Cialis is a reversible, selective, effective inhibitor of specific phosphodiesterase type 5 (PDE5). It also has the generic international name Tadalafil. At the moment when sexual arousal leads to the release of nitric oxide in a local way, inhibition by Cialis causes an increase in the level of cyclic guanosine monophosphate in the erectile tissue of the penis. The result is the relaxation of arterial smooth muscles and increased blood flow to the penis. This causes an erection. In the absence of sexual stimulation, no effect is observed if Cialis is used.

Pharmacological properties

The drug Cialis has the ability to improve erection and increases the likelihood of successful sexual intercourse. Its effect can be felt for 36 hours. The effectiveness of this tool is observed already 15 minutes after its use. A necessary condition for this is sexual arousal.

In healthy men, Cialis does not cause any changes in blood pressure. The agent does not lead to a deviation in the heart rhythm. There is also no change in color recognition if Cialis is used.

Its use does not affect the pressure inside the eyes, the size of the pupils, or visual acuity in general. When using Cialis, there are no changes in the level of testosterone, follicle-stimulating, and luteinizing hormones in the blood.

Application: indications, method, dosages

Cialis is recommended for use by men suffering from erectile dysfunction. The drug is taken orally. The maximum dose of Cialis is not more than 20 mg. It is recommended to take the drug no later than 15 minutes before the intended sexual contact. A man can have sexual intercourse within 36 hours from the moment of using the remedy. During this period, it is recommended to determine the optimal response time of the body to Cialis medication. Reviews of men who have used the drug before indicate that it is not recommended to take it more than once a day.

When using the drug, there have been no cases of changes in the characteristics of sperm from it, even after using the maximum daily dose for six months. This is confirmed by research.

Contraindications

It is strongly not recommended to use Cialis for men who are hypersensitive to it or to any of its components. It is also contraindicated to use the drug in conjunction with other medicines which contain any nitrates of organic origin. Cialis should not be used by persons under the age of 18 years.

Since there are no data regarding the condition of men with liver failure during the period of using Cialis, in this case, you should refuse to take the drug.

Caution is required when using the medication and for those who use alpha-blockers for medicinal purposes, such as the drug Doxazosin. The simultaneous use of such drugs can cause symptomatic hypotension in some cases.

Side effects

Most often, undesirable consequences in the form of dyspepsia and headache appear when using a drug such as Cialis. Reviews of men using a potency enhancer indicate that unpleasant symptoms are expressed slightly or moderately. With the systematic, regular use of Cialis, unwanted symptoms disappear.

Other negative sensations encountered when taking the remedy are myalgia, flushing of the face, back pain, nasal congestion. Less commonly, the drug Cialis causes dizziness, swelling of the eyelids, hyperemia, pain in the eyes, conjunctivitis.

Other negative consequencesv

Quite rarely, due to the use of the drug, reactions occur in the form of:

• hypersensitivity (rashes, exfoliative dermatitis, Stevens-Johnson syndrome, urticaria);
• hypotension;
• abdominal pain;
• gastroesophageal reflux;
• hyperhidrosis;
• Erection delays;
• blurry vision;
• retinal vein occlusion.

Among other things, Cialis can cause stroke, myocardial infarction, chest discomfort, sudden cardiogenic death, and tachycardia. But such consequences were observed if a man was at risk for cardiovascular diseases before taking the remedy. However, it is not possible to determine with certainty whether such adverse symptoms are due to pre-existing adverse conditions, to the drug, to sexual arousal, or to a combination of these or other factors.