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Cialis Soft online in Australia

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Cialis Soft

Payment methods: VISA, Mastercard, American Express, Jcb card

Availability: In stock

Prescription required for Generic Cialis Soft?: No Prescription

Active ingredient: Tadalafil

Medical form: Pills

Delivery time: EMS Trackable (5-9 days), Airmail (10 - 21 days)

What is Cialis soft used for?

Treatment of erectile dysfunction in adult men.

Sexual stimulation is required for tadalafil to be effective.

Cialis soft is not indicated for women.

Conditions for which this medicine may be prescribed

  • Erectile dysfunction

Method of administration and dosage of the drug Cialis soft

Dose

Adult male

In general, the recommended dose is 10 mg to take before any planned sexual activity, during or outside of meals.

In patients for whom a 10 mg dose of tadalafil does not produce a sufficient effect, a 20 mg dose may be recommended.

It can be taken at least 30 minutes before any sexual activity.

The maximum frequency of administration is one dose per day.

Tadalafil 10 mg and tadalafil 20 mg are indicated for sexual intercourse, but are not recommended for prolonged daily use.

In patients planning to use tadalafil frequently (at least twice a week), taking one tablet per day with lower doses of tadalafil may be considered appropriate, the decision depends on the patient's choice and the opinion of the doctor.

In these patients, the recommended dose is 5 mg daily, at approximately the same time of day. The dose can be reduced to 2.5 mg once a day, depending on individual tolerance.

The choice of daily dose should be reevaluated periodically.

Special populations

Old man

No dosage adjustment is necessary for older men.

Men with kidney failure

No dosage adjustment is necessary in patients with mild to moderate renal impairment. In patients with severe renal impairment, the maximum recommended dose is 10 mg. A daily dose of tadalafil is not recommended in these patients with severe renal impairment (see sections 4.4 and 4.4).

Men with liver failure.

The recommended dose of tadalafil is 10 mg to take before any planned sexual activity, with or without food. In patients with severe hepatic impairment (Child-Pugh class C), the clinical safety data is limited; therefore, if tadalafil is prescribed, the prescribing physician should perform a careful individual benefit / risk assessment. In patients with hepatic impairment, there are no data available on the administration of doses greater than 10 mg of tadalafil. Daily intake has not been evaluated in patients with hepatic impairment, therefore the physician should carry out a careful individual evaluation of the benefit / risk ratio after prescription (see sections Warnings and precautions for use and Pharmacokinetic properties).

Men with diabetes

No dosage adjustment is necessary in diabetic patients.

Pediatric population

The use of tadalafil in the treatment of erectile dysfunction in the pediatric population is not justified.

Administration form

Oral use.

Not all dosage recommendations are possible with 10 mg tablets; Tadalafil may also be available in 2.5mg, 5mg and 20mg tablets.

Not all strengths can be traded.

Possible side effects of Cialis soft

  • Hypersensitivity reaction
  • Angioedema
  • Headache
  • Feeling dizzy
  • Stroke
  • Syncope
  • Transient ischemic attack
  • Migraine
  • Seizures
  • Amnesia
  • Blurry vision
  • Eye pain
  • Visual field defect
  • Edema of the eyelids
  • Conjunctival hyperemia
  • Non-arteritic anterior ischemic optic neuropathy
  • Retinal vascular occlusion
  • Tinnitus
  • Sudden hearing loss
  • Tachycardia
  • Palpitation
  • Myocardial infarction
  • Unstable angina
  • Ventricular arrhythmia
  • Redness
  • Hypotension
  • Hypertension
  • Nasal congestion
  • Dyspnoea
  • Epistaxis
  • Dyspepsia
  • Abdominal pain
  • Vomiting
  • Sickness
  • Gastroesophageal reflux
  • Acne
  • Hives
  • Stevens-Johnson syndrome
  • Exfoliative dermatitis
  • Hyperhidrosis
  • Back pain
  • Myalgia
  • Pain in the extremities
  • Hematuria
  • Prolonged erection
  • Priapism
  • Bleeding from the penis
  • Hemospermia
  • Chest pain
  • Peripheral edema
  • Tired
  • Facial edema
  • Sudden cardiac death
  • Sinus bradycardia

Show more Security profile summary

The most commonly reported side effects in patients taking tadalafil for the treatment of erectile dysfunction or benign prostatic hyperplasia are: headache, dyspepsia, back pain and myalgia, the incidence of which increases with increasing tadalafil dose. Side effects reported were transient and generally mild or moderate. Most headaches reported with tadalafil taken daily occur within the first 10 to 30 days after starting treatment.

