Bioequivalence and Bioavailability of an Orodispersible Tablet of Sildenafil Citrate in Healthy Chinese Male Subjects

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. If you experience a sudden loss of vision in one or both eyes, contact your doctor immediately.

• Sildenafil use should be disclosed to your healthcare provider.
• Not suitable for men with severe cardiovascular conditions.
• Ask about possible drug interactions before starting.
• Adjustments may be needed for older adults.
• Timing of medication is important for maximum effect.
• Monitoring for side effects helps prevent complications.
• Stop using sildenafil if health issues arise.
• Always follow professional medical advice.

Check with your doctor right away if you have a sudden decrease in hearing or loss of hearing, which may be accompanied by dizziness and ringing in the ears.

5.2 Worsening Pulmonary Vascular Occlusive Disease

If you need emergency medical care for a heart problem, it is important that your doctor knows when you last took sildenafil. Do not use this medicine if you are also using a nitrate medicine, often used to treat angina or high blood pressure. 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.

Table 3.5.3: Ascent risk associated with various underlying medical conditions and risk factors

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. It is important to tell your doctor about any heart problems you have now or may have had in the past. This medicine can cause serious side effects in patients with heart problems. If you already use medicine for high blood pressure (hypertension), sildenafil could make your sildenafil oral jelly 100mg lovegra blood pressure go too low. Call your doctor right away if you have blurred vision, confusion, dizziness, faintness, or lightheadedness when getting up from a lying or sitting position suddenly, sweating, or unusual tiredness or weakness.

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This medicine does not protect you against sexually transmitted diseases (including HIV or AIDS).

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Children younger than 1 year of age—Use and dose must be determined by your doctor. 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. Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep out of the reach of children.

What Is the Maximum Safe Sildenafil Dosage?

Do not keep outdated medicine or medicine no longer needed. Ask your healthcare professional how you should dispose of any medicine you do not use. Store mixed oral liquid in the refrigerator. Throw away any unused mixed Revatio® oral liquid after 60 days. It is important that you tell all of your doctors that you take sildenafil. Use protective measures and ask your doctor if you have any questions about this.

• Sildenafil tablets 125 mg are available by prescription only.
• They work by inhibiting the PDE5 enzyme.
• Do not mix sildenafil with alcohol to avoid adverse effects.
• Use with caution if you have heart or liver conditions.
• Sildenafil may interact with certain antibiotics.
• Be aware of potential side effects like flushing.
• Take sildenafil about 30-60 minutes before activity.
• Avoid using grapefruit juice while on sildenafil.

Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.

Uses for Viagra

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. 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.

Can I take sildenafil every day?

Your doctor tablet sildenafil 50 mg 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. 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. Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Use Case	Description	Typical Dosage	Onset of Action	Duration
Erectile Dysfunction	Helps achieve and maintain erections during sex	125 mg	30-60 minutes	Up to 4-6 hours
Pulmonary Hypertension	Relieves high blood pressure in lung arteries	125 mg	15-30 minutes	4-6 hours
Off-Label Uses	Potential uses in other vascular conditions	Varies	Varies	Varies

Check with your doctor immediately if any of the following side effects occur: burning feeling in the chest or stomach burning, crawling, itching, numbness, prickling, "pins and needles", or tingling feelings decrease in amount of urine or the frequency of urination dizziness or lightheadedness, especially when getting up suddenly from a lying or sitting position dryness, redness, scaling, or peeling of the skin increase in the size of the pupil redness, burning, or swelling of the eyes redness, itching, or tearing of the eyes seeing shades of colors differently than before swelling of the face, hands, feet, or lower legs unusual feeling of burning or stinging of the skin Some side effects may occur that usually do not need medical attention.

• Sildenafil tablets 125 mg are manufactured by various brands.
• Always verify the authenticity of medication sources.
• Use only FDA-approved or certified pharmacies.
• Cost can vary based on brand and location.
• Generic versions are typically more affordable.
• Beware of counterfeit sildenafil products.
• Read customer reviews before purchasing online.
• Consult your doctor about the best brand for you.

These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

5.6 Adverse Reactions with the Concomitant Use of Ritonavir

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. 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.

How sildenafil is used

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. 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. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them: pain or tenderness around the eyes and cheekbones diarrhea or stomach cramps (severe or continuing) numbness or tingling of the hands, legs, or feet redness, soreness, swelling, or bleeding of the gums sensation of motion, usually whirling, either of one's self or of one's surroundings sexual problems in men (continuing), including failure to experience a sexual orgasm sores in the mouth and on the lips Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

• Sildenafil tablets 125 mg are often prescribed for pulmonary hypertension.
• The dosage can vary depending on the condition.
• It’s important to maintain open communication with your doctor.
• Alcohol consumption can impair sildenafil’s effectiveness.
• Avoid driving if you experience dizziness or vision problems.
• Use sildenafil exactly as prescribed to avoid complications.
• Do not share medication with others.
• Regular medical check-ups are recommended during use.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088. NDC Code(s): 68071-3862-1, 68071-3862-5, 68071-3862-6, 68071-3862-9 If you are a consumer or patient please visit this version. HIGHLIGHTS OF PRESCRIBING INFORMATION These highlights do not include all the information needed to use SILDENAFIL TABLETS safely and effectively. See full prescribing information for SILDENAFIL TABLETS.SILDENAFIL tablets, for oral useInitial U.S. Approval:1998RECENT MAJOR CHANGESWarnings and Precautions, Effects on the Eye ( 5.3) 08/2017INDICATIONS AND USAGESildenafil citrate is a phosphodiesterase-5 (PDE5) inhibitor indicated for the treatment of erectile dysfunction (ED).

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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. Slowly pull back the plunger until the required dose. If you see air bubbles in the syringe, repeat the steps.

5.8 Vaso-occlusive Crisis in Patients with Pulmonary Hypertension Secondary to Sickle Cell Disease

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. Use only the brand of this medicine that your doctor prescribed. Different brands may not work the same way. (1)DOSAGE AND ADMINISTRATIONFor most patients, the recommended dose is 50 mg taken, as needed, approximately 1 hour before sexual activity.

Warnings for Viagra

Your doctor may adjust your dose as needed and tolerated. 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.

Study 2: Sildenafil citrate with Doxazosin

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. However, Sildenafil tablets may be taken anywhere from 30 minutes to 4 hours before sexual activity ( 2.1)Based on effectiveness and toleration, may increase to a maximum of 100 mg or decrease to 25 mg ( 2.1)Maximum recommended dosing frequency is once per day ( 2.1)DOSAGE FORMS AND STRENGTHSTablets: 25 mg, 50 mg and 100 mg ( 3)CONTRAINDICATIONSAdministration of sildenafil tablets to patients using nitric oxide donors, such as organic nitrates or organic nitrites in any form.

Storage Condition	Details	Recommended Temperature
Temperature	Store in a cool, dry place	20-25°C
Container	Keep in original packaging to prevent moisture	Airtight container
Light Exposure	Protect from direct sunlight	Yes
Expiry Date	Check before use	Typically 2-3 years