Gigabytes of genuinely useful information have been written about the three flagmen of oral therapy for erectile dysfunction (ED): Viagra, Levitra and Cialis. Still, the question is still there and asked with unwaning fervor: which pill is better? How do the three pills stack up? What is different, what is similar and how do I choose? Can Viagra, Levitra and Cialis be combined, should they be alternated between and what is the entire point of having three PDE5 inhibitors on the market, if their action is so similar?

On this page entirely devoted to the legendary ED triad, Rockwoodclinic technicians, doctors and invited experts will give you exhaustive answers to these and many other questions.  New data are being discovered and new conclusions are being arrived at by scientists, pharmaceutists, medicine doctors and drug developers every day, and our service strives to bring you the latest news from these worlds. It would be very short-sighted to seal the files on any of the drugs in question, since there is still so much to be discovered about their effects and potential. And so we entirely dedicate this section of our resource to comparative analysis of Viagra, Levitra and Cialis, and all the topics related thereto.

We will start by a brief survey of each drug endowed with the fullest ingredient lists and their possible applications and effects, as well as some other basics. Following that, we will quote summaries of the best materials related to the topic for you to choose from as educational and potentially entertaining reading (who says that the world of pharmacy and healthcare should be boring?).

Viagra (Sildenafil)

Viagra-Cialis-Levitra-Comparative-Analysis

Viagra, also called the blue pill, allows men to control their potential weakness: erection. Viagra can be an effective aid in erectile dysfunction. Viagra is therefore also useful in many cases where the problem is of a psychological nature. The active ingredient in Viagra is sildenafil citrate, a molecule studied and put into production by the famous pharmaceutical company.

Viagra can solve sexual problems due to psychological and emotional impotence. Viagra is used to achieve and maintain an erection, to solve sexual problems due to psychological and emotional impotence.

We can say as primary information that Viagra acts on the vascular structures of the penis, the so-called cavernous bodies, favoring the flow of blood inside them and consequently allowing the erection. Taking Viagra facilitates erection, helps maintain during sexual intercourse, increases the tone of stiffness, helps to get a second erection more easily. Each 100mg tablet of Viagra can easily be divided into a 50mg tablet (the Viagra 50mg version is also available).

Viagra tablet should be taken away from the meal as far as possible; after about 50 minutes, a sufficient concentration of the drug Viagra reaches the corpora cavernosa and in the presence of excitation the erection will be facilitated; the effectiveness has a duration that can go from 4 to 6 hours.

Generic Viagra contains the same active ingredient as the original brand and equates it to effectiveness, strength and dose.

Full list of Viagra ingredients

The active substance

  • Sildenafil. Each tablet contains 25 mg, 50 mg, 100 mg or 150 mg of sildenafil (in the form of citrate salt).

Viagra excipients

  • Tablet core: microcrystalline cellulose, calcium phosphate (anhydrate), croscarmellose sodium, magnesium stearate.
  • Film cover: hypromellose, titanium dioxide (E171), lactose monohydrate, triacetin, indigo carmin aluminum lacquer (E132).

If you cannot tolerate certain sugars, such as lactose, consult your doctor before taking Viagra.

Levitra (Vardenafil)

Levitra is an oral PDE5 inhibitor for the treatment of male ED with the main active component vardenafil citrate. At the same dosage, vardenafil is the most powerful molecule available on the market in inhibiting phosphodiesterase type 5, the penile anti-erection enzyme. Phosphodiesterase type 5 (PDE5) is the predominant enzyme present in erectile tissue in the penis and is associated with erections. PDE5 inhibitors typically block this enzyme to increase or prolong the erectile response. All you need to follow is the dosage prescribed by your doctor during the treatment of Levitra to eliminate the effects of ED.

The drug Levitra can be thought of as a power booster for your penis: when the flow of blood in the tissues of the male organ is prevented, it causes ED. To achieve normal blood flow in the tissues of the male organ (penis), you can try a dose of Levitra prescribed by your doctor. All you need to do is to choose a doctor to allow you to check your health before you can prescribe the drug Levitra as a treatment for impotence or ED.

Levitra effectively helps men achieve normal blood flow in the penis. Levitra allows males to achieve a more enduring and powerful erection. After the man has finished his sexual activity, the flow of blood in his penis decreases and therefore the erection ends.

