Staxyn
Generic name: vardenafil
Pharmacist-reviewed drug information from the RxWiki encyclopedia.
Overview
Staxyn is a prescription medication used to treat erectile dysfunction (impotence) in adult men. Staxyn belongs to a group of drugs called phosphodiesterase (PDE) inhibitors, which work by relaxing muscles and increasing blood flow to the penis during sexual stimulation.
This medication comes in an orally disintegrating tablet form and that is taken one hour before sexual activity.
Common side effects of Staxyn include facial flushing, headache, stuffy nose, and upset stomach.
What is it used for?
Staxyn is a prescription medicine for the treatment of erectile dysfunction (ED) in men.
This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.
How to take it
Take Staxyn exactly as prescribed by your doctor. Follow the directions on your prescription label carefully. Your doctor will determine the best dose for you.
For most patients, the recommended dose of Staxyn (vardenafil) is 10 mg, taken by mouth approximately 60 minutes before sexual activity. The dose may be increased to a maximum recommended dose of 20 mg based on efficacy and side effects. The maximum recommended dosing frequency is once per day.
Warnings
Do not take Staxyn if you:
- take any medicines called “nitrates”. Nitrates are commonly used to treat angina. Angina is a symptom of heart disease and can cause pain in your chest, jaw, or down your arm.
Medicines called nitrates include nitroglycerin that is found in tablets, sprays, ointments, pastes, or patches. Nitrates can also be found in other medicines such as isosorbide dinitrate or isosorbide mononitrate. Some recreational drugs called “poppers” also contain nitrates, such as amyl nitrate and butyl nitrate. Do not use Staxyn if you are using these drugs. Ask your doctor or pharmacist if you are not sure if any of your medicines are nitrates. - you have been told by your healthcare provider to not have sexual activity because of health problems. Sexual activity can put an extra strain on your heart, especially if your heart is already weak from a heart attack or heart disease.
- are allergic to Staxyn or any of its ingredients.
Staxyn may uncommonly cause:
- an erection that won’t go away (priapism). If you get an erection that lasts more than 4 hours, get medical help right away. Priapism must be treated as soon as possible or lasting damage can happen to your penis including the inability to have erections.
- color vision changes, such as seeing a blue tinge to objects or having difficulty telling the difference between the colors blue and green.
In rare instances, men taking PDE5 inhibitors (oral erectile dysfunction medicines, including Staxyn, reported a sudden decrease or loss of vision in one or both eyes. It is not possible to determine whether these events are related directly to these medicines, to other factors such as high blood pressure or diabetes, or to a combination of these. If you experience sudden decrease or loss of vision, stop taking PDE5 inhibitors, including Staxyn, and call a doctor right away.
Sudden loss or decrease in hearing, sometimes with ringing in the ears and dizziness, has been rarely reported in people taking PDE5 inhibitors, including Staxyn. It is not possible to determine whether these events are related directly to the PDE5 inhibitors, to other diseases or medications, to other factors, or to a combination of factors. If you experience these symptoms, stop taking Staxyn and contact a doctor right away.
Each Staxyn tablet contains 1.01 mg phenylalanine per tablet, which could be harmful for patients with phenylketonuria.
Patients with congenital QT syndrome or taking class IA or III antiarrhythmics should avoid using Staxyn as this medication may increase your risk of QT prolongation.
These are not all the side effects of Staxyn. For more information, ask your doctor or pharmacist.
Side effects
The most common side effects with Staxyn are:
- headache
- flushing
- stuffy or runny nose
- indigestion
- dizziness
- back pain
These side effects usually go away after a few hours. Call your doctor if you get a side effect that bothers you or one that will not go away.
Drug interactions
Tell your doctor about all the medicines you take including prescription and non-prescription medicines, vitamins, and herbal supplements. Staxyn and other medicines may affect each other. Always check with your doctor before starting or stopping any medicines. Especially tell your doctor if you take any of the following:
- medicines called nitrates
- medicines called alpha-blockers. These include Hytrin (terazosin HCl), Flomax (tamsulosin HCl), Cardura (doxazosin mesylate), Minipress (prazosin HCl) or Uroxatral (alfuzosin HCl). Alpha-blockers are sometimes prescribed for prostate problems or high blood pressure. In some patients the use of PDE5 inhibitor drugs, including Staxyn, with alpha-blockers can lower blood pressure significantly leading to fainting. You should contact the prescribing physician if alpha-blockers or other drugs that lower blood pressure are prescribed by another healthcare provider.
- medicines that treat abnormal heartbeat such as quinidine, procainamide, amiodarone, and sotalol
- medicines that treat HIV such as ritonavir (Norvir), indinavir (Crixivan), saquinavir (Fortavase or Invirase), and atazanavir (Reyataz)
- ketoconazole (Nizoral) or itraconazole (Sporanox)
- erythromycin or clarithromycin
- other medicines or treatments for ED
Pregnancy
Tell your doctor if you are pregnant or plan to become pregnant.
The FDA categorizes medications based on safety for use during pregnancy. Five categories - A, B, C, D, and X, are used to classify the possible risks to an unborn baby when a medication is taken during pregnancy.
This medication falls into category B. Staxyn is only for use in men. Additionally, there are no studies of Staxyn use in pregnant women. No evidence of potential for harm to unborn babies in animal studies have been observed.
Breastfeeding
You should know that Staxyn is only for use in men. It is not known if Staxyn is excreted in human breast milk.
Quick facts
In rare instances, men have reported an erection that lasts many hours. You should call a doctor immediately if you ever have an erection that lasts more than 4 hours.
Do not take vardenafil if you take any medicines called “nitrates.” Nitrates are commonly used to treat angina. Angina is a symptom of heart disease and can cause pain in your chest, jaw, or down your arm.
- Ask your healthcare provider or pharmacist if you are not sure if any of your medicines are nitrates.
Other Precautions:
- Tell all of your healthcare providers that you take vardenafil
- Seek immediate medical attention if sudden loss of vision occurs
All information on this site is provided “as-is” for informational purposes only and is not a substitute for medical advice or treatment. You should consult with a medical professional if you have any questions about your health.