The secondary outcome was to assess patient compliance and any adverse effects associated with tadalafil use. Data analysis was conducted using the Statistical Package for the Social Sciences (SPSS), version 26.
- The medication can be taken with or without food.
- Common side effects include headache and flushing.
- Consult your doctor before starting tadalafil 5mg.
Categorical variables were summarized using absolute frequencies and compared using the chi-square test or Fisher’s exact test, as appropriate.
17.4 Concomitant Use with Drugs Which Lower Blood Pressure
A gradual improvement was noted at 3 and 6 months, with scores of 12.86 ± 1.56 and 15.32 ± 1.28, respectively (P < 0.001) Table 2. Regarding overall lower urinary tract symptoms (LUTS), there was no statistically significant difference between the groups in terms of baseline International Prostate Symptom Score (IPSS), with a p-value of 0.779. Both groups demonstrated a comparable improvement in IPSS, maximum urinary flow rate (Qmax), and post-void residual urine (PVR). However, there was a statistically significant difference between the two groups regarding the storage IPSS score (p value: 0.036). The mean (± SD) IPSS in Group A before transurethral resection of the prostate (TURP) was 24.18 ± 2.41, which improved to 7.31 ± 1.66, 4.46 ± 0.97, and 2.33 ± 0.69 at 1, 3, and 6 months post-TURP, respectively (P < 0.001).
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In Group B, the mean (± SD) IPSS before TURP was 24.08 ± 2.63, which improved to 9.62 ± 3.34, 5.4 ± 1.98, and 2.83 ± 1.27 at 1, 3, and 6 months post-TURP, respectively (P < 0.001) Fig.3. The mean (± SD) maximum urinary flow rate (Qmax) in Group A preoperatively was 7.54 ± 2.45, which improved to 16.05 ± 2.05, 20.32 ± 3.15, and 23.41 ± 3.38 at 1, 3, and 6 months postoperatively, respectively (P < 0.001). In Group B, the mean (± SD) Qmax preoperatively was 8.27 ± 2.28, and postoperatively it was 15.22 ± 2.0, 19.00 ± 2.1, and 21.56 ± 3.59 at 1, 3, and 6 months, respectively (P < 0.001) Fig.3. Both groups demonstrated a significant improvement in post-void residual urine (PVR), with a reduction observed at 1, 3, and 6 months following TURP. However, the difference between the two groups was not statistically significant (P = 0.2) Fig.3.
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The improvement in the Voiding IPSS score was comparable between the two groups, with no significant difference observed. A slight improvement in persistent storage symptoms was noted in Group A compared to Group B. The mean (± SD) preoperative storage symptom sub-score in Group A was 8.63 ± 1.82, which improved to 3.05 ± 0.78, 1.63 ± 0.49, and 0.92 ± 0.67 at 1, 3, and 6 months post-TURP, respectively (P < 0.001). In Group B, the mean (± SD) preoperative storage symptom sub-score was 8.03 ± 0.22, which improved to 3.22 ± 0.72, 2.48 ± 0.5, and 1.69 ± 0.47 at 1, 3, and 6 months post-TURP, respectively (P < 0.001) (Table 3). Nearly all tadalafil over the counter uk patients were compliant with daily tadalafil usage. Quantitative variables were expressed as means and standard deviations for normally distributed data, or as medians and interquartile ranges for non-normally distributed data. Between-group comparisons of quantitative variables were performed using the independent samples t-test for normally distributed data and the Mann–Whitney U test for non-normally distributed data. Within-group comparisons over two time points were analyzed using the paired samples t-test for normally distributed data and the Wilcoxon signed-rank test for non-normally distributed data. A p-value of < 0.05 was considered statistically significant, while a p-value of ≤ 0.001 was considered highly significant. Of the 270 patients assessed for eligibility, 195 were enrolled in the study. These patients were randomized into two groups: 103 patients (53%) were assigned to Group A, receiving tadalafil 5 mg once daily, and 92 patients (47%) to Group B, receiving a placebo.
