Precautions Before Taking Sildenafil Medication

Do not give these drugs to your child with this drug.

Metrics & Citations

A European study of 25 men who had erectile dysfunction but no other circulatory disorders found that blood vessels in the brain responded to stress better after a 50-mg dose of sildenafil. More interesting results were reported by scientists in Michigan, who produced ischemic strokes in rats by temporarily blocking blood vessels. During their sildenafil tablets lp 100 mg recovery, the animals were divided into three groups. One received no treatment, another low-dose sildenafil, and the third high-dose sildenafil. The animals who got sildenafil recovered better, with the highest doses producing the best results.

How to Take Sildenafil

The scientists concluded that the medication actually stimulated the growth of new nerve cells in the brain tissue next to the stroke damage. It's far too early to know whether sildenafil may someday help people with strokes. If you get your information about sildenafil from Super Bowl commercials or e-mail spam, you might dismiss it as a lifestyle drug of little real medical importance. In fact, it's a serious prescription medication that has helped millions of men who are distressed by an entirely legitimate medical problem. Because the drug acts on arteries beyond the penis, it can produce various side effects.

Drugs Affecting or Metabolized by Hepatic Microsomal Enzymes

That means it should only be prescribed by a personal physician who really knows you. And it also means that scientists are investigating uses for the drug in patients with an array of vascular disorders having nothing to do with sexual function. They have nearly identical effects on ED as well as similar side effects. Because they are newer drugs, scientists are just beginning to study them for problems that don't involve sexuality. Sildenafil has already been licensed to treat men and women with pulmonary hypertension. Your child may also need to avoid taking these drugs for some time after the last dose of this drug.

Product	Dosage	Quantity + Bonus	Price
Viagra Generic	100mg	30 + 4 Pills	60.91€ 58.01€	Buy
Kamagra Oral Jelly	100mg	220 + 18 Sachets	662.24€ 630.70€	Buy
Viagra Generic	150mg	60 + 4 Pills	111.25€ 105.95€	Buy
Viagra Generic	100mg	180 + 8 Pills	199.37€ 189.88€	Buy
Kamagra	100mg	12 Pills	55.64€ 52.99€	Buy
Viagra Generic	100mg	10 Pills	28.91€ 27.53€	Buy
Kamagra Polo	100mg	120 + 6 Pills	327.15€ 311.57€	Buy
Kamagra Oral Jelly	100mg	30 + 5 Sachets	136.20€ 129.71€	Buy
Viagra Generic	200mg	20 Pills	61.69€ 58.75€	Buy
Viagra Generic	100mg	360 + 10 Pills	330.21€ 314.49€	Buy
Viagra Generic	25mg	90 + 6 Pills	105.03€ 100.03€	Buy
Viagra Generic	50mg	270 + 8 Pills	198.48€ 189.03€	Buy
Kamagra Oral Jelly	100mg	21 Sachets	95.92€ 91.35€	Buy

If your child takes any other drugs (prescription or OTC, natural products, vitamins).

Warnings & Precautions

Clinical trials have demonstrated improved exercise tolerance with few side effects. Pulmonary hypertension is a feature of acute mountain sickness. High altitudes produce low blood-oxygen levels. In turn, low oxygen produces a narrowing of the pulmonary arteries. The heart must therefore work harder, reducing the capacity to exercise.

Statistical Analysis

To find out if it might improve exercise capacity in low oxygen conditions, scientists tested 14 healthy mountain climbers in a lab in Germany and again at a Mount Everest base camp. In the lab, the volunteers breathed 10% oxygen through a mask; on the mountain, they breathed natural air. Under both conditions, a 50-mg sildenafil tablet decreased pressures in the lungs' blood vessels and increased the maximum exercise capacity. It's a small study, and it's too soon to say if sildenafil will help prevent or treat acute mountain sickness. Still, a study of 29 climbers reported that tadalafil can also reduce pulmonary artery pressure at a high altitude.

