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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Viagra can cause a dangerous drop in blood pressure, which can be deadly even if you get your hands on only a few drops. Symptoms of sudden dizziness or fainting include:

fainting

sudden loss of vision

udden loss of hearing

udden vision loss

high blood sugar in the blood vessels

If you experience any changes in your symptoms, contact your health care provider immediately.

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Viagra 100mg tablet contains an active component such as Sildenafil. This medication is used to treat erectile dysfunction (ED) in men. It contains the active ingredient sildenafil citrate, which belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors. It increases blood flow to the penis during sexual stimulation, which helps men achieve and maintain an erection. Viagra may have side effects, including headache, flushing, dizziness, upset stomach, nasal congestion, and vision changes. It should not be taken with certain medications or conditions, so it's crucial to consult a healthcare professional before using it. Erectile dysfunction can have a profound impact on a man's self-esteem and quality of life. By addressing ED, this medication can help improve a person's sense of well-being and overall happiness.

Individuals with a history of, such as heart problems (angina, heart failure, irregular heartbeats) or recent heart attack, should exercise caution when using Viagra. The sexual activity itself can strain the heart and can further increase the strain by increasing blood flow. Consult with a healthcare professional to assess the risks and benefits in such cases. This medication can cause a mild decrease in blood pressure. Caution is advised for individuals with low blood pressure or those taking medications that lower blood pressure, as combining these can lead to potentially harmful interactions. People with severe liver or kidney disease may experience slower elimination of Viagra from the body, leading to a prolonged effect. Dosage adjustments may be necessary in such cases.

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Viagra 100mg tablet may also interact with other medications, so it's crucial to discuss your full medical history with a healthcare professional before starting treatment with Viagra. If you notice any of the following symptoms, you should proceed to treatment: nausea severe headache vision changes back pain heart palpitations severe stomach pain dark urine runny oriating cough softeneric fever severe colitis upset stomach upset stomach diarrhoea itchyraised leg swellingRare side effects such as allergic reactions such as burning, irritation, or swollen ankles/feet, Stevens-Johnson syndrome* (right sided chronic liver disease) * (Allergic reactions such as rashes, difficulty breathing, swelling of ankles/feet, and diarrhea) * (Allergic reactions such as itching/swelling of the feet/feet/ ankles/ feetiked/added/increased/breathing was difficult to cure) * (Allergy) * (Heart problems (angina), diabetes, high blood pressure, certain heart attack symptoms, irregular heart rhythm, or myasthenia: any cause) * (Concerns * (high blood pressure), recent heart attack (within the past 6 months), strenuous physical activity (streight/baths), taken for heart attack (heart failure), or recent severe heart failure (within the past 6 months) * (high blood pressure), recent heart attack (within the past 6 months), reason for the attack (liver/ kidney disease, mental/ mood problems), taken for heart failure (paradoxia/ stress/ depression), taken with food (lactose) or medicine (diuretic) * (Concerns * (high blood pressure), low testosterone, smoking/ alcohol consumption), taken for heart failure (including claims that they can treat symptoms of heart failure), taken for kidney problems (kidney disease), or a history of breast cancer * (Concerns * (high blood pressure), recent heart attack (within the past 6 months), reason for the attack (liver/ kidney disease), taken for heart failure (paradoxia/ stress/ depression), taken for breast cancer (sperm decline), taken for kidney problems (kLearn)?s (obstructing/ enlargement), taken for breast cancer (liver/ kidney disease), taken for kidney problems (kidney disease), taken for prostate problems (oily stools), taken for prostate cancer (benign prostate cancer), or history of priapism

Severe reactions like Stevens-Johnson syndrome or* (right sided chronic liver disease) should be reported to your healthcare professional immediately. Be sure to mention your current medical conditions (such as diabetes, high blood pressure, heart failure) and medications (such as Kamagra-Cialis, exercise stress medication, Staxyn, Ergocalcis, Telaprevir, Nitrolingual, Zocor, Ritonavir, Propecia, duloxetine, and generic nitrates) and a valid prescription from your healthcare professional. In the event of a serious reaction, contact your healthcare professional immediately. In some cases, more immediate attention is needed. In such a case, discontinue use and seek medical assistance immediately. It is important to note that this medication does not work if there is no improvement in your condition.

Viagra (Sildenafil)

Sildenafil belongs to a group of medicines called phosphodiesterase 5 (PDE5) inhibitors. It is used to treat erectile dysfunction (impotence) in men. The medication helps improve blood flow to the penis, which can help men get and keep an erection. Sildenafil works by relaxing the blood vessels in the penis, allowing for increased blood flow and resulting in an erection. It should only be taken as prescribed by a doctor and should be taken about an hour before sexual activity, but it should not be taken more than once a day. Sildenafil is not approved for use in women.

Uses and how it works

Sildenafil is used to treat erectile dysfunction (impotence) in men.

How it works

Dosage and directions

You should take Sildenafil as directed by your doctor. Do not take more than once a day. Swallow the tablets with a full glass of water. If you are taking nitrates (used for chest pain) you should not take Sildenafil. If you are taking nitrates (used for angina or chest pain) you should take Sildenafil at least 1 hour before sexual activity.

Side effects

The most common side effects of Sildenafil include headache, flushing, indigestion, nasal congestion, back pain, muscle aches, indigestion, dizziness, stomach pain, dry mouth, flushing, abnormal vision, and rash. Sildenafil may also cause other side effects such as: allergic reactions (rash, itching, swelling, difficulty in breathing), changes in blood pressure, chest pain, fast/irregular heartbeat, changes in vision or speech, chest pain, back pain, fast/irregular heartbeat, muscle pain, indigestion, fever, fast/irregular heartbeat, unusual changes in vision, dizziness, dry mouth, nasal congestion, itching, swelling, sore throat, pain in arm, pain, swelling, red or purple spots in the whites of the eyes, sudden weight gain, sudden weight loss

Drug Interactions

Sildenafil is a PDE5 inhibitor. Other medications that may interact with Sildenafil include:

• Nitrates (medicines used for chest pain)
• Alpha-blockers (used to treat high blood pressure)
• Other PDE5 inhibitors (used to treat erectile dysfunction)

There may be other interactions with Sildenafil. Tell your doctor or pharmacist if you are not sure about any other medications or supplements you are taking. Sildenafil may interact with certain foods, medicines, or other substances. The Food and Drug Administration (FDA) has not verified whether sildenafil is safe and active in humans. Tell your doctor or pharmacist about all the medications you take, especially any medicines, vitamins, or supplements that you are taking. Do not start, stop, or change the dosage of any of your medications without your doctor’s approval.

Appointments:

• Drink plenty of water or alcohol to help keep your stomach hydrated.

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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• Menstruation problems

Less common side effects and serious side effects are usually treated by medical advice alone, or in combination with medicines like Sildenafil.

FAQs

Can I take sildenafil without a prescription?

Sildenafil can only be taken if you sides of physical problems, such as heart problems, heart attack, irregular heartbeats, or stroke; or if you have any medical conditions, so it is important to consult with a doctor.