14 CLINICAL STUDIES
Of note, in this study, in some subjects who received tadalafil followed by sublingual nitroglycerin in the post-exercise period,
Key Takeaways: Cialis vs Tadalafil
Therefore, the use of CIALIS in patients taking any form of nitrates is contraindicated [see Contraindications (4.1)]. A study was conducted to assess the degree of interaction between nitroglycerin and tadalafil, should nitroglycerin be required in an emergency situation after tadalafil was taken. After 48 hours, the interaction was not detectable (see Figure 1). Figure 1: Mean Maximal Change in Blood Pressure (Tadalafil Minus Placebo, Point Estimate with 90% CI) in Response to Sublingual Nitroglycerin at 2 (Supine Only), 4, 8, 24, 48, 72, and 96 Hours after the Last Dose of Tadalafil 20 mg or Placebo Therefore, CIALIS administration with nitrates is contraindicated. In such circumstances, nitrates should still only be administered under close medical supervision with appropriate hemodynamic monitoring [see Contraindications (4.1)].
Other uses
Effect on Blood Pressure When Administered With Alpha-Blockers Six randomized, double-blinded, crossover clinical pharmacology studies were conducted to investigate the potential interaction of tadalafil with alpha-blocker agents in healthy male subjects [see Dosage and Administration (2.7) and Warnings and Precautions (5.6)]. In two studies, a daily oral alpha-blocker (at least 7 days duration) was administered to healthy male subjects taking repeated daily doses of tadalafil. Doxazosin — Three clinical pharmacology studies were conducted with tadalafil and doxazosin, an alpha[1]-adrenergic blocker. In the first doxazosin study, a single oral dose of tadalafil 20 mg or placebo was administered in a 2-period, crossover design to healthy subjects taking oral doxazosin 8 mg daily (N=18 subjects). Doxazosin was administered at the same time as tadalafil or placebo after a minimum of seven days of doxazosin dosing (see Table 5 and Figure 2).
Alcohol and Cialis
Blood pressure was measured manually at 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, and 24 hours after tadalafil or placebo administration. In the second doxazosin study, a single oral dose of tadalafil 20 mg was administered to healthy subjects taking oral doxazosin, either 4 or 8 mg daily. The study (N=72 subjects) was conducted in three parts, each a 3-period crossover. In part A (N=24), subjects were titrated to doxazosin 4 mg administered daily at 8 a.m. Tadalafil was administered at either 8 a.m., 4 p.m., or 8 p.m. clinically significant reductions in blood pressure were observed, consistent with
| Marking Type | Description | Symbols or Text | Placement |
|---|---|---|---|
| Numeric Imprint | Numbers indicating strength | e.g., "20" | Center of the pill |
| Logo or Logo-like | Brand logo or symbol | Cialis logo | One side |
| Combination Marks | Mix of numbers and symbols | e.g., "C20" | Engraved on surface |
the augmentation by tadalafil of the blood-pressure-lowering effects of nitrates.
- Original Cialis pills are typically orange and have a flat, smooth surface.
- They often display a logo or numerical imprint on one side.
- The pill size is usually around 8 mm long and 4 mm wide.
- Color consistency is maintained across batches for easy identification.
- The capsule form is not typical; most are solid with a uniform color.
- Printed markings help distinguish between different dosages.
- The pills are designed to be discreet and portable.
Single oral doses of phosphodiesterase inhibitors have
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Cialis Generic | 2.5mg | 120 + 6 Pills | 128.93€ 122.79€ | |
| Cialis Generic | 10mg | 90 + 6 Pills | 146.17€ 139.21€ | |
| Cialis Original | 20mg | 92 + 4 Pills | 377.99€ 359.99€ | |
| Cialis Generic | 20mg | 20 Pills | 54.72€ 52.11€ | |
| Cialis Professional | 40mg | 90 + 2 Pills | 348.59€ 331.99€ | |
| Cialis Generic | 5mg | 20 Pills | 41.99€ 39.99€ | |
| Cialis Generic | 10mg | 60 + 6 Pills | 105.81€ 100.77€ | |
| Cialis Super Active | 20mg | 20 + 4 Pills | 92.35€ 87.95€ | |
| Cialis Professional | 20mg | 30 Pills | 104.57€ 99.59€ | |
| Cialis Professional | 20mg | 270 + 6 Pills | 623.07€ 593.40€ | |
| Cialis Professional | 20mg | 180 + 4 Pills | 423.11€ 402.96€ | |
| Cialis Super Active | 20mg | 120 + 16 Pills | 382.15€ 363.95€ | |
| Cialis Generic | 20mg | 180 + 10 Pills | 254.09€ 241.99€ |
demonstrated transient dose-related impairment of color discrimination (blue/green),
Related images for "C 20"
In part B (N=24), subjects were titrated to doxazosin 4 mg administered daily at 8 p.m. Tadalafil was administered at either 8 a.m., 4 p.m., or 8 p.m. In part C (N=24), subjects were titrated to doxazosin 8 mg administered daily at 8 a.m. In this part, tadalafil or placebo were administered at either 8 a.m. or 8 p.m.