Summary table of adverse reactions

The following table presents the unwanted effects observed in spontaneous reports and in placebo-controlled clinical trials (involving a total of 8,022 patients treated with tadalafil and 4,422 patients on placebo) for on-demand treatment and daily intake of dysfunction. erectile and treatment in the daily intake of benign enlarged prostate.

Frequency convention: very common (≥ 1/10), common (≥ 1/100, minus 1/10), infrequent (≥ 1/1000, minus 1/100), rare (≥ 1/10000, minus 1 / 1,000), very rare (minus 1 / 10,000) and frequency unknown (cannot be estimated from the available data).

Very common Frequent Rare Rare
Immune system disorders.
    Hypersensitivity reactions Quincke edema2
Nervous system disorders      
  Headache Dizzying sensations Stroke1 (including bleeding events), syncope, transient ischemic attacks1, migraine2, seizures2, transient amnesia
Eye conditions      
    Blurred vision, sensations described as eye pain Visual field abnormality, eyelid edema, conjunctival hyperemia, non-arteritic anterior ischemic optic neuropathy (NOIAN) 2, retinal vascular occlusion2
Ear and labyrinth disorders.
    Tinnitus Sudden hearing loss
Heart conditions1
    Tachycardia, palpitations Myocardial infarction, unstable angina pectoris2, ventricular arrhythmia2
Vascular disorders
  Redness Hypotension3, hypertension  
Respiratory, thoracic and mediastinal disorders.
  Nasal congestion Dyspnea, epistaxis  
Gastrointestinal disorders.
  Dyspepsia Abdominal pain, vomiting, nausea, gastroesophageal reflux.  
Skin and subcutaneous tissue disorders.
    Eruption Urticaria, Stevens-Johnson syndrome2, exfoliative dermatitis2, hyperhidrosis (excessive sweating)
Musculoskeletal and connective tissue disorders.
    Back pain, myalgia, pain in the extremities.  
Kidney and urinary tract disorders.
    Hematuria  
Reproductive system and breast disorders.
    Prolonged erections Priapism, penile hemorrhage, hemospermia.
General disorders and administration site conditions.
    Chest pain1, peripheral edema, fatigue. Facial edema2, sudden cardiac death1,2

(1) Most of the patients had pre-existing cardiovascular risk factors (see section 4.4).

(2) Adverse reactions not observed have been reported in placebo-controlled clinical trials during post-marketing surveillance.

(3) It is reported more frequently in patients taking tadalafil and already being treated with antihypertensive drugs.

Description of the specific side effects.

A slight increase in the incidence of ECG abnormalities, mainly sinus bradycardia, has been reported in patients treated with tadalafil once daily compared to placebo. Most of these ECG abnormalities have not been associated with any side effects.

Other special populations.

Data from clinical trials in patients over 65 years of age treated with tadalafil for erectile dysfunction or benign prostatic hyperplasia are limited. In clinical trials with tadalafil administered on demand for the treatment of erectile dysfunction, diarrhea has been reported more frequently in patients older than 65 years. In clinical trials in patients treated with tadalafil 5 mg daily for benign enlarged prostate, dizziness and diarrhea have been reported more frequently in patients older than 75 years.

Contraindications: when not to use this medicine?

  • Hypersensitivity to tadalafil
  • Contraindication for sexual activity.
  • Myocardial infarction less than 3 months
  • Unstable angina
  • Angina that manifests during sex
  • NYHA II-IV class heart failure in the last 6 months
  • Alterations of the uncontrolled rhythm.
  • Hypotension minus 90/50 mmHg
  • Uncontrolled high blood pressure
  • Stroke in the last 6 months
  • Loss of vision in one eye due to non-arteritic anterior ischemic optic neuropathy
  • Galactose intolerance
  • Lactase deficiency
  • Glucose malabsorption syndrome
  • Galactose malabsorption syndrome
  • Excesive drinking

Show more Hypersensitivity to the active substance or to any of the excipients included in the Composition section.

In clinical trials, tadalafil has been shown to potentiate the hypotensive effect of nitrates. This would result from the combined effects of nitrates and tadalafil on the nitric oxide / cGMP pathway.

Therefore, tadalafil is contraindicated in patients receiving nitrates in any form (see section Interactions with other medicinal products and other forms of interaction).

Tadalafil should not be used in men with heart conditions for whom sexual activity is not recommended.

Physicians should assess the potential cardiac risk of sexual activity in patients with a cardiovascular history.