- Overdose signs include painful erections lasting over 4 hours.
- Seek immediate medical attention if overdose is suspected.
- Follow dosage directions strictly to avoid complications.
The allocation process is illustrated in the CONSORT flow diagram Fig.1. There is a statistically non-significant difference between the studied groups regarding age, BMI, medical comorbidities and prostate size Table 1. With regard to erectile function, there was no statistically significant difference in baseline IIEF-5 scores between the two groups (p = 0.131). In Group A, a significant improvement in IIEF-5 scores was observed following TURP. The mean ± SD IIEF-5 score in Group A was 9.84 ± 2.6 at baseline, which increased to 11.59 ± 1.9, 19.8 ± 1.12, and 20.97 ± 0.72 at 1, 3, and 6 months postoperatively, respectively (P < 0.001), as shown in Fig.2. In contrast, Group B showed a significant decline in erectile function at 1 month post-TURP, with the IIEF-5 score decreasing from a baseline of 10.43 ± 2.81 to 4.88 ± 0.82. A gradual improvement was noted at 3 and 6 months, with scores of 12.86 ± 1.56 and 15.32 ± 1.28, respectively (P < 0.001) Table 2.
| Property | Description | Value/Notes |
|---|---|---|
| Active Ingredient | Tadalafil | 5 mg |
| Drug Class | Phosphodiesterase type 5 inhibitor | - |
| Half-life | 17.5 hours | Approximate |
| Bioavailability | ~80% | Oral administration |
| Absorption Time | 2 hours | Peak plasma concentration |
| Metabolism | Liver (via CYP3A4 enzyme) | - |
| Excretion | Feces (~61%), Urine (~36%) | - |
Regarding overall lower urinary tract symptoms (LUTS), there was no statistically significant difference between the groups in terms of baseline International Prostate Symptom Score (IPSS), with a p-value of 0.779.
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Both groups demonstrated a comparable improvement in IPSS, maximum urinary flow rate (Qmax), and post-void residual urine (PVR).
5.3 Prolonged Erection
The secondary outcome was to assess patient compliance and any adverse effects associated with tadalafil use. Data analysis was conducted using the Statistical Package for the Social Sciences (SPSS), version 26. Categorical variables were summarized using absolute frequencies and compared using the chi-square test or Fisher’s exact test, as appropriate. Quantitative variables were expressed as means and standard deviations for normally distributed data, or as medians and interquartile ranges for non-normally distributed data. Between-group comparisons of quantitative variables were performed using the independent samples t-test for normally distributed data and the Mann–Whitney U test for non-normally distributed data.
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Within-group comparisons over two time points were analyzed using the paired samples t-test for normally distributed data and the Wilcoxon signed-rank test for non-normally distributed data. A p-value of < 0.05 was considered statistically significant, while a p-value of ≤ 0.001 was considered highly significant. Of the 270 patients assessed for eligibility, 195 were enrolled in the study. These patients were randomized into two groups: 103 patients (53%) were assigned to Group A, receiving tadalafil 5 mg once daily, and 92 patients (47%) to Group B, receiving a placebo. The allocation process is illustrated in the CONSORT flow diagram Fig.1.