Oral Administration

In affected individuals, exposure to the cold triggers spasm of the small arteries that supply blood to the fingers, toes, or both. Temporarily deprived of adequate blood flow, sildenafil softgel capsule the involved digits become pale, cold, and very painful. It's a common condition, affecting up to 8% of men and 17% of women. In the vast majority, there are no underlying diseases (primary Raynaud's), and patients do well simply by minimizing their exposure to cold. But secondary Raynaud's can complicate collagen-vascular diseases or certain other conditions. There are many drugs that interact with this drug, like certain drugs that are used for HIV, infections, and other health problems. If your child is taking another drug that has the same drug in it.

Route of administration

ACCEL-Sildenafil; AG-Sildenafil; APO-Sildenafil; AURO-Sildenafil; BIO-Sildenafil; JAMP-Sildenafil; JAMP-Sildenafil R; M-Sildenafil; Mar-Sildenafil; MINT-Sildenafil; NRA-Sildenafil; PMS-Sildenafil R; Priva-Sildenafil [DSC]; PRZ-Sildenafil; Revatio; RIVA-Sildenafil; TEVA-Sildenafil; TEVA-Sildenafil R; UPH-Sildenafil; Viagra It is used to treat high blood pressure in the lungs. It may be given to your child for other reasons. If your child has been given this form of this drug, talk with the doctor for information about the benefits and risks. Talk with the doctor if you have questions or concerns about giving this drug to your child. If your child is allergic to this drug; any part of this drug; or any other drugs, foods, or substances. If your child is taking another drug like this one that is used to treat high pressure in the lungs.

• Sildenafil is a medication used to treat erectile dysfunction in men.
• It works by increasing blood flow to the penis during arousal.
• Sildenafil is commonly sold under the brand name Viagra.
• The typical dose ranges from 25 mg to 100 mg, taken before sexual activity.
• It usually takes about 30 to 60 minutes to work after ingestion.
• Sildenafil's effects can last for up to 4-6 hours.
• It can cause side effects like headaches, flushing, and nasal congestion.
• Sildenafil should not be used with nitrate medications due to risk of dangerous drops in blood pressure.
• It is available by prescription from a healthcare provider.
• Do not take sildenafil more than once a day to avoid adverse effects.

This is not a list of all drugs or health problems that interact with this drug.

What other information should I know?

Scientists who noticed that the ED pills can produce side effects in many parts of the body are asking if they can also serve therapeutic roles beyond male (or female) sexuality. Because of its seniority, most of the research has used sildenafil, so it's not clear if the newer medications will fill similar roles. But for sildenafil, at least, some new uses appear promising. It's the only nonsexual condition that has earned FDA approval for sildenafil. But since it's a serious problem, any benefit is most welcome.

Cardiovascular problems

When we think of blood pressure, we usually think of the systemic circulation, of the blood pumped from the heart's left ventricle to the aorta and then to the smaller arteries that carry oxygen-rich blood throughout the body. But to pick up vital oxygen, blood must first pass from the less powerful right ventricle through the pulmonary artery to the lungs, then back to the left side of the heart. The pressures in the pulmonary artery are much lower (about 20/10 millimeters of mercury, or mm Hg) than in the aorta (lower than 120/80 mm Hg is considered healthy). Exercise is the most common cause of rising pulmonary artery pressure, but the elevation is mild and subsides promptly with rest. High altitudes are another cause, which can lead to mountain sickness (see below).

Does sildenafil cause different side effects in females?

Far more serious are the large number of lung diseases, vascular diseases, heart disorders, and miscellaneous conditions that can cause pulmonary hypertension. And in primary pulmonary hypertension, no underlying cause is evident. Pulmonary hypertension causes shortness of breath, first during exertion but eventually at rest if the condition progresses. A variety of treatments are available, depending on the underlying problem. And the FDA has approved sildenafil (Revatio) in a dose of 20 mg three times a day for men and women with pulmonary hypertension. Tell the doctor and pharmacist about all of your child’s drugs (prescription or OTC, natural products, vitamins) and health problems.

