Your doctor may adjust your dose as needed. For treatment of pulmonary arterial hypertension:For oral dosage forms (suspension or tablets):Adults—20 milligrams (mg) 3 times a day. Your doctor may adjust your dose as needed and tolerated.

Advice To Patients

Make sure you tell your doctor if you have any other medical problems, especially: Abnormal penis, including a curved penis or birth defects of the penis—Chance of problems occurring may be increased and this medicine should be used with caution in these patients. Arrhythmia (irregular heartbeat, within the last 6 months) or Blood vessel problems (eg, aortic stenosis, idiopathic subaortic stenosis) or Heart attack (within the last 6 months) or Retinitis pigmentosa (an inherited eye disorder) or Stroke (within the last 6 months)—Should not be used in patients with these conditions. Crowded disc or low cup to disc ratio in the eye (an eye disorder) or Hyperlipidemia (high fats in the blood) or Non-arteritic anterior ischemic optic neuropathy or NAION (serious eye condition), history of or Retinitis pigmentosa (an inherited eye disorder) or Smoking—May increase the chance for a serious side effect in the eye called NAION. Stomach ulcer, or history of or—Chance of problems occurring may be increased. It is not known if the medicine is safe for use in these patients.

Drug forms and administration

The effects may be increased because of slower removal of the medicine from the body. Sickle-cell anemia (blood disorder)—Sildenafil should be used with caution in these patients as problems with prolonged erection of the penis may occur. Pulmonary arterial hypertension (high blood pressure in the lungs) or Pulmonary veno-occlusive disease or PVOD (a type of lung disease)—Use with caution. Use sildenafil exactly as sildenafil oral jelly 100mg lovegra directed by your doctor. Do not use more of it and do not use it more often than your doctor ordered.

Regional issues

If too much is used, the chance of side effects is increased. This medicine comes with a patient information leaflet. Read and follow these instructions carefully before you start using sildenafil and each time you get a refill of your medicine. Ask your doctor if you have any questions. You may take this medicine with or without food. However, the dose is usually not more than 80 mg 3 times a day.Children 1 year of age and older weighing 45 kilograms (kg) or more—20 mg 3 times a day. However the dose is usually not more than 40 mg 3 times a day.Children 1 year of age and older weighing 20 to 45 kg—20 mg 3 times a day.Children 1 year of age and older weighing 20 kg or less—10 mg 3 times a day.Children younger than 1 year of age—Use and dose must be determined by your doctor. For oral dosage forms (suspension or tablets):Adults—20 milligrams (mg) 3 times a day. Adults—20 milligrams (mg) 3 times a day. However, the dose is usually not more than 80 mg 3 times a day. Children 1 year of age and older weighing 45 kilograms (kg) or more—20 mg 3 times a day. However the dose is usually not more than 40 mg 3 times a day. Children 1 year of age and older weighing 20 to 45 kg—20 mg 3 times a day.

Product Dosage Quantity + Bonus Price
Viagra Generic25mg90 + 6 Pills105.03€ 100.03€
Viagra Generic25mg30 + 4 Pills47.97€ 45.69€
Kamagra Oral Jelly100mg10 Sachets54.55€ 51.95€
Viagra Generic150mg360 + 10 Pills423.48€ 403.31€
Kamagra100mg32 Pills121.24€ 115.47€
Kamagra Oral Jelly100mg220 + 18 Sachets662.24€ 630.70€
Kamagra100mg360 + 6 Pills839.95€ 799.95€
Kamagra100mg60 + 4 Pills201.34€ 191.75€
Viagra Generic25mg20 Pills37.74€ 35.94€
Kamagra Soft Tabs100mg272 + 12 Pills593.42€ 565.16€
Kamagra Oral Jelly100mg110 + 9 Sachets334.87€ 318.92€
Viagra Generic100mg180 + 8 Pills199.37€ 189.88€
Viagra Generic50mg120 + 6 Pills129.64€ 123.47€

Children 1 year of age and older weighing 20 kg or less—10 mg 3 times a day. Children younger than 1 year of age—Use and dose must be determined by your doctor.

What to avoid

If your dose is different, do not change it unless your doctor tells you to do so. The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine. For treatment of erectile dysfunction:For oral dosage form (tablets):Adults up to 65 years of age—50 milligrams (mg) as a single dose no more than once a day, 1 hour before sexual intercourse. Alternatively, the medicine may be taken 30 minutes to 4 hours before sexual intercourse.

Antihypertensive and α-Adrenergic Blocking Agents

Your doctor may adjust your dose if needed.Adults 65 years of age and older—25 mg as a single dose no more than once a day, 1 hour before sexual intercourse. Your doctor may adjust your dose if needed.Children—Use is not recommended.For oral dosage form (film):Adults up to 65 years of age—50 milligrams (mg) as a single dose no more than once a day, 1 hour before sexual intercourse. Your doctor may adjust your dose as needed.Adults 65 years of age and older—25 mg as a single dose no more than once a day, 1 hour before sexual intercourse. Your doctor may adjust your dose as needed.Children—Use is not recommended. For oral dosage form (tablets):Adults up to 65 years of age—50 milligrams (mg) as a single dose no more than once a day, 1 hour before sexual intercourse. For oral dosage forms (suspension or tablets): If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule.

Property Description Value Units
Molecular Weight The mass of one mole of sildenafil citrate 474.58 g/mol
Chemical Formula Molecular composition C22H30N6O4S
Solubility Water solubility Slightly soluble at 25°C
pH of Solution Typical pH when dissolved in water 3.8 - 4.2
Melting Point The temperature at which it melts 196 - 198 °C

Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep out of the reach of children. Do not keep outdated medicine or sildenafil citrates medicine no longer needed.

