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comparer cialis levitra

comparer cialis levitra




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Cialis Viagra Levitra Comparison

The deciding factors that influence a person's decision when choosing between Cialis, Viagra and Levitra are ultimately safety and dependability. You may also consider checking how each medication can be taken, when it should be taken and the risk of side effects during or after treatment before you make a purchase. This article attempts to shed light on these topics by weighing up the advantages of Cialis. Viagra and Levitra one by one. By offering clear, practical information on the aspects of these three brands of oral impotence treatment you can make an informed choice on how to tackle your impotence problem with medication.

Cialis, Viagra, Levitra – are they safe for me to use?

No prescription drug can be released for sale without authorisation from the FDA, (the Food and Drink Administration) the regulating body that has the final say on whether a medicinal aid is safe for public use. The manufacturers of Cialis, Viagra and Levitra have all had clearance from the FDA to market their products worldwide. The only legal way to obtain one of these genuine impotence drugs is to ask your doctor to write you a prescription or complete a medical consultation at an online clinic, such as 121doc.

Cialis, Viagra and Levitra – how do they work?

When reading about Cialis vs. Viagra vs. Levitra you will become familiar with the term PDE-5. It is a chemical compound that builds up within the body, restricting sufficient blood flow to the penis in impotent men. Cialis, Viagra and Levitra each work to inhibit PDE-5 by widening the vessels in your penis. This action allows blood to be trapped in the penis and harden, thereby causing a firm erection. The main difference in their mode of action is that Viagra and Levitra can achieve this for a limited amount of time, as each tablet has a life expectancy of 4-5 hours. Cialis however can last for up to 36 hours, you should be capable of getting a firmer erection at any time within this window providing you are aroused.

Cialis, Viagra, Levitra – when to take them

As shown in the comparison table below, each of the three drugs can be taken as and when you feel in the mood for sex, rather than on a fixed dosage schedule. Usually, these medications take affect within 30-60 minutes and can be used with or without water. When using Viagra or Levitra, no more than one tablet must be taken per 24 hours as this may heighten your risk of side effects. Men taking Cialis have greater flexibility and need only to take a tablet once every 36 hours, due to its longer lasting-effects.

Cialis, Viagra and Levitra – side effects and warnings

Another way to establish which medication is best suited to you is to consider the probability of side effects. The fact that Cialis, Viagra and Levitra affect the body is the same way means the amount and severity of side effects, if produced, will not be dissimilar. Some of the most commonly reported side effects include headache, facial flushing, stomach upset, and stuffy or runny nose. Before taking Cialis, Viagra or Levitra, make sure that you are not allergic to any of the ingredients used.

Levitra vs. Cialis and Viagra – clinical trials

Levitra also shares similar side effects to Cialis and Viagra, but this medication is more suited to men with underlying health conditions such as high blood pressure, high cholesterol and diabetes. Levitra has been proven to work in men who have failed to respond to a Viagra dosage, it is also seen as a sensible second choice for those men who cannot use Cialis.

Cialis vs. Viagra vs. Levitra – ordering online at 121doc

It's important to choose the drug that you know is right for you and if for some reason these medications are not right for you then you can visit our ED treatment page for more impotence treatments. Cialis is quickly becoming the number one treatment for impotence as more men are seeking a trusted method of tackling impotence, such as Viagra but without such short-lived effects. If you too are thinking of obtaining a course of Cialis tablets you'll be happy to know there is a fast and convenient way to do so. Select a treatment from the price table below and take a free online medical consultation at 121doc. If approved by our doctor, your Cialis tablets may be delivered within just 24 hours.

What's On this page?

Compare Viagra, Levitra, Cialis

When a man can't get an erection to have sex or can't keep an erection long enough to finish having sex, it's called erectile dysfunction. Erectile dysfunction is the preferred term rather than the more commonly used term of impotence. Sexual dysfunction is often associated with disorders such as diabetes, hypertension, coronary artery disease, neurologic disorders, and depression. In some patients, sexual dysfunction may be the presenting symptom of such disorders. Additionally, ED is often an adverse effect of many medications.