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There is a statistically non-significant difference between the studied groups regarding age, BMI, medical comorbidities and prostate size Table 1. With regard to erectile function, there was no statistically significant difference in baseline IIEF-5 scores between the two groups (p = 0.131). In Group A, a significant improvement in IIEF-5 scores was observed following TURP. The mean ± SD IIEF-5 score in Group A was 9.84 ± 2.6 at baseline, which increased to 11.59 ± 1.9, 19.8 ± 1.12, and 20.97 ± 0.72 at 1, 3, and 6 months postoperatively, respectively (P < 0.001), as shown in Fig.2. In contrast, Group B showed a significant decline in erectile function at 1 month post-TURP, with the IIEF-5 score decreasing from a baseline of 10.43 ± 2.81 to 4.88 ± 0.82. However, there was a statistically significant difference between the two groups regarding the storage IPSS score (p value: 0.036). The mean (± SD) IPSS in Group A before transurethral resection of the prostate (TURP) was 24.18 ± 2.41, which improved to 7.31 ± 1.66, 4.46 ± 0.97, and 2.33 ± 0.69 at 1, 3, and 6 months post-TURP, respectively (P < 0.001). In Group B, the mean (± SD) IPSS before TURP was 24.08 ± 2.63, which improved to 9.62 ± 3.34, 5.4 ± 1.98, and 2.83 ± 1.27 at 1, 3, and 6 months post-TURP, respectively (P < 0.001) Fig.3. The mean (± SD) maximum urinary flow rate (Qmax) in Group A preoperatively was 7.54 ± 2.45, which improved to 16.05 ± 2.05, 20.32 ± 3.15, and 23.41 ± 3.38 at 1, 3, and 6 months postoperatively, respectively (P < 0.001). In Group B, the mean (± SD) Qmax preoperatively was 8.27 ± 2.28, and postoperatively it was 15.22 ± 2.0, 19.00 ± 2.1, and 21.56 ± 3.59 at 1, 3, and 6 months, respectively (P < 0.001) Fig.3.
17.9 Alcohol
We found that tadalafil 5 mg has a slight improvement in persistent storage symptoms post-TURP. The data is contained within the manuscript, any missing details will be available from the corresponding author on reasonable request. Interactions between Lower Urinary Tract Symptoms and Cardiovascular Risk Factors Determine Distinct Patterns of Erectile Dysfunction: A Latent Class Analysis. Brock G, Broderick G, Roehrborn CG, Xu L, Wong D, Viktrup L. Tadalafil once daily in the treatment of lower urinary tract symptoms (
14.1 Tadalafil Tablets for Use as Needed for ED
Regarding adverse effects, only 13 patients reported mild headaches and runny noses for a short duration. These symptoms did not result in discontinuation of tadalafil treatment. PDE5-I treatment was more effective than placebo in patients with ED following nerve-sparing radical prostatectomy, promoting the recovery of erectile function and potentially protecting against penile structural changes [10]. Tadalafil is safe and effective, and can be used as the first-line medication for the clinical treatment on male ED after transurethral resection of prostate [25]. Administration of 5 mg tadalafil once daily resulted in significant improvements in total International Prostate Symptom Score (IPSS), including both voiding and storage subscores, as well as enhancements in IPSS-related quality of life (QoL) and the BPH Impact Index (BII) [4].
Impact of patient characteristics and comorbidities on erectile function and treatment satisfaction during treatment with tadalafil OaD
Similarly, in our study, and to the best of our knowledge, this is the first trial to compare the effects of early post-TURP administration of tadalafil 5 mg on persistent storage symptoms and erectile function. In elderly men, ED and LUTS associated with benign prostatic enlargement (BPE) are highly prevalent comorbid conditions that negatively impact quality of life (QoL) and impose a significant economic burden. Preclinical and clinical studies have established that, in addition to aging, various metabolic factors contribute to the onset and progression of both ED and LUTS, leading to penile and nerve alterations, as well as prostate enlargement and inflammation [8]. TURP is widely recognized as the most effective traditional surgical method for treating BPH. Once the bladder is relieved of obstruction, the thickened bladder wall undergoes atrophy, restoring its elasticity and alleviating irritative symptoms.
