Sildenafil

Sildenafil is a prescription medicine classified as a phosphodiesterase-5 (PDE5) inhibitor. It is primarily used to treat erectile dysfunction (ED) by improving blood flow to the penis during sexual stimulation, helping men maintain and achieve an erection suitable for sexual activity. In some cases, these tablets may also be used to treat pulmonary arterial hypertension (PAH) by relaxing blood vessels in the lungs and improving blood circulation.

Key information about Sildenafil is summarized below:

Sildenafil tablets are primarily prescribed for the treatment of erectile dysfunction (ED) in adult men. This condition affects the ability to achieve or maintain an erection suitable for sexual activity. Doctors may prescribe this medication for:

• Improving erectile response during sexual stimulation
• Helping maintain an erection long enough for satisfactory sexual activity

In certain medical settings, Sildenafil may also be used to treat pulmonary arterial hypertension (PAH) in adults. In this condition, the medication helps relax blood vessels in the lungs, improving blood flow and exercise capacity.

Sildenafil works by blocking an enzyme called phosphodiesterase type-5 (PDE5). The mechanism of action includes:

• Inhibiting the PDE5 enzyme
• Increasing levels of cyclic guanosine monophosphate (cGMP)
• Relaxing smooth muscle in blood vessels
• Improving blood flow to the penis during sexual stimulation

This increased blood flow to the penile tissues helps support and maintain an erection. These tablets do not cause an erection without sexual stimulation.

Follow your healthcare provider’s instructions when taking this medication.

For erectile dysfunction (ED):

• Take Sildenafil about 1 hour before sexual activity.
• Tablets may be taken 30 minutes to 4 hours before intercourse.
• Swallow the tablet with water.
• It can be taken with or without food.
• Do not take more than one dose per day.

For pulmonary arterial hypertension (PAH):

• Sildenafil tablets may be prescribed three times daily.
• Doses are typically taken 4-6 hours apart.

Do not change your dose or stop taking Sildenafil without consulting your healthcare provider.

The appropriate Sildenafil dosage depends on the patient’s condition, treatment response, and medical history. Your healthcare provider will determine the correct dose.

Adult dosage for erectile dysfunction (ED):

Adult dosage for pulmonary arterial hypertension (PAH):

Dosage adjustments for special populations:

Most patients begin with a 50 mg dose. Depending on effectiveness and tolerance, the dose may be reduced to 25 mg or increased to 100 mg.

Taking more Sildenafil than prescribed may increase the likelihood and severity of side effects. If an overdose occurs:

• Adverse reactions may be similar to normal side effects, but more frequent and more severe.
• Clinical studies have reported that single doses of up to 800 mg can increase the risk of side effects.
• Treatment generally involves supportive medical care and monitoring.
• Dialysis is not expected to effectively remove these tablets because the drug is highly bound to plasma proteins and is not eliminated in the urine.

Patients who may have taken too much Sildenafil should seek immediate emergency medical help or contact a poison control center.

Like all medications, Sildenafil tablets may cause side effects. Many reactions are mild and may improve as the body adjusts to treatment. However, some side effects may require medical attention.

Common Side Effects

Commonly reported Sildenafil side effects include:

• Headache
• Flushing (warmth or redness in the face)
• Upset stomach or indigestion
• Nasal congestion or a runny nose
• Back pain
• Muscle pain
• Nausea
• Dizziness
• Skin rash
• Nosebleeds
• Diarrhea
• Abnormal vision (such as blurred vision or a blue color tint)

Rare or Serious Side Effects

Seek immediate medical attention if you experience any of the following:

• Sudden hearing loss or ringing in the ears
• Sudden vision loss in one or both eyes
• Severe drop in blood pressure causing dizziness or fainting
• Priapism (an erection lasting longer than 4 hours)

Rarely, serious cardiovascular events such as heart attack, stroke, or irregular heartbeat have been reported in some patients taking Sildenafil. This is not a complete list of side effects. Contact your healthcare provider for medical advice about adverse reactions. You may report side effects to the FDA at 1-800-FDA-1088 or visit MedWatch.

