How it works
tadalafil 20 mg Penile erection occurs when the penis fills with blood. This happens because the blood vessels that bring blood flow to the penis dilate, increasing the blood supply. At the same time, the blood vessels that remove blood from the penis contract. The blood accumulates in the penis, causing an erection.
When a man is sexually stimulated, nitric oxide is released into the penis. Nitric oxide enables the production of cGMP, which controls the dilation and contraction of the blood vessels that carry blood to and from the penis.
tadalafil 20 mg dosage Cialis comes in yellow, film-coated and almond-shaped tablets in 5, 10 and 20 milligram (mg) doses.
Patients with erectile dysfunction can take Cialis as needed, but it should not be taken more frequently than once every 24 hours.
For the medication to work, a man needs to be sexually aroused. The drug does not provide an erection without sexual stimulation.
A first dose is 10 milligrams (mg) at least 30 minutes before sexual activity. Dosage can then be adjusted depending on how the individual responds. The maximum is 20 mg as a single dose.
tadalafil 20 mg daily The patient should take no more than one dose in 24 hours, but a daily dose of 10 mg to 20 mg is not recommended. This is because a portion of the drug remains in the system for at least 24 hours.
Patients who expect to be sexually active at least twice a week can take a daily dose of 5 mg, and this may be reduced to 2.5 mg once daily, depending on the individual reaction.
Tadalafil for erectile dysfunction is only for use by adults aged 18 years and above.
tadalafil 20 mg argentina Taking tadalafil, or Cialis, with a nitrate medication can cause a serious and sudden drop in blood pressure, or hypotension.
A man who is taking a nitrate drug prescription for heart problems or chest pain should not use tadalafil.
The producers of the drug, Eli Lilly, warn that if the following during sexual activity, they could be a sign of a serious complication. Immediate medical assistance should be sought:
- numbness, tingling or pain the jaw, arms, chest, or neck
If an erection lasts for more than 4 hours, this is known as priapism. It can damage the penis, so medical assistance is necessary.
In rare cases, Cialis can undermine the blood flow to the optic nerve of the eye, causing sudden loss of vision. This is more likely in patients with hypertension, diabetes, high cholesterol, pre-existing eye problems, or heart disease.
People with the following conditions should not take Cialis unless a physician agrees:
- heart rhythm problems, angina, or any kind of heart disease
- high or low blood pressure
- congestive heart failure or stroke within the last 6 months, or myocardial infarction within the last 3 months
- sickle cell anemia, multiple myeloma, hemophilia, leukemia, or another blood disorder
- liver or kidney disease
- stomach ulcer
- retinitis pigmentosa
- structural deformity of the penis, such as Peyronie’s disease
- any health condition for which they have been advised not to have sexual intercourse
The FDA has warned about sudden hearing loss experienced by people using tadalafil and similar products.
In 2016, the FDA announced that they were “evaluating the need for regulatory action” following indications that using Cialis and similar drugs might increase the risk of melanoma skin cancer.
However, some researchers have questioned how serious the risk is.
Where can I get Cialis?
cialis 20 mg duration Cialis is available by prescription and should be used under the supervision of a medical professional.
It can be purchased online, but this is not advisable.
The FDA issued a warning in 2015 about counterfeit tadalafil tablets that had become available in the U.S. It is important always to obtain medications from a reputable source, because using fake drugs can be dangerous.