Corresponding author
Notably, the degree of symptom improvement is reported to be particularly high in patients with severe preoperative irritative symptoms [14]. However, a recent study indicated that TURP does not alleviate irritative symptoms in all patients, with 20% to 30% requiring postoperative medication due to persistent symptoms, ultimately leading to a decline in quality of life. Several clinical studies have demonstrated significant improvements in LUTS with the use of PDE5 inhibitors. Although the precise mechanism underlying LUTS improvement with PDE5 inhibitors remains unclear, proposed mechanisms include the relaxation of smooth muscle cells in the urogenital tract via the NO/cGMP/PDE5 pathway [13]. In our study, we observed a significant improvement in erectile function in Group A. Nearly all tadalafil over the counter uk patients were compliant with daily tadalafil usage. Regarding adverse effects, only 13 patients reported mild headaches and runny noses for a short duration. These symptoms did not result in discontinuation of tadalafil treatment. PDE5-I treatment was more effective than placebo in patients with ED following nerve-sparing radical prostatectomy, promoting the recovery of erectile function and potentially protecting against penile structural changes [10]. Tadalafil is safe and effective, and can be used as the first-line medication for the clinical treatment on male ED after transurethral resection of prostate [25]. Administration of 5 mg tadalafil once daily resulted in significant improvements in total International Prostate Symptom Score (IPSS), including both voiding and storage subscores, as well as enhancements in IPSS-related quality of life (QoL) and the BPH Impact Index (BII) [4].
6.1 Clinical Trials Experience
Broderick GA, Brock GB, Roehrborn CG, Watts SD, Elion-Mboussa A, Viktrup L. Similarly, in our study, and to the best of our knowledge, this is the first trial to compare the effects of early post-TURP administration of tadalafil 5 mg on persistent storage symptoms and erectile function. In elderly men, ED and LUTS associated with benign prostatic enlargement (BPE) are highly prevalent comorbid conditions that negatively impact quality of life (QoL) and impose a significant economic burden. Preclinical and clinical studies have established that, in addition to aging, various metabolic factors contribute to the onset and progression of both ED and LUTS, leading to penile and nerve alterations, as well as prostate enlargement and inflammation [8]. TURP is widely recognized as the most effective traditional surgical method for treating BPH. Once the bladder is relieved of obstruction, the thickened bladder wall undergoes atrophy, restoring its elasticity and alleviating irritative symptoms. Notably, the degree of symptom improvement is reported to be particularly high in patients with severe preoperative irritative symptoms [14]. However, a recent study indicated that TURP does not alleviate irritative symptoms in all patients, with 20% to 30% requiring postoperative medication due to persistent symptoms, ultimately leading to a decline in quality of life.
| Side Effect | Frequency | Severity | Additional Comments |
|---|---|---|---|
| Headache | Common | Mild | Usually resolves spontaneously |
| Indigestion | Common | Mild | May be reduced with food |
| Back Pain | Less common | Mild | Usually occurs with higher doses |
| Flushing | Common | Mild | Redness of face and neck |
| Dizziness | Less common | Moderate | Avoid driving if affected |
Several clinical studies have demonstrated significant improvements in LUTS with the use of PDE5 inhibitors. Although the precise mechanism underlying LUTS improvement with PDE5 inhibitors remains unclear, proposed mechanisms include the relaxation of smooth muscle cells in the urogenital tract via the NO/cGMP/PDE5 pathway [13]. In our study, we observed a significant improvement in erectile function in Group A. The mean (± SD) IIEF score in Group A was 9.84 ± 2.6 before TURP, increasing to 11.59 ± 1.9, 19.8 ± 1.12, and 20.97 ± 0.72 at 1, 3, and 6 months post-TURP, respectively (P < 0.001).
- Tadalafil 5mg has a duration of action up to 36 hours.
- It can improve spontaneous sexual activity.
- Dosage adjustments may be necessary for certain health conditions.
Regarding overall LUTS, both groups demonstrated comparable improvements in IPSS, Qmax, and PVR. However, in Group A, there was a slight greater improvement in persistent irritative symptoms than Group B. The mean (± SD) preoperative storage symptom sub-score was 8.63 ± 1.82, which decreased to 3.05 ± 0.78, 1.63 ± 0.49, and 0.92 ± 0.67 at 1, 3, and 6 months post-TURP, respectively (P < 0.001). Similarly, in the first systematic review on the use of PDE5 inhibitors for LUTS, Laydner et al.