Sildenafil has vasodilatory effects that may temporarily decrease blood pressure. Patients with cardiovascular conditions or those taking blood pressure medications should consult a healthcare provider before using this medication. It should not be used with nitrate medications, as this combination may cause a severe and potentially life-threatening drop in blood pressure.

What Are the Warnings for Sildenafil?

Important warnings associated with this medication include:

• Sudden hearing loss: Hearing loss or ringing in the ears may occur and requires immediate medical attention.
• Priapism risk: Prolonged erections lasting longer than four hours may cause permanent damage to penile tissue if not treated promptly.
• Severe hypotension risk: These tablets may significantly lower blood pressure, particularly in patients taking nitrates or certain antihypertensive medications.
• Drug interaction risk: Taking Sildenafil with other PDE-5 inhibitors or certain blood pressure medications may increase the risk of severe side effects.
• Vision loss (NAION): Sudden vision loss in one or both eyes may occur due to a rare optic nerve condition known as non-arteritic anterior ischemic optic neuropathy.
• Cardiovascular risk during sexual activity: Men with serious heart conditions may have increased cardiac risk during sexual activity while using erectile dysfunction medications.

What Are the Precautions for Taking Sildenafil Tablets?

Before using these tablets, inform your healthcare provider if you have:

• Heart disease, recent heart attack, stroke, or irregular heartbeat
• Low blood pressure or uncontrolled high blood pressure
• Liver or kidney disease
• Eye conditions such as retinitis pigmentosa or previous vision loss
• Anatomical deformities of the penis (such as Peyronie’s disease)
• Blood disorders such as leukemia, multiple myeloma, or sickle cell anemia
• Bleeding disorders or active stomach ulcers
• Current use of alpha-blockers, antihypertensive medications, or other PDE-5 inhibitors

Pregnancy and Breastfeeding

Sildenafil tablets are not indicated for use in females. There are limited data on its use during pregnancy, and animal studies have not shown harmful developmental effects. Sildenafil and its active metabolite may be present in human breast milk, and patients who are pregnant or breastfeeding should consult a healthcare provider before using this medication.

Sildenafil may interact with medications that affect blood pressure or alter its metabolism.

Patients should inform their healthcare provider about all supplements, over-the-counter drugs, and prescription medications they use before starting Sildenafil tablets.

Several medications may be used as alternatives for erectile dysfunction, depending on patient response and medical history.

Brand availability may vary depending on location and pharmacy supply. A healthcare provider will determine the most appropriate option based on the patient’s symptoms and treatment response.

Prescription medications for erectile dysfunction may be costly at many U.S. retail pharmacies. Ordering Sildenafil online from Polar Bear Meds may help reduce overall costs while maintaining safety, quality, and reliability.

• Pricing may be lower compared with some U.S. retail pharmacies.
• Medications sourced from licensed and reputable Canadian pharmacies.
• Properly dispensed prescription products under regulatory standards.
• Transparent pricing with no hidden fees.
• U.S. customers can order with a valid prescription.
• Simple online ordering with easy prescription upload.
• Discreet packaging with order tracking for added security.
• Shipping across the United States typically takes 3-5 business days via Xpress Post.
• Shipping timelines may vary depending on processing requirements and location.
• Dedicated customer support team to assist with prescriptions, orders, and delivery questions.
• Additional savings with coupon code WELCOMEPB10: 10% off your first order.

All Sildenafil orders require a valid prescription. Medications are dispensed by licensed pharmacies that comply with applicable pharmacy regulations and safety standards.

• https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=e4f41e9e-d508-4f91-8677-8a19b07139de
• https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=b48630b1-5208-4d00-b56f-21701f223758
• https://www.ncbi.nlm.nih.gov/books/NBK558978/