Archive for the ‘Pharmacology’ Category

Cialis (Drug–Drug and Drug–Food Interactions)

Sunday, March 2nd, 2008
Common extrinsic factors appear to exert no influence on the pharmacokinetics of tadalafil. For example, in a clinical pharmacology study conducted in 18 healthy subjects, on the effect of food on tadalafil absorption, the mean plasma tadalafil concentration was similar among subjects who received a single 20-mg dose of tadalafil after eating a high-fat meal and among subjects who fasted, [...]

Cialis (Effects of Tadalafil on Blood Pressure)

Wednesday, February 27th, 2008
Study results consistently show that tadalafil treatment has little effect on systemic arterial pressure. This is supported by data reported on more than 5700 subjects treated with tadalafil in more than 22 clinical trials. One study, conducted in 80 healthy subjects, showed that single doses of 10 or 20 mg of tadalafil have only modest effects on systolic [...]

Cialis (Incidence of Adverse Cardiovascular Effects in Clinical Trials)

Wednesday, February 27th, 2008
Patients receiving tadalafil would appear to be at no greater risk for cardiovascular-related side effects, including flushing, dizziness, hypertension, and syncope, than are patients taking placebo because the incidence of these adverse events is low (0.1–3.7%) and not statistically significantly different among the two patient populations. Importantly, the rate of myocardial infarction among patients taking tadalafil (0.43 per 100 patient-years) [...]

Cialis (Effects of Tadalafil on Exercise Tolerance)

Wednesday, February 27th, 2008
Because ED and CAD may often coexist, a study was conducted in men with stable CAD who demonstrated ischemia during a screening exercise test to examine the effects of tadalafil on physical exercise at a workload similar to that experienced during sexual activity. The study was a randomized, double-blind, two-way crossover design in which patients (aged 53–75 yr) received 10 [...]

Cialis (Effects of Tadalafil on Cardiac Electrophysiology)

Wednesday, February 27th, 2008
The effect of a single 100-mg dose of tadalafil on QT interval, which represents ventricular depolarization and repolarization, was evaluated at the time of peak tadalafil concentration in a randomized, double-blind, placebo- and active (intravenous ibutilide)-controlled crossover study in 90 healthy males 18 to 53 yr of age. The mean change in QTc (Fridericia QT correction) for tadalafil, relative to [...]

Cialis (Onset and Duration of Action)

Tuesday, February 26th, 2008
In one study, significantly greater penile rigidity (as measured by RigiScan® [Timm Medical Technologies, Eden Prairie, MN] and compared with placebo) was observed at an average of 45 min after subjects took a single 10-mg dose of tadalafil. Achievement of erection was observed as early as 16 min after subjects took a single 20-mg dose. Although tadalafil has a relatively [...]

Cialis (Absorption, Distribution, Metabolism, and Excretion)

Tuesday, February 26th, 2008
Pharmacokinetic studies conducted in healthy subjects show that tadalafil is rapidly absorbed, with mean peak plasma levels observed between 30 min and 6 h (median time of 2 h) after single oral-dose administration. Tadalafil exhibits linear pharmacokinetics over the dosage range of 2.5 to 20 mg, and steady-state plasma concentrations are attained within 5 d of once-daily dosing, with exposure [...]

Cialis (INTRODUCTION)

Tuesday, February 26th, 2008
Tadalafil (Cialis®) is an oral medication indicated for the treatment of erectile dysfunction (ED). This chapter reviews the current state of knowledge of the pharmacodynamics, pharmacokinetics, effectiveness, and safety of tadalafil. Data are derived from clinical trials involving more than 5700 men with mild to severe ED of various causes regardless of the presence of major comorbidities, such as [...]

Hoodia Patch (Appetite Suppress Patch)

Monday, February 25th, 2008
Hoodia Gordonii is an all-natural appetite suppressant, which has no known adverse side-effects. As a traditional food of the San people for over 100,000 years, Hoodia has a long history [...]

Hoodia Gordonii (Weight Loss Pills)

Monday, February 25th, 2008
What is Hoodia Gordonii This cactus-like plant contains substances that may exert dramatic control over hunger, appetite, and thirst. Although the Hoodia gordonii plant looks like a cactus, [...]