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Your doctor may adjust your dose if needed.Children—Use is not recommended. Adults up to 65 years of age—50 milligrams (mg) as a single dose no more than once a day, 1 hour before sexual intercourse. Your doctor may adjust your dose if needed. Adults 65 years of age and older—25 mg as a single dose no more than once a day, 1 hour before sexual intercourse. For oral dosage form (film):Adults up to 65 years of age—50 milligrams (mg) as a single dose no more than once a day, 1 hour before sexual intercourse. Ask your healthcare professional how you should dispose of any medicine you do not use.

Side Effect Severity Common Symptoms Frequency
Headache Mild to Moderate Throbbing pain, sensation of pressure Very common
Flushing Mild Skin redness, warmth Common
Dyspepsia (Indigestion) Mild Burning sensation in stomach Common
Visual disturbances Mild to moderate Blue tint, blurred vision Less common
Priapism Severe Prolonged and painful erection Rare

Store mixed oral liquid in the refrigerator.

  • Sildenafil citrate was first approved by the FDA in 1998.
  • Its brand name is Viagra, but generic versions are available.
  • The drug is available in tablets of various strengths, typically 25-100 mg.
  • It can be prescribed for both men and in specific cases, women.
  • Proper dosage varies based on health status and response.
  • Use caution in patients with heart problems or low blood pressure.
  • It is not a hormone or a testosterone booster.

Throw away any unused mixed Revatio® oral liquid after 60 days.

  • Sildenafil is unsuitable for individuals with severe liver disease.
  • Patients should avoid alcohol consumption during treatment.
  • Some side effects may resolve on their own within hours.
  • Persistent side effects should prompt medical consultation.
  • The drug does not cure ED but manages symptoms.
  • Lifestyle changes can also improve erectile function.
  • Follow your healthcare provider’s instructions precisely.

It is important that you tell all of your doctors that you take sildenafil. If you need emergency medical care for a heart problem, it is important that your doctor knows when you last took sildenafil.

Parameter Description Typical Value
Absorption Rate Time to reach peak plasma concentration 30-120 minutes
Bioavailability Percentage of dose reaching systemic circulation 40%
Half-life Time to reduce plasma concentration by half 4 hours
Metabolism Primary site of metabolism Liver (CYP3A4 enzyme)
Excretion Main routes of elimination Feces and urine

Do not use this medicine if you are also using a nitrate medicine, often used to treat angina or high blood pressure.

More about sildenafil

Weigh the potential benefits against the potential risks before taking this medication while breastfeeding. Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.

Does Viagra help with premature ejaculation?

Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take. Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines. Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you.

Is there a “female Viagra”?

Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Using this medicine with any of the following may cause an increased risk of certain side effects but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions about the use of food, alcohol, or tobacco. The presence of other medical problems may affect the use of this medicine. Some illegal ("street") drugs called "poppers" (such as amyl nitrate, butyl nitrate, or nitrite). Do not use this medicine if you also use riociguat (Adempas®). If you will be taking this medicine for pulmonary arterial hypertension, your doctor will want to check your progress at regular visits. This will allow your doctor to see if the medicine is working properly and to decide if you should continue to take it. If you take sildenafil for pulmonary arterial hypertension, do not take Viagra®, Vibrique™ or other PDE5 inhibitors, including tadalafil (Cialis®) or vardenafil (Levitra®). If you take too much sildenafil or take it together with these medicines, the chance for side effects will be higher.

  • Sildenafil binds to phosphodiesterase type 5 enzymes in tissues.
  • It was initially developed by Pfizer.
  • The drug’s patent expired in many countries, increasing generic availability.
  • It can improve quality of life for men with ED and pulmonary hypertension.
  • Discuss potential interactions and health conditions with your doctor.
  • Usage guidelines differ for ED and pulmonary hypertension treatment.
  • Follow the prescribed dose and avoid exceeding recommended limits.

It is important to tell your doctor about any heart problems you have now or may have had in the past.

  • Sildenafil citrate is manufactured by several pharmaceutical companies.
  • Its chemical formula is C22H30N6O4S.
  • It has a half-life of approximately 4 hours in the body.
  • The drug enhances nitric oxide activity in the corpus cavernosum.
  • It’s important to follow prescribed dosing to avoid adverse effects.
  • It is classified as a phosphodiesterase type 5 inhibitor.
  • Sildenafil was initially researched for angina before ED use.

This medicine can cause serious side effects in patients with heart problems. If you experience a prolonged or painful erection for 4 hours or more, contact your doctor immediately. This condition may require prompt medical treatment to prevent serious and permanent damage to your penis.

4. Bottom Line

Place the film on top of your tongue. It will dissolve in your mouth and can be swallowed with saliva without using water or other liquids. Shake the bottle well for at least 10 seconds before each use. Remove the cap by pushing it down and twisting it counter-clockwise. Push the plunger of the syringe, then insert the tip into the bottle while holding the bottle upright on a flat surface.

Elderly Precautions

Slowly pull back the plunger until the required dose. If you see air bubbles in the syringe, repeat the steps. Place the tip of the syringe into you or your child's mouth and point it towards the cheek. This medicine usually begins to work for erectile dysfunction within 30 minutes after taking it. It continues to work for up to 4 hours, although its action is usually less after 2 hours.

Oral Administration

Use only the brand sildenafil 20 mg prescription of this medicine that your doctor prescribed. Different brands may not work the same way. The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine.