Label: SILDENAFIL tablet

Some products that may interact with this drug are: Sildenafil can cause a serious drop in your blood pressure when used with nitrates. A serious drop in blood pressure can lead to dizziness, fainting, and rarely heart attack or stroke.

Medication Type	Interaction Effect	Risk Level	Recommendation
Nitrates	Severe hypotension	High	Do not combine
Alpha-blockers	Increased risk of blood pressure drop	Moderate	Use under medical supervision
CYP3A4 inhibitors	Increased sildenafil levels	Moderate	Adjust dose or avoid
Ritonavir	Elevated risk of side effects	High	Consult healthcare provider

Do not use sildenafil with any of the following: certain drugs used to treat chest pain/angina (nitrates such as nitroglycerin, isosorbide) recreational drugs called "poppers" containing amyl or butyl nitrite If you are also taking an alpha blocker medication (such as doxazosin, tamsulosin) to treat an enlarged prostate/BPH or high blood pressure, your blood pressure may get too low which can lead to dizziness or fainting. Your doctor may adjust your medications to minimize your risk of low blood pressure.

8.2 Lactation

Before taking sildenafil, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history, especially of: heart problems (such as heart attack or life-threatening irregular heartbeat in the past 6 months, chest pain/angina, heart failure) penis conditions (such as angulation, fibrosis/scarring, Peyronie's disease) conditions that may increase the risk of priapism (such as sickle cell anemia, leukemia, multiple myeloma) eye problems (such as retinitis pigmentosa, sudden decreased vision, NAION) other lung conditions (such as pulmonary veno-occlusive disease) This drug may make you dizzy or cause vision problems. Alcohol or marijuana (cannabis) can make you more dizzy. Other medications can affect the removal of sildenafil from your body, which may affect how sildenafil works.

• Sildenafil 20 mg tablets are used primarily to treat erectile dysfunction.
• They work by increasing blood flow to the penis.
• Typically, the medication is taken 30-60 minutes before activity.
• The effects of sildenafil can last up to 4-6 hours.
• Do not take more than one tablet per day.

Do not take this medication with any other product that contains sildenafil or other similar medications for erectile dysfunction-ED or pulmonary hypertension (such as tadalafil, vardenafil). If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away.

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US residents can call 1-800-222-1222.

Use Case	Description	Typical Dosage	Notes
Treatment of Erectile Dysfunction	Improves blood flow to the penis	20 mg as needed	Taken 30-60 minutes before sexual activity
Pulmonary Hypertension	To reduce blood pressure in lungs	20 mg thrice daily	Prescribed by doctor
Off-label Uses	Potential treatment for other conditions	Varies	Under medical supervision

Canada residents can call 1-844-764-7669.

What Are Warnings and Precautions for Sildenafil?

Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. 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. Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

Does sildenafil interact with foods or drinks?

Generic name:Sildenafil 20 mg (lungs) - oral Generic name:Sildenafil 20 mg (lungs) - oral Sildenafil is used to treat high blood pressure in the lungs (pulmonary hypertension). It works by relaxing and widening the blood vessels in your lungs which allows the blood to flow more easily. Decreasing high blood pressure in the lungs allows your heart and lungs to work better and improves your ability to exercise. This section contains uses of this drug that are not listed in the approved professional labeling for the drug but that may be prescribed by your health care professional. Use this drug for a condition that is listed in this section only if it has been so prescribed by your health care professional. Symptoms of overdose may include: severe dizziness, fainting, painful/prolonged erection.

Comparing Which Works Faster

To help you remember, take it at the same times each day. Tell your doctor if your condition does not get better or if it gets worse. Dizziness, lightheadedness, headache, flushing, stomach upset, nosebleeds, trouble sleeping, or swollen hands/ankles/feet (edema) may occur. Vision changes such as increased sensitivity to light, blurred vision, or trouble telling blue and green colors apart may also occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.

Allergy warning

To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position. Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Rarely, sudden decreased vision, or even permanent blindness, may occur in one or both eyes (NAION). If this serious problem occurs, stop taking sildenafil and get medical help right away. Do not share this medication with others. Lab and/or medical tests (such as eye exams, blood pressure) may be done while you are taking this medication.

