Cialis vs. Levitra

• Are Cialis and Levitra the Same Thing?
• What Are Possible Side Effects of Cialis?
• What Are Possible Side Effects of Levitra?
• What is Cialis?
• What is Levitra?
• What Drugs Interact with Cialis?
• What Drugs Interact with Levitra?
• How Should Cialis Be Taken?
• How Should Levitra Be Taken?

Cialis (tadalafil) and Levitra (vardenafil hydrochloride) are phosphodiesterase inhibitors used for treating impotence (erectile dysfunction, or ED).

Side effects of Cialis and Levitra that are similar include flushing (redness or warmth of the face, neck, or chest), headaches, stomach upset, flu-like symptoms (such as stuffy nose, sneezing, or sore throat), back pain, nausea, dizziness, and prolonged erections (priapism).

Side effects of Cialis that are different from Levitra include diarrhea, memory problems, muscle pain, low blood pressure, blurred vision and changes in color vision, and abnormal ejaculation.

Side effects of Levitra that are different from Cialis include heartburn.

Both Cialis and Levitra may interact with antibiotics, antifungals, antidepressants, drugs to treat high blood pressure or a prostate disorder, heart or blood pressure medications, and HIV/AIDS medications.

Cialis may also interact with rifamycins, barbiturates, and seizure medications.

Levitra may also interact with nitrate drugs for chest pain or heart problems, other medications for erectile dysfunction, conivaptan, diclofenac, imatinib, isoniazid, and heart rhythm medicines.

Common side effects of Cialis include:

• flushing (redness or warmth of the face, neck, or chest),
• headaches,
• stomach upset,
• diarrhea,
• flu-like symptoms (such as stuffy nose, sneezing, or sore throat),
• memory problems,
• muscle or back pain,
• nausea,
• low blood pressure,
• dizziness,
• blurred vision and changes in color vision,
• abnormal ejaculation, and
• prolonged erections (priapism).

Common side effects of Levitra include:

• headache,
• flushing (warmth or redness in your face, neck, or chest),
• runny or stuffy nose,
• stomach upset,
• heartburn,
• dizziness,
• back pain, or
• nausea.

Cialis is a prescription medicine taken by mouth for the treatment of:

• men with erectile dysfunction (ED)
• men with symptoms of benign prostatic hyperplasia (BPH)
• men with both ED and BPH

Levitra is a prescription medicine taken by mouth for the treatment of erectile dysfunction (ED) in men.

ED is a condition where the penis does not harden and expand when a man is sexually excited, or when he cannot keep an erection. A man who has trouble getting or keeping an erection should see his doctor for help if the condition bothers him. Levitra may help a man with ED get and keep an erection when he is sexually excited.

Do not take Cialis if you:

• take any medicines called "nitrates".
• use recreational drugs called "poppers" like amyl nitrite and butyl nitrite.
• take any medicines called guanylate cyclase stimulators, such as riociguat.
• are allergic to Cialis or Adcirca, or any of its ingredients.

Call your healthcare provider or get help right away if you have any of the symptoms of an allergic reaction listed above.

Levitra may interact with other medications for erectile dysfunction, conivaptan, imatinib, isoniazid, antidepressants, antibiotics, antifungals, drugs to treat high blood pressure or a prostate disorder, heart or blood pressure medications, or HIV/AIDS medicines.

Take Cialis exactly as your healthcare provider prescribes it. Your healthcare provider will prescribe the dose that is right for you.

Some men can only take a low dose of Cialis or may have to take it less often, because of medical conditions or medicines they take.

Do not change your dose or the way you take Cialis without talking to your healthcare provider. Your healthcare provider may lower or raise your dose, depending on how your body reacts to Cialis and your health condition.

Cialis may be taken with or without meals.

If you take too much Cialis, call your healthcare provider or emergency room right away.

Take Levitra exactly as your doctor prescribes. Do not take more than one Levitra a day. Doses should be taken at least 24 hours apart. Some men can only take a low dose of Levitra because of medical conditions or medicines they take. Your doctor will prescribe the dose that is right for you.

• If you are older than 65 or have liver problems, your doctor may start you on a lower dose of Levitra.
• If you have prostate problems or high blood pressure, for which you take medicines called alpha-blockers, your doctor may start you on a lower dose of Levitra.
• If you are taking certain other medicines your doctor may prescribe a lower starting dose and limit you to one dose of Levitra in a 72-hour (3 days) period.
• Take 1 Levitra tablet about 1 hour (60 minutes) before sexual activity. Some form of sexual stimulation is needed for an erection to happen with Levitra. Levitra may be taken with or without meals.
• Do not change your dose of Levitra without talking to your doctor. Your doctor may lower your dose or raise your dose, depending on how your body reacts to Levitra.
• Call your doctor or emergency room immediately if you accidentally took more Levitra than prescribed.