Although there are a number of options available for non-surgical treatment of sexual dysfunction, it is clear that oral therapy has revolutionized the treatment approach to men with erectile dysfunction.

The FDA approved Viagra in 1998, and it became the first oral therapy for erectile dysfunction on the market. Vardenafil hydrochloride (Levitra) was approved in September, 2003, and Tadalafil (Cialis) was approved in November, 2003. Viagra, Levitra and Cialis work in much the same way. These PDE-5 inhibitors share many similarities, but they have differences as well.

Although sildenafil citrate (Viagra), vardenafil HCl (Levitra) and tadalafil (Cialis) sometimes are called sexual enhancers, they do not directly cause an erection of the penis, but alter the body's response to sexual stimulation by enhancing the effect of the nitric oxide, a chemical that is normally released during stimulation. Nitric oxide causes relaxation of the muscles in the penis, which allows for better blood flow to the penile area.

PDE-5 inhibitors can be used to treat sexual dysfunction caused by high blood pressure, problems affecting nerve function, prostate surgery, side effects of medicines, emotional or psychological ED. Although they work in the similar way, they are not the same in all respects. Sildenafil and vardenafil have similar molecular structures, but tadalafil is structurally different.

  • The success rate of sildenafil amounts to an average of over 80%.
  • Several studies have shown a benefit of Viagra (sildenafil) for women with sexual arousal disorder, including an increased ability to lubricate, achieve orgasm, and experience sexual satisfaction.
  • Onset of action: 30-60 minutes.
  • Duration of action: up to 4 h.
  • Fatty food is known to delay the absorption of Viagra.
  • Contraindicated in persons taking organic nitrates; alpha-blockers (in the current labeling the interaction is considered a Precaution.)
  • Vision disturbances are more common after taking Viagra, than after other PDE-5 inhibitors. In July 2005, the FDA found that sildenafil could lead to vision impairment in rare cases and a number of studies have linked sildenafil use with nonarteritic anterior ischemic optic neuropathy.
  • The patent on Viagra expires in the early 2012.
  • Vardenafil is more potent and selective biochemically than other PDE-5 inhibitors.
  • Onset of action: 25 minutes (the quickest).
  • Duration of action is up to 5-6 hours, little longer than that reported for Viagra.
  • Not recommended in patients taking type 1A (such as quinidine, or procainamide) or type 3 antiarrhythmics (such as sotalol, or amiodarone).
  • The advantage that vardenafil has over sildenafil is that it does not alter color perception, a rare side effect which occurs with sildenafil (because vardenafil does not inhibit phosphodiesterase-6).
  • Vardenafil is contraindicated in patients taking organic nitrates, alpha-blockers (in the current labeling the interaction is considered a Precaution).
  • Fatty food delays the absorption of vardenafil. However, it is less sensitive than Viagra to food intake.
  • The patent on Levitra expires in 2018.
  • The most astounding feature of tadalafil is its length of action. It has long half life, which ensures 36-hour duration of effectiveness, allowing for more flexibility and spontaneity in sexual relations. This feature greatly distinguishes Cialis from its two predecessors Viagra and Levitra.
  • Onset of action: 16 to 30 minutes.
  • Tadalafil has the lowest prevalence of visual side effects. However, the myalgia seems to be more common with tadalafil, approaching 10%.
  • Tadalafil is contraindicated in patients taking organic nitrates, alpha-blockers.
  • Cialis is protected by a patent until 2016.

From a safety perspective, all three Viagra, Levitra and Cialis share similar drug interactions involving CY3A4 inhibitors and a contraindication in the use of nitrates. The side effects are similar for all three PDE-5 inhibitors and include headache, flushing, nasal congestion, and dyspepsia.

Which is better Viagra, Cialis or Levitra?

Cialis clearly works for 36 hours or more, making it an ideal choice for men who are very sexually active.

For men who develop angina and therefore might require an organic nitrate (such as nitroglycerine), the longer duration of action is a disadvantage. Also, some people are uncomfortable having the active ingredient in their system for an extended period of time.

