The most common side effects of this medicine include headache, upset stomach, dizziness, and nervousness. In some cases, patients may also experience nausea, vomiting, and diarrhoea. It is important to note that this medicine can also cause mild diarrhoea in some cases. This is because it is not recommended for use in children. If you have a history of heart problems or a history of stroke or heart attack, you should not use this medicine.

The medicine is not recommended for women. However, it is important to talk to your doctor before taking this medicine if you are pregnant. You should also inform your doctor if you are breastfeeding, as this can affect the supply of the medicine to you. It is also important to note that this medicine may cause dizziness. If you have been taking this medicine for more than 6 hours, you should be careful not to experience any side effects.

It is also important to note that this medicine can cause dizziness. If you experience any of the following signs of dizziness, stop taking this medicine and get emergency medical attention: spinning sensation, lightheadedness, or feeling lightheaded if you feel this. If you have a fever or feel lightheaded, get medical help right away. The dose of this medicine is determined by the doctor and should not be changed or altered.

This medicine is available only with a doctor's prescription. It is not recommended for use in women.

This medicine contains an active ingredient called dapoxetine.

This medicine is not approved for use in children.

This medicine is not approved for use in women. It is not recommended for use in children.

What is this medication?

Sildenafil Citrate, marketed under the brand name Viagra, is a medication used to treat erectile dysfunction (ED) in men. It works by increasing blood flow to the penis, helping to achieve and maintain an erection during sexual stimulation.

How should this medicine be used?

Sildenafil Citrate comes as a tablet to take by mouth. It is usually taken as needed about one hour before sexual activity, but can be taken with or without food. It is important to take the medication at the same time every day to maintain stable blood levels of the drug in your body.

What are the possible side effects of this medication?

The most common side effects of Sildenafil Citrate include:

This medication may cause mild or significant dizziness or fainting. This is rare but can occur at any time during treatment.

Are there any drug interactions with this medication?

Sildenafil Citrate can interact with certain medications, especially nitrates found in some prescription drugs. Nitrates are compounds that are broken down by enzymes into form that are responsible for relaxing muscles and increasing blood flow to the penis. When used in combination with Sildenafil Citrate, these medications can cause a dangerous drop in blood pressure.

Can I take this medicine with nitrates used to treat angina?

This medication is not recommended for use by people with a history of heart attack, stroke, or high blood pressure. It should only be taken under medical supervision.

Can I use this medicine in combination with other erectile dysfunction treatments?

Sildenafil Citrate is not recommended for use in combination with other erectile dysfunction treatments. It is important to tell your doctor and pharmacist about all other medicines you are taking, including over-the-counter drugs and herbal products.

How should this medicine be stored?

Keep all medication out of reach of children and pets. Store at room temperature away from heat, moisture, and light.

What should I do if I miss a dose of this medication?

If you miss a dose of this medication, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and resume your usual dosing schedule. Do not take a double dose to make up for a missed one.

Product information

Sildenafil Citrate may cause mild or significant dizziness or fainting. This is rare, but can occur at any time during treatment.

Sildenafil Citrate may cause low blood pressure, especially when taken with nitrates found in some prescription drugs. This can lead to serious side effects, including hypotension, syncope, and sudden and severe dizziness.

Sildenafil Citrate may cause a drop in blood pressure, leading to dizziness, fainting, or other symptoms. This can be dangerous if you use this medication regularly or if you have heart problems or low blood pressure. If you experience any of these symptoms, immediately stop taking this medication, stop using other ED medications, and contact your doctor.

Can I use this medication with other erectile dysfunction treatments?

Although it is not recommended for use with other ED medications, it is important to tell your doctor and pharmacist if you are taking any other medications including over-the-counter drugs and herbal products. They may suggest other treatments for ED.

What if I miss a dose of this medication or I experience side effects?

Note: Other medications can affect how Sildenafil is processed in your body, potentially impacting its effectiveness. These include azole antifungals (such as itraconazole or ketoconazole), macrolide antibiotics (such as clarithromycin or erythromycin), HIV protease inhibitors (such as saquinavir), mifepristone, rifampin, and ritonavir.

Combining Sildenafil with other medications for erectile dysfunction (ED) or pulmonary hypertension, such as tadalafil or vardenafil, is harmful.

consultation with doctor

Alpha-blockers (such as tamsulosin or dapECT) are both PDE5 inhibitors that function similarly against Sildenafil. However, they are active in a different chemical compound compared to Sildenafil. It is not known if Sildenafil is a PDE5 inhibitor or whether it is involved in this comparison. (If you're taking any other medications that may interact with Sildenafil, stop taking them immediately after a consultation.

Lifestyle factors associated with increased blood pressure

associated with lower blood pressure

Several factors can contribute to lower blood pressure (and potentially other health conditions). Your age, medical history, and your current dose may play a a role, even if you don't see any connection with any of these factors. Your weight, diabetes, high blood pressure, muscle disease, depression, or heart disease may also play a role in your low blood pressure.

Talk to your doctor before taking Sildenafil if you:you have high blood pressure that is not controlled talks to your doctor about it, or you have heart disease or heart problems that may be a cause of your blood pressure, but you are not used to having high blood pressure every day. This is not necessarily a complete list of health conditions/contraindications/ precautions associated with Sildenafil.

High blood pressure often leads to dizziness or fainting, which is a serious health concern for many. Your doctor will consider how your health, medical history, and the severity of your blood pressure issues could be associated with the use of Sildenafil.

Using Sildenafil with nitrates is a riskier drug than using Sildenafil with other medications for ED. A lower dose of Sildenafil is recommended.

Avoid using Sildenafil with nitrates if you:

• have been diagnosed with an enlarged prostate
• have high blood pressure
• have an irregular heart beat
• have an eye disease called non-arteritic anterior ischemic optic neuropathy (NAION)
• have liver problems
• have kidney problems
• have any health conditions

This is not a complete list of health conditions/contraindications/ precautions associated with Sildenafil. So, if you are taking any of these medications, it's best to speak to your doctor instead.

Alpha-blockers (such as tamsulosin or dapECT) are also not safe with Sildenafil. A lower dose of Sildenafil (or any other PDE5 inhibitor) is recommended.

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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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

Inemarkreetings. A little about me. I am a 23-year-old-woman from Navi Mumbai, Maharashtra (India). I was diagnosed with pulmonary arterial hypertension (PAH) in 1985, and was initially treated with salicylates (oral) and ibuprofen (phenylalanine) as a prophylactic. I was started on sildenafil 50mg twice a day. Over time, it's been seen that I get the erection that I was supposed to get and am getting the erection that I have not.

I have been on sildenafil for over 5 years now, and in fact, I have tried different treatments. The most common ones I've tried include:

• anastrozole (200mg), taken 30 minutes before intercourse
• Ivermectin (400mg), taken 30 minutes before intercourse
• I donut pie (100mg), taken 30 minutes before intercourse

I've noticed that my erection goes away after taking sildenafil for a few hours. My next choice is to take another pill a day. After 3 months, the erection goes away, and I don't have to worry about it happening again. Now, with daily use, the erection goes away, and I don't have to worry about getting the erection that I have not. In fact, I've tried everything from condoms to tablets to injections, but nothing has worked for me.