High or low blood pressure
The placebo-subtracted mean maximal decreases in systolic blood pressure over a 12-hour period after dosing in the placebo-controlled portion of the study (part C) are shown in Table 6 and Figure 3. Figure 3: Doxazosin Study 2 (Part C): Mean Change from Time-Matched Baseline in Systolic Blood Pressure Blood pressure was measured by ABPM every 15 to 30 minutes for up to 36 hours after tadalafil or placebo. Subjects were categorized as outliers if one or more systolic blood pressure readings of <85 mm Hg were recorded or one or more decreases in systolic blood pressure of >30 mm Hg from a time-matched baseline occurred during the analysis interval. Of the 24 subjects in part C, 16 subjects were categorized as outliers following administration of tadalafil and 6 subjects were categorized as outliers following placebo during the 24-hour period after 8 a.m. dosing of tadalafil or placebo.
How Long Does It Take For Results?
Of these, 5 and 2 were outliers due to systolic BP <85 mm Hg, while 15 and 4 were outliers due to a decrease from baseline in systolic BP of >30 mm Hg following tadalafil and placebo, respectively. During the 24-hour period after 8 p.m. dosing, 17 subjects were categorized as outliers following administration of tadalafil and 7 subjects following placebo. Of these, 10 and 2 subjects were outliers due to systolic BP <85 mm Hg, while 15 and 5 subjects were outliers due to a decrease from baseline in systolic BP of >30 mm Hg, following tadalafil and placebo, respectively. Some additional subjects in both the tadalafil and placebo groups were categorized as outliers in the period beyond 24 hours. using the Farnsworth-Munsell 100-hue test, with peak effects near the time of peak plasma levels.
Is there a generic for Cialis?
Tadalafil or placebo was administered 4 hours after alfuzosin following a minimum of seven days of alfuzosin dosing. Blood pressure was measured manually at 1, 2, 3, 4, 6, 8, 10, 20, and 24 hours after tadalafil or placebo dosing. Effects on Blood Pressure When Administered with Antihypertensives Amlodipine — A study was conducted to assess the interaction of amlodipine (5 mg daily) and tadalafil 10 mg. In a similar study using tadalafil 20 mg, there were no clinically significant differences between tadalafil and placebo in subjects taking amlodipine. Angiotensin II receptor blockers (with and without other antihypertensives) — A study was conducted to assess the interaction of angiotensin II receptor blockers and tadalafil 20 mg.
Does Cialis cause any long-term side effects?
Following dosing, ambulatory measurements of blood pressure revealed differences between tadalafil and placebo of 8/4 mm Hg in systolic/diastolic blood pressure. Bendrofluazide — A study was conducted to assess the interaction of bendrofluazide (2.5 mg daily) and tadalafil 10 mg. Following dosing, the mean reduction in supine systolic/diastolic blood pressure due to tadalafil 10 mg in subjects taking bendrofluazide was 6/4 mm Hg, compared to placebo. Enalapril — A study was conducted to assess the interaction of enalapril (10 to 20 mg daily) and tadalafil 10 mg. Following dosing, the mean reduction in supine systolic/diastolic blood pressure due to tadalafil 10 mg in subjects taking enalapril was 4/1 mm Hg, compared to placebo. Across all clinical studies with CIALIS, reports of
2.3 CIALIS for Once Daily Use for Benign Prostatic Hyperplasia
Metoprolol — A study was conducted to assess the interaction of sustained-release metoprolol (25 to 200 mg daily) and tadalafil 10 mg. Following dosing, the mean reduction in supine systolic/diastolic blood pressure due to tadalafil 10 mg in subjects taking metoprolol was 5/3 mm Hg, compared to placebo. Effects on Blood Pressure When Administered with Alcohol Alcohol and PDE5 inhibitors, including tadalafil, are mild systemic vasodilators. When tadalafil 20 mg was administered with a lower dose of alcohol (0.6 g/kg, which is equivalent to approximately 4 ounces of 80-proof vodka, administered in less than 10 minutes), orthostatic hypotension was not observed, dizziness occurred with similar frequency to alcohol alone, and the hypotensive effects of alcohol were not potentiated. The effects of tadalafil on cardiac function, hemodynamics, and exercise tolerance were investigated in a single clinical pharmacology study. changes in color vision were rare (<0.1% of patients).