Levitra works a little longer than Viagra, and gives a quite sufficient window of effectiveness for spontaneous sexual experience. Vardenafil is the most potent molecule of all PDE-5 inhibitors and works better in hard-to-treat cases of impotence [2].

Viagra clearly works for women with sexual arousal disorder [1].

Implicit advantage of Viagra: Many men have been ordering high-dose pills and splitting them, because Pfizer's Viagra blue pills are pretty large (14mm) and easy to split.

Levitra, a small hard orange 8mm pill, is much more difficult to cut. Cialis 12mm pills are also inconvenient to split because of their asymmetrical almond shape.

Keep in mind that you don't have to make a definitive choice and stay on one ED medication all the time. You can choose all three and alternate between them depending on your requirements. For example, Viagra or Levitra on weekdays and Cialis on weekend or holiday.

  • 1. Schoen C, Bachmann G. Sildenafil citrate for female sexual arousal disorder: a future possibility? Nat Rev Urol. 2009 Apr;6(4):216-22.
  • 2. Wang HY, Huang YF. Vardenafil for refractory erectile dysfunction: the latest advances. Zhonghua Nan Ke Xue. 2009 Nov;15(11):1035-8.

Last Updated: December 14, 2013

MALE IMPOTENCE

E.D. COMPARISON

Erectile Dysfunction Medication Guide

How Do I Know Which Male Impotence Medication is Right for Me? The following is a comprehensive comparison chart that provides important and relevant information for the top 5 FDA-approved Male Impotence treatment drugs: Viagra, Cialis, Levitra Staxyn and Stendra. This chart can help potential patients understand the differences between these drugs. Consumers can also click on the chart's links to access complete patient information for Viagra, Cialis, Levitra Staxyn and Stendra. Viamedic.com provides this information so our website visitors and clients can be well-informed with regard to the top 5 prescription drugs that treat Male Impotence issues.

MEDICATIONS

VIAGRA

Sildenafil Citrate, 25mg, 50mg, 100mg

A Diamond-Shaped Blue pill with pfizer in front and the letters VGR on the back followed by the pills mg strength. Powerful one erection pill. Effective for 90% of men.

Pfizer Inc.,

CIALIS

Tadalafil, 10mg, 20mg

An Almond-Shaped, Yellow pill with a "C" followed by the mg strength on the side. Take when convenient, lasts up to 36 hours. Cialis is very good for multiple erections.

Eli Lilly

CIALIS DAILY

Tadalafil, 2.5mg, 5mg

An Almond-Shaped dark yellow colored tablet with a пїЅCпїЅ followed by the mg strength on one side. Take a maximum of 1 tablet per day, every day to be effective at any time.

Eli Lilly

LEVITRA

Vardenafil HCI, 10mg, 20mg

A Round, Orange pill with the word Bayer vertically and horizontally on one side, with a number for MG strength on the other side. Quick acting, a bit more responsive than Viagra when taken with food.

Bayer

STAXYN

Vardenafil HCI, 10mg

A Round, white pill with absolutely no other colors or markings on the front or back of the pill. Staxyn quickly dissolves under your tounge so there is no need to swallow the pill.

Bayer

STENDRA

Avanafil, 200mg

Stendra treats male impotence by inhibiting an enzyme called phosphodiesterase type-5 (PDE5), so that blood can flow more easily to the penis. This allows men to get an erection and maintain it during sexual activity.

Vivus Inc.,

TIME SCALE

SIDE EFFECTS

Serious side effects may include:
  • sudden vision loss;
  • ringing in your ears, or sudden hearing loss;
  • chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, general ill feeling;
  • irregular heartbeat;
  • swelling in your hands, ankles, or feet;
  • shortness of breath;
  • vision changes;
  • feeling light-headed, fainting;
  • penis erection that is painful or lasts 4 hours or longer; or
  • seizure (convulsions).
Less serious side effects may include:
  • warmth or redness in your face, neck, or chest;
  • runny or stuffy nose;
  • headache, dizziness;
  • upset stomach; or
  • back pain.

