All erectile-dysfunction medications have the same effects in treatment of impotence in men. These drugs act by blocking certain enzyme in the body called phosphodiesterase-5. These drugs help to relax smooth-muscle cells which in turn improve blood circulation to the penis.
Erectile dysfunction medications also produce similar side effects that include headaches, facial flushing, and certain others.
Here we are going to speak about the commonly used erectile dysfunction drugs.
Sildenafil (Viagra) is an oral ED drug that belongs to the class of drugs called PDE5 inhibitors. Viagra works by blocking the PDE-5 enzyme and relaxing the muscles of the penis which help to improve circulation to the penis.
This drug is available in canadian pharmacy without prescription the dose of 25, 50 and 100 mg in a form of a tablet that should be administered 30-60 minutes before sexual intercourse. The action of the drug starts within half an hour after you administer it and the duration of the effect lasts up to 4 hours.
Viagra is indicated for treating erectile dysfunction in men, but these days this medication is widely used by other people who don’t have erectile dysfunction such as younger men, trans women, and others.
PDE5 inhibitors, including Viagra, should not be taken along with such drugs as nitrate medications, otherwise potentially life-threatening hypotension might occur as both nitrites and Viagra lower blood pressure.
Overdose of Viagra can lead to such symptoms as shortness of breath, chest pain and fainting. When you use Viagra, follow the doses carefully. Note that Viagra might lead to priapism – a condition of an erection that lasts more than 4 hours. If this condition occurs, seek a medical attention right away, in other way a permanent damage and impotence might happen.
Vardenafil, or Levitra, is an oral medication for impotence treatment. This drug is in the class of PDE5 inhibitors. This medication comes in the form of a tablet in the following strengthens: 2.5 mg, 5 mg, 10 mg, and 20 mg that you can order via internet canada pharmacy online.
Levitra starts its action in 25 minutes prior to sexual intercourse. This medication should not be taken more than one dose per day. The action lasts up to 4-5 hours.
Common adverse effects of Levitra are such as headache, dizziness, flushing, stuffy and runny nose, or upset stomach, which usually go away soon. Levitra, the same as other PDE5 inhibitors, should not be taken along with nitrate drugs as life-threatening hypotension might occur. If you experience a long-lasting erection, seek a medical attention without a delay. In some patients Levitra might provoke color vision changes. Consult with the medical provider if this condition occurs and take advice how it can be managed.
Tadalafil, or Cialis, is a PDE5 inhibitor, available in a pill form and is used for treating erectile dysfunction in men.
Cialis is available in the following strengthens: 5 mg, 10 mg, and 20 mg.
Cialis can be taken once per day in a lower dosage or on demand. Its action starts within 30 minutes after administering it. The action lasts for up to 36 hours.
Among the side reactions that might be caused by Cialis are: headache, flushing, stomach upset, back pain, muscle pain, and stuffy nose. Note that PDE5 inhibitors, including Cialis, might cause low blood pressure, that is why these drugs should not be used together with nitrates. If nitrates are taking along with any of the PDE5 inhibitors, blood pressure might be decreased so much that it can lead to fainting, shock and even lethal outcome. If you experience priapism, get a medical help right away so that this condition can be managed as soon as possible.
Before you start using any of the erectile dysfunction medications, consult the medical professional.