Say NO to Prescription

Prescription drugs are considered to be of disadvantageous medicines. Among their negative points are the prescriptions only by doctors without which you may get serious health problems and often having side effects with the following boring analysis of it by your healthcare provider. In this case, usage of prescription drugs demands prior visit of the doctor to give an approval of taking any of them.

Below to your attention are represented erectile prescription drugs with the following description of them:

CIALIS®:

Cialis (known yet like Tadalafil) is a drug prescribed to treat impotence or erectile dysfunction. Developed by the biotechnology firm ICOS. Taken one daily on 10 mg with the following effect for 36 hours.

Cialis usage is restricted by a great number of ailments the patient may have in his medical history. What are they?

• Problems connected with Heart (heart failure, uneven heartbeats, and heart attacks)
• Liver or kidney problems
• Gastric ulcers
• High or low blood pressure
• Blood cell and bleeding problems ( sickle cell anemia, multiple myeloma, or leukemia)
• Retinitis pigmentosa
• Loss of vision
• Peyronie's disease (deformed penis shape)
• Over 4 hour-lasted erection

Drug Interactions:

Cialis is extremely forbidden to take with alpha blockers (Nitrates). Their interaction may lead to the decline of blood pressure and cause dizziness and weakness of patient and some side effects listed above.
Here some alpha blockers for your observation: Cardura (doxazosin mesylate), Ritonavir (Norvir) or Indinavir (Crixivan), Hytrin (terazosin HCl), Flomax (tamsulosin HCl), Minipress (prazosin HCl) or Uroxatral (alfuzosin HCl), Ketoconazole or Itraconazole ( Nizoral or Sporanox), Erythromycin.

Side Effects with Cialis®

Br careful with the usage of Cialis! Cialis causes headaches, upset stomach, back and muscle aches for more than 12 hours, stuffy and runny nose. With Cialis it is possible to get vision changes (inability to differ blue and green colors). If it happens to have too long-lasted erection with Cialis (a disease known as Priapism), stop taking it to prevent penis damage.

VIAGRA®:

VIAGRA (Sildenafil citrate) is an oral treatment of male erectile dysfunction (ED) or known as a PDE5 inhibitor. Used only under a doctor’s supervision. Taken only once a day on 50 mg 1 hour previous to sexual intercourse (in some cases the dose may be enlarged to 100 mg or reduced to 25 mg). And used only during sexual excitation.

Like many other prescription drugs, Viagra is also forbidden to use in case of ever having any of the following medical conditions:

• Recent stroke or heart attack
• Low or high blood pressure
• Any blood problems (sickle cell anemia or leukemia)
• Any kidney or liver problems
• Severe vision loss or inherited eye disease( retinitis pigmentosa)
• Peyronie's disease (deformed penis shape)
• Over 4 hour-lasted erection
• Stomach ulcers

Avoid using Viagra if you have allergic reaction to any of its ingredients, if you are taking medicine containing nitrates or medicines for angina, blood pressure and heart stroke, and also Isosorbide mononitrate and isosorbide dinitrate (tablets that are swallowed, chewed, or dissolved in the mouth).

HOW VIAGRA ACTS:
Viagra is affected only at the time of sexual stimulation during which local release of nitric oxide (NO) is occurred. Taking Viagra at the time of sexual activity helps slow down the cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5) which causes the decline of cGMP in the coupus cavernosum (penis).

Little PDE5 is also resided in such tissues as platelets, vascular smooth muscle, and skeletal muscle. But if use Viagra to lessen PDE5 in these tissues, it may cause unwished side effects.

Absorption of Viagra goes quickly (bioavailability is about 40%), and plasma dissolves within 30-129 minutes. Viagra absorption is diminished if take it with gross and fat meal (29% of reduction with 60 minutes delay).

VIAGRA SIDE EFFECTS:
Side effects by Viagra are various and impact different parts of human being. Among severe Viagra negative effects are diminished blood pressure even with 50 or 25 mg of Viagra, deformation of color vision (inability to differ blue and green colors) and visual change like blurred vision, severe hypotension, priapism, myocardial infarction, stroke and even sudden death. Headache, flushing, sneezing, dyspepsia, prolonged erections, palpitations and photophobia are among common Viagra side effects.

LEVITRA

Levitra (Vardenafil) is also referred to PDE5 inhibitor for achieving and maintaining an erection during sexual activity. It is prescribed only by your doctor who administrates you a necessary dose in 2.5 mg, 5 mg, 10 mg, or 20 mg of Levitra. Taken once a day 25–60 minutes before having sexual intercourse.

Indications and contraindications are as for other PDE5 inhibitors. As a PDE5 inhibitor, Levitra is closely related in both function and marketing to Viagra and Cialis. It has a relatively short effective time, comparatively.

SIDE EFFECTS
They are specific for all PDE5 inhibitors. But Levitra more often causes nausea, and also abdominal pain, back pain, abnormal vision, eye pain, facial edema, hypertension, palpitation, tachycardia, itchiness, and priapism. Among severe side effects may be heart attacks, penile tissue damage and permanent loss of potency.

CONTADICTIONS:
Be careful with Levitra while taking medicines which contain nitrate. Such interaction may lead to low blood pressure and as a result to death.