2.3 Tadalafil Tablets for Once Daily Use for Benign Prostatic Hyperplasia
The mean (± SD) IIEF score in Group A was 9.84 ± 2.6 before TURP, increasing to 11.59 ± 1.9, 19.8 ± 1.12, and 20.97 ± 0.72 at 1, 3, and 6 months post-TURP, respectively (P < 0.001). Regarding overall LUTS, both groups demonstrated comparable improvements in IPSS, Qmax, and PVR. However, in Group A, there was a slight greater improvement in persistent irritative symptoms than Group B. The mean (± SD) preoperative storage symptom sub-score was 8.63 ± 1.82, which decreased to 3.05 ± 0.78, 1.63 ± 0.49, and 0.92 ± 0.67 at 1, 3, and 6 months post-TURP, respectively (P < 0.001). Similarly, in the first systematic review on the use of PDE5 inhibitors for LUTS, Laydner et al.
Some side effects can be serious. If you experience any of these symptoms, call your doctor immediately or get emergency medical treatment:
reported that PDE5 inhibitors improve the IPSS score and IIEF-5 but do not significantly affect Qmax [15]. Several randomized controlled trials (RCTs) have demonstrated that PDE5 inhibitors significantly reduce IPSS scores, improving both storage and voiding LUTS, and enhancing patients'quality of life. Similarly, a meta-analysis reported significant improvements in IPSS and IIEF scores with PDE5 inhibitor use, though no significant change was observed in Qmax. Additionally, another study found that tadalafil was both effective and well tolerated in the treatment of erectile dysfunction (ED) and LUTS in sexually active men with both conditions, with significant improvements observed irrespective of baseline severity [21]. This study represents the first prospective trial of penile rehabilitation using tadalafil 5 mg once daily post-TURP.
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However, several limitations were identified in this study. First, the sample size was relatively small, and therefore, a larger-scale study involving a more extensive population is recommended for more robust conclusions. Additionally, the study did not compare the outcomes of patients who received tadalafil on demand with those who received tadalafil on a daily basis early postoperatively. Also, Further clinical studies with longer follow-up periods are necessary to comprehensively assess the long-term effects of tadalafil on erectile function and irritative symptoms following transurethral resection of the prostate (TURP). In comparison to placebo, early Tadalafil 5 mg daily monotherapy after TURP can improve erectile dysfunction. reported that PDE5 inhibitors improve the IPSS score and IIEF-5 but do not significantly affect Qmax [15]. Several randomized controlled trials (RCTs) have demonstrated that PDE5 inhibitors significantly reduce IPSS scores, improving both storage and voiding LUTS, and enhancing patients'quality of life. Similarly, a meta-analysis reported significant improvements in IPSS and IIEF scores with PDE5 inhibitor use, though no significant change was observed in Qmax. Additionally, another study found that tadalafil was both effective and well tolerated in the treatment of erectile dysfunction (ED) and LUTS in sexually active men with both conditions, with significant improvements observed irrespective of baseline severity [21]. This study represents the first prospective trial of penile rehabilitation using tadalafil 5 mg once daily post-TURP. However, several limitations were identified in this study. First, the sample size was relatively small, and therefore, a larger-scale study involving a more extensive population is recommended for more robust conclusions. Additionally, the study did not compare the outcomes of patients who received tadalafil on demand with those who received tadalafil on a daily basis early postoperatively. Also, Further clinical studies with longer follow-up periods are necessary to comprehensively assess the long-term effects of tadalafil on erectile function and irritative symptoms following transurethral resection of the prostate (TURP).
- Tadalafil 5mg may interact with other medications.
- Follow prescribed instructions for safe use.
- Misuse can lead to serious health risks or side effects.
In comparison to placebo, early Tadalafil 5 mg daily monotherapy after TURP can improve erectile dysfunction. We found that tadalafil 5 mg has a slight improvement in persistent storage symptoms post-TURP. The data is contained within the manuscript, any missing details will be available from the corresponding author on reasonable request. Interactions between Lower Urinary Tract Symptoms and Cardiovascular Risk Factors Determine Distinct Patterns of Erectile Dysfunction: A Latent Class Analysis. Brock G, Broderick G, Roehrborn CG, Xu L, Wong D, Viktrup L. Tadalafil once daily in the treatment of lower urinary tract symptoms (
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