you can expect from a confidential online service.
Key things to know
- Viagra works alongside sexual stimulation. It does not cause an automatic erection
- Sildenafil is not suitable for everyone. It must not be taken with nitrate medicines, and some people with certain heart or other health conditions may need further assessment
- Generic sildenafil contains the same active ingredient, sildenafil, as branded Viagra at the corresponding strength
- Legitimate UK pharmacies supplying prescription sildenafil require an appropriate clinical assessment before dispensing
- Erectile dysfunction can have different causes, including physical and psychological factors, and treatment is not limited to tablets
Understanding Sildenafil and PDE5 Inhibitors
Sildenafil belongs to a group of medicines called phosphodiesterase type 5 (PDE5) inhibitors. During sexual arousal, the body naturally releases nitric oxide. This helps relax the blood vessels in the penis and increase blood flow, which is part of the process involved in achieving an erection.
An enzyme called PDE5 helps break down this process. Sildenafil inhibits PDE5, which can help support blood flow to the penis when sexual stimulation has already begun.
This distinction is important. Sildenafil does not create sexual desire or arousal on its own. Sexual stimulation is still needed for it to work.
Other PDE5 inhibitors, including tadalafil and vardenafil, work in a similar way, although they differ in factors such as how quickly they start working and how long their effects may last. Your prescriber can help you decide which treatment may be suitable based on your health, other medicines, treatment preferences and individual circumstances.
Viagra Myths at a Glance
| Myth | Fact |
|---|---|
| Viagra causes an automatic erection | It only works alongside natural sexual arousal |
| It's dangerous for most men's hearts | It's contraindicated in specific groups, not everyone |
| Side effects are severe and common | Most reported effects are mild, such as headache or flushing |
| Generic sildenafil is weaker than Viagra | Same active ingredient, same dose, same regulatory standard |
| Everyone responds the same way, every time | Response varies by person, dose, and circumstances |
| Taking extra tablets works faster or better | It raises the risk of side effects without added benefit |
Common Viagra Tablet Myths Explained
Myth 1: Viagra Causes Instant, Automatic Erections
This is one of the most common misunderstandings about Viagra. Sildenafil citrate, the active ingredient in both Viagra and generic sildenafil, is a PDE5 inhibitor. It supports increased blood flow to the penis, but sexual arousal is still needed for it to work. Without sexual stimulation, Viagra does not cause an erection on its own.
If you are wondering how long Viagra takes to work, it usually starts working within 30 to 60 minutes. Its effects may last for around 4 hours, although this varies between individuals. Timing can also matter. For example, a high fat meal may delay absorption, while factors such as stress or feeling distracted may affect sexual response.
Myth 2: Viagra Tablets Are Dangerous and Cause Heart Attacks
Sildenafil can affect blood pressure, which is why a medical assessment is important before treatment. Viagra is not generally considered to cause heart attacks simply because someone takes it, but sexual activity itself can place additional strain on the heart. This is particularly important for people with certain cardiovascular conditions.
Sildenafil must not be taken with nitrate medicines, such as GTN spray, or recreational nitrates. Combining them can cause a serious and potentially dangerous drop in blood pressure. Sildenafil may also be unsuitable for some people with certain cardiovascular conditions, very low blood pressure, or a recent stroke or heart attack.
This is why a UK registered prescriber will review your medical history and current medicines before prescribing sildenafil. If you have any concerns about your heart health or whether sildenafil is suitable for you, discuss them with your healthcare professional.
Myth 3: All Side Effects Are Severe and Unbearable
It is understandable to have concerns about side effects, but many of the commonly reported effects of sildenafil are mild. These can include headache, facial flushing, indigestion and nasal congestion. Side effects can vary from person to person and may be more noticeable at higher doses.
Serious side effects are uncommon, but some symptoms require urgent medical attention. Seek urgent medical help if you experience:
- An erection lasting more than 4 hours, which can be a sign of priapism
- Sudden loss of vision or hearing
- Chest pain during or after sexual activity
If you experience side effects that are persistent, severe or worrying, speak with your prescriber. They can advise whether a different dose or treatment may be more suitable.