Pregnancy & Lactation

Tell the doctor about the allergy and what signs your child had. If your child has a health problem called pulmonary veno-occlusive disease (PVOD). If your child has a certain hereditary eye problem called retinitis pigmentosa. If your child uses drugs called “poppers” like amyl nitrite and butyl nitrite. If your child is taking any of these drugs: Isosorbide dinitrate, isosorbide mononitrate, or nitroglycerin. You must check to make sure that it is safe to give this drug with all of your child’s other drugs and health problems.

• Sildenafil may improve confidence and sexual satisfaction in men with ED.
• The medication is also being researched for pulmonary hypertension treatment.
• Common side effects include dizziness, upset stomach, and vision changes.
• Rare side effects can include priapism, a painful prolonged erection.
• Alcohol can interfere with sildenafil's effectiveness and increase side effects.
• Patients should disclose any heart conditions before using sildenafil.
• Sildenafil may interact with other medications such as alpha-blockers.
• It is not suitable for individuals with severe liver or kidney problems.
• Taking large doses does not necessarily improve efficacy and increases risk.
• Always follow the prescribed dosage and discontinue if adverse effects occur.

Do not start, stop, or change the dose of any drug your child takes without checking with the doctor.

Other targets: Therapeutic roles

Time will tell if any of these drugs will women sildenafil fill other potentials beyond promoting potency. As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician. This information from UpToDate® Lexidrug™ explains what you need to know about this medication, including what it’s used for, how to take it, its side effects, and when to call your healthcare provider. Tell all of your child’s health care providers that your child is taking this drug.

Upcoming Events

It's not common, but secondary Raynaud's can be very painful and difficult to treat. Many medications have been used without consistent success. But a 2005 study of 16 patients with severe Raynaud's phenomenon that had not responded to other medications reported benefit from sildenafil in a dose of 50 mg twice a day. And a 2006 study of 40 Raynaud's patients reported similar benefits from vardenafil in a dose of 10 mg twice a day. Sildenafil was discovered by scientists looking for a new medication to dilate coronary arteries.

Sildenafil Summary for 2023

It does that, but because it widens healthy coronary arteries more than diseased vessels, it has not been successful in treating angina. But it may have other benefits for cardiac patients. In the first years of the Viagra era, research on sildenafil and the heart was devoted to making sure the drug was safe for the circulation. In most men with heart disease, it is. But several studies of patients with congestive heart failure also reported that the medication improves oxygen consumption, pulmonary artery pressure, and exercise capacity in these patients.

Possible Side Effects of Sildenafil

Research shows that sildenafil helps the heart muscle relax properly, which could help patients with heart failure due to diastolic dysfunction. Another interesting property is sildenafil's ability to protect the heart from excessive stimulation by adrenaline. Clinical trials will be needed to see which patients might benefit. It's the most speculative use for sildenafil, and it's far from clinical application. Still, it's an interesting area of new research. This includes your child’s doctors, nurses, pharmacists, and dentists. Have your child avoid tasks or actions that call for alertness until you see how this drug affects your child. These are things like riding a bike, playing sports, or using items such as scissors, lawnmowers, electric scooters, toy cars, or motorized vehicles.

• Sildenafil is available in different strengths to tailor treatment.
• It is often used in clinical settings for ED diagnosis and management.
• Men taking sildenafil should avoid heavy meals shortly before dosing.
• The drug's effectiveness can be influenced by age and overall health.
• Combining sildenafil with recreational drugs can be dangerous.
• Some users report that sildenafil enhances spontaneous sexual activity.
• It is important to only use sildenafil that has been prescribed by a healthcare provider.
• The medication’s cost varies based on brand, dosage, and pharmacy.
• Sildenafil may cause transient eye color changes due to blood vessel effects.
• Patients should keep track of dosage and side effects experienced.

To lower the chance of feeling dizzy or passing out, have your child rise slowly if your child has been sitting or lying down. Have your child be careful going up and down stairs.

Advice Item	Explanation	Source
Take on an empty stomach	Food, especially fatty meals, can delay absorption	Medical guidelines
Avoid alcohol	Can impair effectiveness and increase side effects	Doctor advice
Do not exceed prescribed dose	Increased risk of side effects	Pharmaceutical recommendation
Report unexpected side effects	Such as vision changes, prolonged erections	Healthcare provider