Find out why this trend is dangerous. Men have been turning to the little blue pill to treat their erectile dysfunction ED for nearly 20 years. Since Viagra sildenafil first came on the scene, in , the number of men diagnosed with ED has shot up by percent.
They want the drug without the hassle of getting a prescription. Many younger men might be embarrassed about getting help. A study published in the journal Current Drug Abuse Reviews suggested that easy access was one reason men cited for abuse of ED drugs. A search for internet drugstores found over 6 million hits at 7, online pharmacies.
Buying Viagra from an unreliable source can be risky. Drugs sold online may be fake, contaminated, or expired. 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.
Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Keep from freezing. 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.
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. 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 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 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. 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.
If you already use medicine for high blood pressure hypertension , sildenafil could make your blood pressure go too low. Call your doctor right away if you have more than one of these symptoms: blurred vision, confusion, dizziness, faintness, or lightheadedness when getting up from a lying or sitting position suddenly, sweating, or unusual tiredness or weakness. Use protective measures and ask your doctor if you have any questions about this.
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. 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. Some side effects may occur that usually do not need medical attention. 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. 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:.
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. All rights reserved. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes. Any use of this site constitutes your agreement to the Terms and Conditions and Privacy Policy linked below.
This medicine is available on prescription and can also be bought from most pharmacies. It comes as tablets that you swallow, chewable tablets, and as a liquid that you drink. Sildenafil for erectile dysfunction Viagra can be taken by men aged 18 and over. It's not for women or children. Sildenafil for pulmonary hypertension Revatio can be taken by adults and children aged 1 and over. Branded versions of sildenafil such as Viagra are not available on the NHS, except in special circumstances.
You can also get sildenafil on a private prescription from your doctor. This means you'll need to pay the full cost of the medicine. They'll ask you some questions about your general health to make sure sildenafil is safe for you to take. You can also talk to them about side effects. If the pharmacist has any concerns about whether sildenafil is safe for you, they may advise you to see your doctor.
Be very careful if you do this as many websites sell fake medicines. Online medicines are not always regulated and the ingredients in them can vary from one pack to another.
They can cause unpleasant side effects or may not be suitable for you. It's best to see your doctor before buying medicines online. They know your medical history and can discuss whether you might benefit from treatment. Sildenafil tablets for erectile dysfunction come in different strengths ranging from 25mg to mg. Take sildenafil up to 4 hours before you want to have sex. For sildenafil to work properly, you'll need to be sexually excited. Sildenafil tablets for pulmonary hypertension come in 10mg and 20mg tablets.
For erectile dysfunction, it's best to take sildenafil on an empty stomach. It may take longer to work if you take it with food. If you or your child are taking sildenafil as a liquid, 1ml is usually the same as taking a 10mg tablet, but it's important to always check the medicine label. If you do not have a plastic syringe or spoon, ask your pharmacist for one. Do not use a kitchen teaspoon as it will not give the right amount.
If you have pulmonary hypertension and you forget to take a dose of sildenafil, take it as soon as you remember and then continue as usual. You could also ask your pharmacist for advice on other ways to help you remember to take your medicine. Talk to your doctor if you have taken too much sildenafil and you're worried about these side effects.
Like all medicines, sildenafil can cause side effects in some people. Many people have no side effects or only minor ones. If you get these side effects, keep taking the medicine, but tell your doctor or pharmacist if these side effects bother you or do not go away:.
In rare cases, it's possible to have a serious allergic reaction anaphylaxis to sildenafil. You can report any suspected side effect to the UK safety scheme.
Some complementary therapies may have ingredients that could interfere with sildenafil and cause side effects. Tell your doctor or pharmacist if you're taking any other medicines, including herbal remedies, vitamins or supplements.
It works if you have erection problems by temporarily increasing blood flow to the penis when you get sexually excited. It works in pulmonary hypertension by relaxing blood vessels in the chest.
If you're taking sildenafil Revatio for pulmonary hypertension, do not take it more than 3 times a day. If sildenafil does not work, there are other tablets you could try that work in a similar way, such as:. You could also try a medicine called alprostadil. This is a man-made hormone that helps to stimulate blood flow to the penis.
If you cannot get erections because of a hormonal problem, your GP may refer you to an endocrinologist who specialises in the treatment of hormonal problems. You may benefit from treatment using injections of man-made hormones to restore your hormone levels to normal.
Some complementary therapies, such as acupuncture, have claimed to treat erectile dysfunction. But there's little evidence they work. There's no firm evidence to suggest that taking sildenafil will reduce fertility in either women or men. Sildenafil does not affect any type of contraception, including the contraceptive pill and emergency contraception.
Do not drink grapefruit juice if you're taking sildenafil Revatio for pulmonary hypertension. It interferes with the way the medicine works.
0コメント