Myth 4: Generic Sildenafil Is Inferior to Branded Viagra
Generic sildenafil and branded Viagra contain the same active ingredient, sildenafil citrate, at the corresponding strengths. Approved generic medicines must meet the relevant UK requirements for quality, safety and effectiveness and demonstrate bioequivalence before they can be supplied.
The main differences are usually the manufacturer, branding and price. Generic sildenafil is often less expensive than branded Viagra, but this does not mean that it contains a different active ingredient.
At EveryDayMeds, you can choose between branded Viagra and generic sildenafil where both are available and appropriate following your clinical assessment.
Myth 5: Viagra Works Perfectly for Everyone, Every Time
Sildenafil can help many men with erectile dysfunction, but individual responses vary. It is not guaranteed to work in exactly the same way for everyone or on every occasion.
Factors such as a high fat meal, alcohol, stress, anxiety and underlying health conditions can affect how well treatment works. A high fat meal can delay the absorption of sildenafil, while drinking a lot of alcohol may make it more difficult to achieve an erection.
Sildenafil is available in 25mg, 50mg and 100mg strengths. Some people may be prescribed a lower dose depending on their health, other medicines and how they respond to treatment. Your prescriber should decide which strength is appropriate for you. Do not increase your dose yourself if you feel the treatment is not working as expected. Instead, speak with your prescriber about your options.
Myth 6: Taking More Than Prescribed Improves Results
Taking more sildenafil than prescribed does not guarantee a better or faster effect and can increase the risk of side effects. The maximum recommended dose for erectile dysfunction is 100mg in a 24 hour period.
Do not take more than your prescribed dose, even if you feel that the medicine has not worked as expected. You should also not combine sildenafil with other erectile dysfunction medicines unless your prescriber specifically advises you to do so.
If your prescribed dose is not giving you the response you expected, speak with your prescriber. They can assess whether your dose, treatment or any other factors need to be reviewed.
Myth 7: Buying Viagra Online in the UK Means Skipping a Prescription
Viagra and sildenafil are prescription only medicines (POMs) in the UK, whether you obtain them from a high street pharmacy or an online pharmacy. A legitimate online service should have an appropriate clinical assessment before a prescription medicine is supplied.
This may involve completing a medical questionnaire that is reviewed by a UK registered prescriber. The prescriber can then decide whether the treatment is suitable and which dose, if any, may be appropriate.
Be cautious of websites offering Viagra or sildenafil without any medical assessment. You should also check that the pharmacy or service you use is properly registered and authorised to supply medicines in the UK.
Viagra Connect is also available from legitimate UK pharmacies following an appropriate assessment.
What Causes Erectile Dysfunction, and When Should You Seek Treatment?
Erectile dysfunction can have several possible causes, and it is not only something that affects older men. Physical factors can include reduced blood flow, diabetes, high blood pressure and high cholesterol. Hormonal factors, including low testosterone, may also play a role.
Psychological factors such as stress, anxiety, low mood and relationship difficulties can contribute too. In some cases, physical and psychological factors occur together.
Lifestyle factors, including smoking, excessive alcohol consumption, low physical activity and being significantly overweight, may also contribute to erectile difficulties. Some medicines, including certain blood pressure medicines and antidepressants, can also list erectile dysfunction as a possible side effect.
If erection problems continue for several weeks, happen regularly or are affecting your confidence or relationships, it is worth speaking with a healthcare professional. Erectile dysfunction can sometimes be linked to underlying health conditions, including cardiovascular disease, so an assessment can be useful beyond treating the symptoms alone.
Treatment is not limited to tablets. Depending on the cause, managing an underlying health condition, making lifestyle changes, psychological support and non medicine options such as vacuum erection devices may all be considered. Your healthcare professional can help you understand which options may be suitable for you.
Viagra vs Sildenafil: What's Actually the Difference
Beyond the myth that generic sildenafil is weaker, it helps to see the two side by side.
| Viagra (branded) | Sildenafil (generic) | |
|---|---|---|
| Active ingredient | Sildenafil citrate | Sildenafil citrate |
| Available strengths | 25mg, 50mg, 100mg | 25mg, 50mg, 100mg |
| How it works | PDE5 inhibitor | PDE5 inhibitor, identical mechanism |
| Regulatory standard | UK licensed medicine | UK licensed medicine, bioequivalent |
| Typical price | Higher | Lower |
The choice between the two usually comes down to budget and personal preference rather than any difference in effectiveness.