• Sildenafil was originally developed as a treatment for hypertension.
• The 20 mg dose is considered a moderate dosage.
• It can be part of a comprehensive erectile dysfunction treatment plan.
• Regular use should be monitored by a healthcare professional.
• The medication should not be used with other ED drugs simultaneously.

If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose.

Medical uses

Do not drive, use machinery, or do anything that needs alertness or clear vision until you can do it safely. Talk to your doctor if you are using marijuana (cannabis). Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products). During pregnancy, sildenafil should be used only when clearly needed. Since high blood pressure in the lungs is a serious condition that can harm both a pregnant woman and her unborn baby, do not stop taking this medication unless directed by your doctor. Take your next dose at the regular time. Do not double the dose to catch up.

• Sildenafil 20 mg tablets are available by prescription only.
• Common side effects include headaches, flushing, and nasal congestion.
• It is important to follow the prescribed dosage for safety.
• Avoid alcohol and high-fat meals when taking sildenafil.
• Consult a doctor if you experience sudden vision loss.

Store at room temperature away from light and moisture. Keep all medications away from children and pets.

5.4 Visual Loss

Sildenafil is also available in other brands and other strengths for erectile dysfunction-ED in men. Read the Patient Information Leaflet if available from your pharmacist before you start taking sildenafil and each time you get a refill. If you have any questions, ask your doctor or pharmacist. To treat high blood pressure in the lungs, take this medication by mouth with or without food as directed by your doctor, usually 3 times a day. The dosage is based on your medical condition, response to treatment, and other medications you may be taking.

Some side effects can be serious. If you experience any of the following symptoms, call your doctor immediately:

Be sure to tell your doctor and pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products). Children's dosage is also based on weight. Do not increase your dose or take this drug more often than prescribed. Your condition will not improve any faster, and your risk of side effects will increase. Take this medication regularly to get the most benefit from it. Do not flush medications down the toilet or pour them into a drain unless instructed to do so.

Non-medical use

You have a slightly greater chance of developing NAION if you have heart disease, diabetes, high cholesterol, certain other eye problems ("crowded disk"), high blood pressure, if you are over 50, or if you smoke. Rarely, a sudden decrease or loss of hearing, sometimes with ringing in the ears and dizziness, may occur. Stop taking sildenafil and get medical help right away if these effects occur. Rarely, males may have a painful or prolonged erection lasting 4 or more hours. If this occurs, stop using this drug and get medical help right away, or permanent problems could occur.

Before taking sildenafil,

Get medical help right away if you have any very serious side effects, including: increased shortness of breath or trouble breathing A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: itching/swelling (especially of the face/tongue/throat) This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. You may report sildenafil 50mg tablet side effects to FDA at 1-800-FDA-1088 or at In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345. Properly discard this product when it is expired or no longer needed.

8.4 Pediatric Use

If you are planning pregnancy, become pregnant, or think you may be pregnant, discuss with your doctor right away the benefits and risks of using this medication during pregnancy. Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. Consult your pharmacist or local waste disposal company. HOW TO USE THIS INFORMATION: This is a summary and does NOT have all possible information about this product. This information does not assure that this product is safe, effective, or appropriate for you. This information is not individual medical advice and does not substitute for the advice of your health care professional. Always ask your health care professional for complete information about this product and your specific health needs.

• Sildenafil 20 mg is one of several available dosages.
• Be aware of potential side effects like dizziness and nausea.
• Inform your doctor about any heart history before use.
• Do not take sildenafil if you have recently had a stroke.
• Follow instructions precisely to ensure safe and effective use.

Selected from NATIONAL DRUG DATA FILE (NDDF) data included with permission and copyrighted by First Databank, Inc., 2019. This copyrighted material has been downloaded from a licensed data provider. The above information is intended to supplement, not substitute for, the expertise and judgment of your health care professional. You should consult your health care professional before taking any drug, changing your diet, or commencing or discontinuing any course of treatment. If you can't find what you were looking for, please contact us using one of the methods below so we can better serve you.

Side Effect	Frequency	Severity	Management Tips
Headache	Common	Mild	Hydration, pain relievers
Flushing	Common	Mild	Cool environment, relaxation
Nasal Congestion	Less frequent	Mild	Use of decongestants
Dizziness	Less frequent	Mild	Sit or lie down immediately