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- Hypersensitivity to the active substance or any excipients.
- In clinical trials, it was shown that tadalafil potentiate the hypotensive effects of nitrates. This follows from the combined effects of nitrates and tadalafil on the nitric oxide / cGMP. cialis is cons-indicated in patients receiving nitrates in any form (see Section Interactions).
- The treatment of erectile dysfunction, including viagra, should not be used in men with heart disease and for whom sexual activity is inadvisable. Physicians should consider the potential cardiac risk of sexual activity in patients with cardiovascular disease.
- The groups of patients with cardiovascular disease following were not included in clinical trials, use of tadalafil is cons-indicated in:
. patients with myocardial infarction during the last 90 days
. patients with unstable angina or angina occurring during sexual intercourse,
. patients with heart failure presented a greater than or equal to the Class 2 classification NYHA (New York Heart Association) in the last 6 months,

Pros and Cons of cialis Viagra and Levitra

. patients with uncontrolled arrhythmias, hypotension (<90/50 mmHg) or uncontrolled hypertension,
. patients who had a stroke within past 6 months.
- Levitra-cons in patients who have loss of vision in one eye due to optic neuropathy nonarteritic anterior ischemic (NAION), this event has been associated with or without prior exposure to an inhibitor of PDE5 (see section Warnings and precautions for use).
- cialis contains lactose monohydrate. Patients with rare hereditary problems of galactose intolerance, lactase deficiency or Lapp malabsorption of glucose-galactose should not take this medication.
- Use in children and adolescents: Levitra is not indicated for patients aged under 18 years.
- The safety and efficacy of combinations of Viagra and other treatments for erectile dysfunction have not been studied. It is therefore not recommended to use such associations.
- The combination of tadalafil and doxazosin is not recommended.

Viagra is Better then Levitra?

- The most common side effects reported were headache and dyspepsia. Side effects reported were transient and generally mild or moderate. There are few data on adverse reactions in patients over 75 years. - The following table lists adverse reactions reported in controlled clinical trials versus placebo in patients treated with Viagra and Levitra for once daily application and during product registration. Adverse events observed during post-marketing surveillance in patients taking cialis and demand are also included in this table.

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