IMPORTANT

Time Between Next ED Medication: You will have to wait a minimum of 24 hours before you can take another dose or different erectile dysfunction medication. Food and Drink to Avoid: Grapefruit and grapefruit juice may interact with these ED Medications and lead to unwanted side effects. Avoid the use of grapefruit products while taking these medicines. Drinking alcohol can increase certain side effects of these medications.

FOOD AND DRINK

Viagra can be taken with or without food. If you take VIAGRA AFTER A HIGH FAT MEAL (such as a cheeseburger and french fries), it may take a little longer to start working. Do not drink alcohol before taking Viagra. Alcohol will negate the effectiveness of your dose.

You can take CIALIS with or without food. Do not drink too much alcohol when taking CIALIS (ex. 5 glasses of wine or 5 shots of whiskey). Drinking too much alcohol can increase your chances of getting a headache or getting dizzy, increasing your heart rate, or lowering your blood pressure.

Levitra and Staxyn can be taken with or without food. Do not drink large amounts of alcohol when taking Levitra or Staxyn. Drinking too much alcohol can reduce your ability to get an erection and this may prevent you from getting the maximum benefit from these tablets.

You can take Stendra with or without food. Do not drink too much alcohol when taking STENDRA (ex. more than 3 glasses of wine, or 3 shots of whiskey). Drinking too much alcohol when taking STENDRA can increase your chances of getting a headache or getting dizzy, increasing your heart rate, or lowering your blood pressure.

MEDICAL INFORMATION

Medications to Avoid while taking ED medications:
  • cimetidine;
  • bosentan;
  • imatinib;
  • nefazodone;
  • St. John's wort;
  • an antibiotic--clarithromycin, erythromycin, telithromycin;
  • antifungal medication--fluconazole, itraconazole, ketoconazole, miconazole, posaconazole, voriconazole;
  • heart or blood pressure medication--amlodipine, amiodarone, nicardipine, quinidine;
  • hepatitis C medications--boceprevir, telaprevir;
  • HIV/AIDS medication--atazanavir, delavirdine, efavirenz, fosamprenavir, indinavir, nelfinavir, nevirapine, ritonavir, saquinavir;
  • seizure medication--carbamazepine, fosphenytoin, oxcarbazepine, phenobarbital, phenytoin, primidone; or
  • tuberculosis medication--isoniazid, rifabutin, rifampin, rifapentine.
Health Conditions:
  • heart disease or heart rhythm problems,
    coronary artery disease;
  • a recent heart attack (within the past 90 days);
  • a recent history (in the past 6 months) of a stroke,
    or congestive heart failure;
  • angina (chest pain), high or low blood pressure;
  • liver or kidney disease (or if you are on dialysis);
  • a blood cell disorder such as sickle cell anemia, multiple myeloma, or leukemia;
  • a bleeding disorder such as hemophilia;
  • a stomach ulcer;
  • retinitis pigmentosa (an inherited condition of the eye);
  • a physical deformity of the penis (such as Peyronie's disease); or
  • if you have been told you should not have sexual intercourse for health reasons.

MOST POPULAR E.D. CHOICE

OTHER INFORMATION

Every Medication Viamedic.com carries is FDA-approved and is prescribed online using on licensed USA Physicians and shipped direct to you from licensed USA pharmacies. Currently, we carry the top products on the market right now for erectile dysfunction including: Viagra, Cialis, Cialis for Daily use, Levitra, Staxyn and Stendra. So what exactly differentiates the ED products from the other? Each one is unique with a specific absorption time and its own side effects. Provided in the chart are comparisons between Viagra, Levitra, Cialis, Staxyn and Stendra.

Keep in mind that any of these medicines may be a suitable treatment. However, the best course of action is to always consult a physician before using any type of medicine. Serious side effects may result from interactions with other medicines, or if you are experiencing any other health issues. Also, it is recommended to thoroughly compare Viagra, Cialis, Cialis for Daily Use, Levitra, Staxyn and Stendra before purchasing to determine the best treatment for you. Should you have any questions please contact Viamedic.com via phone, live chat, or e-mail.

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