Since groups of patients with the following cardiovascular history were not included in clinical trials, the use of tadalafil is contraindicated in:

Patients who have had a heart attack in the last 90 days.

Patients with unstable angina or angina pain during intercourse,

Patients who have had heart failure greater than or equal to class 2 of the NYHA classification (New York Heart Association) in the last 6 months,

Patients with uncontrolled arrhythmias, low blood pressure (minus 90/50 mmHg), or uncontrolled high blood pressure,

· Patients who have had a stroke in the past 6 months.

Tadalafil is contraindicated in patients with vision loss in one eye due to anterior non-arteritic ischemic optic neuropathy (NAION), regardless of whether or not this event was associated with prior exposure to a PDE5 inhibitor (See Warnings and Precautions for Use section) .

Concomitant administration of PDE5 inhibitors, such as tadalafil, with guanylate cyclase stimulators, such as riociguat, is contraindicated due to the risk of symptomatic hypotension (see section Interactions with other medicinal products and other forms of interaction)

Presentation of this medicine

PVC / PVDC / Aluminum plates.

Boxes of 4 film-coated tablets.

Appearance and shape

Yellow, biconvex, capsule-shaped film-coated tablet with the words | T 10 "engraved on one side, the other side is smooth. Nominal dimensions: 11mm x 5mm.

Cialis soft: its other forms

  • Cialis soft 20 mg film-coated tablet, box of 4
  • Cialis soft 20 mg film-coated tablet, box of 8

Composition of the drug Cialis soft

Active principle Compressed film
Tadalafil 10 mg *

* per unit dose Active ingredients: Tadalafil Thinners with known effects? : Tablet core: lactose anhydrous, lactose monohydrate Other excipients: croscarmellose sodium, sodium lauryl sulfate, hydroxypropyl cellulose, polysorbate 80, magnesium stearate, film coating: hypromellose 2910, titanium dioxide, triacetin, talc, yellow iron oxide, iron oxide driving and using machines

Tadalafil has a negligible effect on the ability to drive and use machines. Although the frequency of dizziness reported in the placebo group and the tadalafil arm in clinical studies has been similar, patients should know how they react to tadalafil before driving or using machines.

Warnings and precautions for use

  • Reserved for men over 18
  • History of pelvic surgery in men.
  • Cardiovascular risk
  • Visual abnormality
  • Hearing loss
  • Liver failure
  • Priapism
  • Anatomic malformation of the penis.
  • Predisposition to priapism.
  • Severe kidney failure

Show more Before tadalafil treatment

A medical history and clinical examination should be performed to diagnose erectile dysfunction and determine its possible underlying causes before considering drug treatment.

Before starting any treatment for erectile dysfunction, doctors should take into account the cardiovascular status of their patients, sexual activity is accompanied by a certain cardiac risk. Tadalafil has vasodilatory properties, causing slight and transient reductions in blood pressure (see section Pharmacodynamic properties) and, as such, enhances the hypotensive effect of nitrates (see section Contraindications).

The evaluation of erectile dysfunction should include the search for possible underlying causes and the identification of a suitable treatment after an appropriate medical examination. The efficacy of tadalafil in patients who have undergone pelvic surgery or radical prostatectomy without preserving the nerve strips is unknown.

Cardiovascular

Serious cardiovascular events, such as myocardial infarction, sudden cardiac death, unstable angina, ventricular arrhythmia, stroke, and transient ischemic attacks, chest pain, palpitations, and tachycardia have been reported after marketing and / or during clinical trials. Most patients in which these events were observed, they had pre-existing cardiovascular risk factors. However, it is not possible to determine with certainty whether these events are directly related to these risk factors, tadalafil, sexual activity, a combination of these factors, or other factors.

In some patients receiving alpha1 blockers, coadministration of tadalafil may cause symptomatic hypotension (see section Interactions with other medicinal products and other forms of interaction). Therefore, the simultaneous administration of tadalafil and doxazosin is not recommended.

Ophthalmic

Visual abnormalities and cases of NOIAN (anterior non-arteritic ischemic optic neuropathy) have been reported with tadalafil and other PDE5 inhibitors. Observational data analyzes suggest an increased risk of acute NOIAN after administration of tadalafil or other PDE5 inhibitors in men with erectile dysfunction. This risk may affect all patients exposed to tadalafil, therefore the patient should be advised that in the event of a sudden visual abnormality, he should stop taking tadalafil and consult a doctor immediately (see section 4.3).

Sudden decrease or loss of hearing.

