Cialis vs Viagra: Two Ways to Treat Erectile Dysfunction

Cialis is a drug that treats erectile dysfunction (ED). Cialis is a brand name for the medicine Tadalafil. Viagra also treats erectile dysfunction but it is also used for the treatment of arterial hypertension. It's the brand name of the drug Sildenafil. ED is the inability to get and sustain an erection. This could be caused by various factors, including obesity, high blood pressure, high cholesterol, diabetes, among other causes. These factors hinder the normal flow of blood into the penis upon stimulation.

For an erection to happen, the blood vessels that take blood to the penis dilate to increase the blood supply. Relatively, the blood vessels that remove blood from the penis contract. The accumulation of blood in the penis forms an erection. The use of ED medication controls the dilation and contraction of the blood vessels that carry blood into and out of the penis. Though Cialis and Viagra achieve this in different ways, they equally assist in not only getting an erection but also sustaining it.

To achieve this, other body functions are interfered with causing side effects.

Common Side Effects

  • Back pain;
  • Headache;
  • Stuffy nose;
  • Dizziness;
  • Nausea;
  • Numbness, pain or tingling in the jaw, chest, neck and arms.;
  • Impaired vision, photo phobia (sensitivity to light) and dyspepsia are more common with the use of Viagra.

Serious Side Effects

There are side effects that will require medical attention if they occur with the use of both cialis and Viagra. They include:

  • Priapism. This is the state of an erection lasting more than 4 hours. It is usually painful and can damage the penis.
  • Sudden loss of vision. This is especially common for ED patients who suffer from other diseases like diabetes, hypertension, heart disease, high cholesterol, or other pre existing eye diseases. The loss of eye sight is brought about by the reduction of blood flow to the optic nerve.
  • Hearing loss.
  • An increase in intraocular pressure.
  • Ventricular arrhythmias.

Drug Interactions

To avoid increased risk of side effects and making your medication ineffective, there are some drugs that you should not use together with either of these two ED drugs.

  • Nitrates: These are drugs used for the treatment of chest pains (Angina). They can lead to dizziness, fainting, or heart attack. They include drugs like Nitroglycerin and Isosorbide.
  • Alpha Blockers: These medications are used to treat enlarged prostate and high blood pressure. They can cause low blood pressure leading to dizziness and fainting. Examples of these drugs are Doxazosin and Tamsulosin. For use with Viagra, alpha-blockers should be taken 4 hours before or 4 hours after Viagra usage to eliminate the risk of low blood pressure.
  • Antifungals e.g. Intraconazole and Ketoconazole.
  • Antibiotics like the Clarithromycin and Erythromycin.
  • HIV protease Inhibitors e.g. Fosamprevir and Retonavir.
  • Hepatitis B Inhibitors like Boceprevir and Telaprevir.

Do not take Cialis with any other medications containing Tadalafil and resist from taking Viagra with any drug containing Sildenafil, or any other drugs used in the treatment of ED.

Dosage

The Cialis tablet is yellow, film coated, almond shaped in the dosages of 5mg, 10mg, and 20 mg. Viagra, on the other hand, is a tiny blue and diamond shaped tablet. It's usually in 25mg, 50mg, and 100mg dosages. For both Cialis and Viagra the dosage should not exceed once daily. The drugs will require to be taken at least 30 minutes before sexual activity.

Cialis Dosage: The first dosage should be 10mg. The dose can be adjusted to a maximum 20mg depending on a patient's response. Patients intending to have sex more than twice per week can benefit from a daily dosage of 5mg at the same time each day. This can be reduced to 2.5mg per day if the dosage is seen to be effective. The drug remains in the system for 24 hours so there is no need to take more than one dose in a day.

Cialis overdose is not common. But for those who might take an overdose unknowingly, or for those who feel like the results are not as fast as expected and decide to take an extra dose, the following symptoms can appear:

  • Irregular heartbeat;
  • Dizziness;
  • Light headedness;
  • Fainting;
  • Chest pain;
  • Nausea.

The increased side effects are headaches, facial flushing, indigestion, back pain, painful muscles, nasal congestion, and generalized body pain.

Viagra Dosage: Viagra should be taken as needed approximately an hour before sexual activity. It can however be equally effective if taken 30 minutes to 4 hours before sexual intercourse. The 50mg dose is the dosage that is commonly used by ED patients. But based on the level of tolerance and effectiveness which is different for every patient, the dose can be raised to the maximum 100mg or to the minimum 25mg. Viagra can be taken with or without food.

A Viagra overdose can be very serious. The symptoms include:

  • Blurred or distorted vision;
  • Damage to the optic nerve referred to as optic neuropathy;
  • Papilledema. This is swelling of the optic nerve;
  • Increased heart rate (tachycardia);
  • Blindness;
  • Prolonged priapism;
  • Diarrhea;
  • Muscle breakdown, condition called rhabdomyolsis.

Precautions

Inform the doctor if you have symptoms, such as high or low blood pressure, any history of heart disease, liver or kidney disease, stomach ulcer, history of painful prolonged erection, and structural deformity of the penis. Also, watch out for a condition of the eyes known as Retinitis Pigmentosa, hemophilia, sickle cell anemia, leukemia, multiple myeloma, all other blood disorder, and any health condition that might have caused you to be advised against having sex.

Conclusion

For both Cialis and Viagra, take the drugs exactly as prescribed. Do not increase the dose to make it work faster than intended. Always remember that the medicines that treat ED do not bring about an erection, there has to be stimulation to achieve it. Cialis and Viagra are not recommended for use by women or men below the age of 18. Keep all medicaments away from children, pests, direct light, and moisture.