- The iconic Cialis pill is bright orange and oval-shaped.
- It features a clear imprint, like "C 20".
- The pill’s smooth surface is shiny and clean.
- The size makes it easy to swallow.
- Shape is gently curved with rounded ends.
- Marking clarity helps prevent counterfeits.
- They are not commonly capsule-shaped but solid.
Three studies were conducted in men to assess
| Aspect | Description | Typical Dimensions | Shape |
|---|---|---|---|
| Pill Shape | Usually oval or round | 8-12 mm diameter | Oval / Round |
| Size | Small, easily swallowable | 8-10 mm | N/A |
| Appearance Shape | Slightly beveled edges | N/A | Oval / Round |
the potential effect on sperm characteristics of tadalafil 10
| Factor | Effect on Pill | Changes Observed | Notes |
|---|---|---|---|
| Sunlight Exposure | Fading or discoloration | Loss of brightness | Store in dark place |
| Moisture | Surface damage, discoloration | Whitening or softening surface | Keep dry |
| Temperature Fluctuations | Surface cracking or warping | Bumps, cracks, or deformation | Proper storage essential |
mg (one 6 month study) and 20 mg (one 6 month and one 9 month study) administered daily.
7.2 Potential for Other Drugs to Affect CIALIS
In the period prior to tadalafil dosing, one severe event (dizziness) was reported in a subject during the doxazosin run-in phase. In the third doxazosin study, healthy subjects (N=45 treated; 37 completed) received 28 days of once per day dosing of tadalafil 5 mg or placebo in a two-period crossover design. The results are shown in Table 7. Blood pressure was measured manually pre-dose at two time points (-30 and cost cialis everyday -15 minutes) and then at 1, 2, 3, 4, 5, 6, 7, 8, 10, 12 and 24 hours post dose on the first day of each doxazosin dose, (1 mg, 2 mg, 4 mg), as well as on the seventh day of 4 mg doxazosin administration. Following the first dose of doxazosin 1 mg, there were no outliers on tadalafil 5 mg and one outlier on placebo due to a decrease from baseline in standing systolic BP of >30 mm Hg.
The Bottom Line
There were 2 outliers on tadalafil 5 mg and none on placebo following the first dose of doxazosin 2 mg due to a decrease from baseline in standing systolic BP of >30 mm Hg. There were no outliers on tadalafil 5 mg and two on placebo following the first dose of doxazosin 4 mg due to a decrease from baseline in standing systolic BP of >30 mm Hg. There were two episodes of syncope in this study, one subject following a dose of tadalafil 5 mg alone, and another subject following coadministration of tadalafil 5 mg and doxazosin 4 mg. Tamsulosin — In the first tamsulosin study, a single oral dose of tadalafil 10, 20 mg, or placebo was administered in a 3 period, crossover design to healthy subjects taking 0.4 mg once per day tamsulosin, a selective alpha[1A]-adrenergic blocker (N=18 subjects). Tadalafil or placebo was administered 2 hours after tamsulosin following a minimum of seven days of tamsulosin dosing.
Does my risk of side effects with Cialis depend on the dose I take (such as 5 mg vs. 20 mg)?
Blood pressure was measured manually at 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, and 24 hours after tadalafil or placebo dosing. In the second tamsulosin study, healthy subjects (N=39 treated; and 35 completed) received 14 days of once per day dosing of tadalafil 5 mg or placebo in a two-period crossover design. Daily dosing of tamsulosin 0.4 mg was added for the last seven days of each period. Blood pressure was measured manually pre-dose at two time points (-30 and -15 minutes) and then at 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, and 24 hours post dose on the first, sixth and seventh days of tamsulosin administration. Alfuzosin — A single oral dose of tadalafil 20 mg or placebo was administered in a 2-period, crossover design to healthy subjects taking once-daily alfuzosin HCl 10 mg extended-release tablets, an alpha[1]-adrenergic blocker (N=17 completed subjects).