Sudden hearing loss has been reported with the use of tadalafil. Although associated risk factors were present in some cases (such as age, diabetes, hypertension, or a history of hearing loss), patients should be advised to stop taking tadalafil and seek immediate medical attention in the event of a sudden decrease or loss. of hearing.

Liver failure

There are limited clinical data regarding the safety of a single dose of tadalafil in patients with severe hepatic impairment (Child-Pugh class C). If tadalafil is prescribed, the prescribing physician should perform an individual risk / benefit assessment.

Priapism and anatomical malformation of the penis.

Patients with erections lasting 4 hours or more should be advised to seek immediate medical attention. If priapism is not treated right away, it can damage penile tissue and permanent impotence.

Tadalafil should be used with caution in patients with an anatomic malformation of the penis (such as angulation, sclerosis of the corpora cavernosa, or Peyronie's disease) or in patients with conditions that may predispose them to priapism (such as sickle cell anemia), multiple myeloma, or leukemia.

Use with CYP3A4 inhibitors

Tadalafil should be prescribed with caution in patients using strong CYP3A4 inhibitors (ritonavir, saquinavir, ketoconazole, itraconazole, and erythromycin), and an increased exposure (AUC) to tadalafil has been observed in combination with these drugs (see section Interaction with other medicinal products and other forms of interaction).

Tadalafil and other treatments for erectile dysfunction.

The efficacy and safety of tadalafil in combination with other PDE5 inhibitors or other treatments for erectile dysfunction have not been studied. Patients should be instructed not to use such associations.

Lactose

This medicine contains lactose. Its use is not recommended in patients with galactose intolerance, Lapp lactase deficiency, or malabsorption of glucose or galactose (rare inherited diseases).

Mechanism of action: how does it work?

Pharmacotherapeutic group: urological drugs, drugs used in erectile dysfunction, ATC code: G04BE08.

Mechanism of action

Tadalafil is a selective and reversible inhibitor of phosphodiesterase type 5 (PDE5), specific for cyclic guanosine monophosphate (cGMP). When sexual stimulation causes local nitric oxide release, PDE5 inhibition by tadalafil leads to an increase in the level of cGMP in the corpora cavernosa. This results in relaxation of smooth muscles and blood flow to the tissues of the penis, allowing an erection to be obtained. Tadalafil has no effect in the absence of sexual stimulation.

Pharmacodynamic effects

In vitro studies have shown that tadalafil is a selective PDE5 inhibitor. PDE5 is an enzyme found in the smooth muscles of the corpora cavernosa, vascular and visceral smooth muscles, skeletal muscles, platelets, kidneys, lungs, and cerebellum. The effect of tadalafil is greater in PDE5 than in other phosphodiesterases. The effect of tadalafil is more than 10,000 times more powerful in PDE5 than in PDE1, PDE2, and PDE4, enzymes found in the heart, brain, blood vessels, liver, and other organs. The effect of tadalafil is more than 10,000 times more powerful in PDE5 than in PDE3, an enzyme found in the heart and blood vessels.

This selectivity for PDE5 compared to PDE3 is important because PDE3 is involved in cardiac contractility. Furthermore, tadalafil is approximately 700 times more potent in PDE5 than in PDE6, an enzyme present in the retina that is responsible for phototransduction. Tadalafil is also more than 10,000 times more powerful in PDE5 than in enzymes PDE7 to PDE10.

Clinical efficacy and safety

Three clinical studies evaluated the response period to tadalafil on demand in 1,054 patients on an outpatient basis. Tadalafil statistically significantly improves erectile function and the possibility of having successful sexual relations up to 36 hours after taking it, as well as the possibility that patients obtain and maintain sufficient erections to have successful sexual relations. , from the 16th minute after taking the dose compared to placebo.

Tadalafil administered to healthy subjects did not show a significant difference, compared to placebo, in systolic and diastolic blood pressure at bedtime (mean maximum decrease of 1.6 / 0.8 mmHg, respectively), systolic and diastolic blood pressure while standing (decrease mean maximum of 0.2 / 4.6 mmHg, respectively), nor significantly altered heart rate.

In a study to assess the effects of tadalafil on vision, the Farnsworth-Munsell 100 color test did not detect any change in color distinction (blue / green). This result is consistent with the low affinity of tadalafil for PDE6 compared to PDE5. In all clinical studies, changes in color vision were rarely reported (minus 0.1%).