How to Get Viagra or Sildenafil Safely Online in the UK
What Happens During an Online Consultation
A genuine online consultation for erectile dysfunction will ask about your general health, current medicines and relevant medical history, including heart and blood pressure conditions. A UK registered prescriber reviews this information and decides whether treatment is suitable and, if appropriate, which medicine and strength may be right for you.
Viagra is licensed for use in adult men aged 18 and over, subject to a suitability assessment by a healthcare professional. The consultation is an important part of the process because it helps identify medical conditions, medicines or other factors that could make sildenafil unsuitable.
The consultation is usually straightforward and can often be completed online in a few minutes. If the prescriber needs more information, they may ask follow up questions before making a prescribing decision.
How to Recognise a Genuine UK Online Pharmacy
Before buying Viagra or sildenafil online, check that the pharmacy:
- Is registered with the General Pharmaceutical Council (GPhC), where applicable
- Requires an appropriate clinical assessment before supplying prescription only medicines
- Provides a UK registered business address and clear contact details
- Clearly identifies the pharmacy and the healthcare professionals involved in your care
A legitimate online pharmacy can provide discreet packaging without avoiding the required clinical checks. Be cautious of websites offering Viagra or sildenafil with no medical questions or assessment. This can be a warning sign that the service is not following the appropriate requirements for supplying prescription medicines.
Sildenafil Side Effects: What You Should Know
Common Side Effects
Common side effects of sildenafil include headache, facial flushing, indigestion and a blocked or runny nose. Side effects can vary between individuals and may be more noticeable at higher doses.
If side effects are troublesome, persistent or worrying you, speak with your prescriber. They can advise whether your dose or treatment should be reviewed.
Serious Side Effects That Need Urgent Medical Help
Some symptoms require urgent medical attention. Seek immediate medical help if you experience:
- An erection lasting more than 4 hours
- Sudden loss or changes in vision or hearing
- Chest pain during or after sexual activity
These effects are uncommon, but they should not be ignored if they occur.
When to Speak to a Doctor or Pharmacist
This page is intended to provide general information and does not replace an individual clinical assessment. Speak with a prescriber or GP before taking Viagra or sildenafil if you have heart or circulation problems, take nitrate medicines, use other medicines or treatments that may interact with sildenafil, or are unsure whether it is suitable for you.
You should also tell your prescriber about any other medicines or supplements you take, as well as relevant health conditions. If you regularly drink grapefruit juice, mention this during your consultation because grapefruit can affect sildenafil levels.
Do not start, stop or change your dose without medical advice. Sildenafil is generally taken when needed rather than as a daily treatment for erectile dysfunction, unless your prescriber has advised otherwise.
If you experience an erection lasting more than 4 hours, sudden vision or hearing loss, or chest pain during or after sexual activity, seek urgent medical attention.
Ready to explore your options? Start your online consultation to speak with a UK registered prescriber and find out whether Viagra or sildenafil may be suitable for you.
Available Treatments
| Treatment | Price from |
|---|---|
| Sildenafil | £3.99 |
| Viagra Connect | £21.99 |
| Cialis Together | £16.99 |
| Spedra | £22.99 |
| Viagra | £27.99 |
| Vardenafil | £27.99 |
| Levitra | £32.99 |
| Tadalafil | £34.99 |
| Cialis | £44.99 |
| Cialis Daily | £89.99 |
Prices update live and may change.
Medical Disclaimer
This page provides general information about Viagra and sildenafil, including common myths, how these medicines work, and important safety considerations. It is not a substitute for personalised medical advice, diagnosis or treatment.
If you experience an erection lasting more than 4 hours, sudden changes in vision or hearing, or chest pain during or after sexual activity, seek urgent medical attention.
If you have questions about your treatment, existing health conditions, or other medicines you take, speak with your doctor, pharmacist or prescriber. They can provide advice based on your individual circumstances.