Levitra has similar characteristics to Viaga even if the active substance is different. Both are suitable for fast starts (the effect is guaranteed within 40 minutes) and allow you to experience sexual pleasure with utmost intensity during three or four hours, as long as a proper stimulus is in place.

Levitra is contraindicated in men who take nitrates and chemical donors of nitric oxide (a group of medicines indicated for the treatment of angina pectoris or chest pain). Levitra is also contraindicated in men older than 75 years who use concomitantly with potent CYP 3A4 inhibitors (ritonavir, indinavir, ketoconazole and itraconazole).

The safety of Levitra has not been studied in the following subgroups of patients, and its use is therefore contraindicated until more information is available: patients with severe hepatic impairment, advanced stages of renal disease requiring dialysis, hypotension, recent myocardial infarction, unstable angina and hereditary degenerative changes in the retina.

For most patients the recommended starting dose of Levitra is 10mg taken orally 25 to 60 minutes before sexual activity. The effect of Levitra can last up to almost five hours. Levitra acts directly on the penis and only in terms of sexual stimulation. The effect of Levitra, has been clarified, begins after about 25 minutes and lasts up to five hours. Side effects of Levitra can be headache and redness of the face.

Levitra is also available as soft orsoluble tablets of vardenafil that act in a shorter time than the tablets and do not pass through the stomach: they can be easily dissolved under the tongue (fast-acting sublingual tablets).

Full list of Levitra ingredients

The active substance

  • Levitra excipients

Levitra, unlike its analogs Viagra and Cialis, does not contain lactose, which greatly contributes to the drug’s increased usability in patients with other health conditions to consider.

Cialis (Tadalafil)

Cialis is the only drug for the treatment of impotence or erectile dysfunction that not only has an immediate effect (it acts in fact only 30 minutes from the assumption), but also has an effect that can be defined as lasting: the effect remains for 36 hours, leaving the patient free choice and also to his partner on the best time to have sex. Cialis can solve sexual problems due to psychological and emotional ED. Tadalafil (the active agent in Cialis) therefore can certainly be an effective aid in erectile dysfunction or impotence. It is used to get and maintain an erection.

Tadalafil is also available in generic Tadalafil (generic format) which contains the same active ingredient as the original brand, equivalent to its effectiveness, strength and dose, therefore having pharmacological characteristics in all respects to those of the original pill. In this regard it is also possible to read the information on generic drugs for complete information.

Millions of men around the world have benefited from the use of Cialis due to its effectiveness in erectile dysfunction. Each 20mg tadalafil tablet can easily be divided into 10mg tablets.

Cialis is the chemical molecule of which this medical preparation is made and has an operation similar to that of the most famous drug Viagra. Cialis is therefore the active ingredient of the ‘yellow pill’ whose effectiveness has now been tested in the treatment and treatment of erectile dysfunction or in any case related to erection in general.

Like other products of this kind, the operating principle is to relax the smooth muscles inside the cavernous elements of the penis (male sexual organ). It has now been discovered that an enzyme, phosphodiesterase 5, can slow down this relaxation. Cialis is able to block this enzyme and restore, after stimulation, the correct course of reactions in the male body or erection.

The drug inhibits all types of phosphodiesterases, can be dangerous where this enzyme is essential for some syntheses, an example is in the structuring of the eye in case of some diseases. Before buying Cialis it is therefore necessary, in addition to having the proper prescription of your doctor, to be certain that you do not suffer from disturbances of the structure of the eye. Before proceeding with a purchase of Cialis in any case you should therefore consult your doctor, even if the spread of the drug is now high. After sexual stimulation (visual, sensory, thought, etc.) Cialis helps to relax blood vessels in the penis, allowing a blood supply to the penis.

Declaration of Cialis ingredients

The active substance

  • Tadalafil. One tablet contains 2,5 mg, 5 mg, 10 mg or 20 mg tadalafil.

Cialis excipients

  • Tablet core: lactose monohydrate (see end of section 2), croscarmellose sodium, hydroxypropyl cellulose, microcrystalline cellulose, sodium laurilsulfate, magnesium stearate.
  • Film cover: lactose monohydrate, hypromellose, triacetin, titanium dioxide (E171), yellow iron oxide (E172), talc.

If you cannot tolerate some sugars, consult your doctor before taking this medicine.

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