Three studies in men have been conducted to assess the potential effect of tadalafil 10 mg (one 6-month study) and 20 mg (6-month study and 9-month study), administered daily, on spermatogenesis. In two of these studies, there was a decrease in sperm count, as well as a decrease in sperm concentration, related to tadalafil treatment, but it is not likely to be of clinical significance. These effects were not associated with changes in other parameters, such as sperm motility and morphology, as well as FSH (follicle-stimulating hormone) level.

Tadalafil has been evaluated in 16 clinical trials at doses ranging from 2 to 100 mg, in 3,250 patients with erectile dysfunction of mild, moderate or severe severity and various etiologies, ages (range 21-86 years) and of different ethnic origins. Most of the patients had had erectile dysfunction for at least one year. In studies in the general population where efficacy was the primary criterion, 81% of patients reported that tadalafil improved their erections compared to 35% with placebo. Similarly, patients with erectile dysfunction, no matter how severe, reported an improvement in erections with tadalafil (86%, 83%, and 72% for mild, moderate, and severe forms, respectively, compared to 45%). 42% and 19% with placebo). In studies where efficacy was the primary measure, 75% of sexual attempts were successful in patients treated with tadalafil, compared to 32% with placebo.

In a 12-week study of 186 patients (142 on tadalafil and 44 on placebo) with erectile dysfunction secondary to spinal cord injury, tadalafil significantly improved erectile function and led to an average percentage of sexual intercourse. successful per subject treated with tadalafil 10 or 20 mg (flexible dose, on request) of 48% in patients taking tadalafil compared to 17% in patients treated with placebo.

Pediatric population

A study with tadalafil has only been performed in the pediatric population in children with Duchenne muscular dystrophy and no evidence of efficacy has been found. The study was randomized into 3 parallel, double-blind, placebo-controlled groups, including 331 children aged 7 to 14 years with Duchenne muscular dystrophy who received concurrent corticosteroid treatment. The study included a 48-week double-blind period during which patients were randomized to receive tadalafil 0.3 mg / kg, tadalafil 0.6 mg / kg or placebo daily. The efficacy of tadalafil has not been demonstrated in terms of reducing the decrease in exercise capacity measured by the distance traveled in 6 minutes, which was the main criterion. The average variation in distance traveled in 6 minutes at 48 weeks of treatment (least squares method) was -51.0 meters (m) in the placebo group, compared to -64.7 m in the tadalafil 0 group, 3 mg / kg (p = 0.307) and -59.1 m in the tadalafil 0.6 mg / kg group (p = 0.538). Furthermore, analysis of the secondary criteria did not reveal any efficacy. The overall safety results in this study were generally consistent with the known safety profile of tadalafil and with the expected adverse reactions in a pediatric population with Duchenne muscular dystrophy receiving corticosteroids.

The Australian Medicines Agency has waived the obligation to present the results of studies carried out in all subgroups of the pediatric population in the treatment of erectile dysfunction. See the Dosage and Method of Administration section for information on pediatric use.

Interactions: do not take this medicine with ..

Interaction studies with the 10 and / or 20 mg dose of tadalafil were performed as indicated below. With respect to interaction studies in which only the 10 mg dose was used, these do not exclude the possibility of clinically relevant interactions at higher doses.

Effects of other substances on tadalafil

Cytochrome P450 inhibitors

Tadalafil is mainly metabolized by CYP3A4. In the presence of a selective CYP3A4 inhibitor, ketoconazole (200 mg per day), the exposure (AUC) to tadalafil (10 mg) is multiplied by 2 and the C max increases by 15% compared to the AUC and C values. max observed with tadalafil alone. At a dose of 400 mg per day, ketoconazole increases the exposure (AUC) to tadalafil (20 mg) by 4 and increases the C max by 22%. Ritonavir, an antiprotease inhibitor of CYP3A4, CYP2C9, CYP2C19, and CYP2D6 (200 mg twice daily), doubles the exposure (AUC) to tadalafil (20 mg), without changing the C max. Although specific interactions have not been studied, other antiproteases, such as saquinavir, and other CYP3A4 inhibitors, such as erythromycin, clarithromycin, itraconazole, and grapefruit juice, should be administered with caution as they may increase plasma concentrations of tadalafil (see section 4.4). .

Therefore, the incidence of the side effects listed in the Side Effects section may increase.

Carriers

The role of transporters (such as glycoprotein P) in the distribution phase of tadalafil is unknown.

Therefore, there is a potential risk of drug interactions due to inhibition of the transporters.

Cytochrome P450 inducers

CYP3A4-inducing rifampin decreases the AUC of tadalafil by 88% compared to the AUC determined for tadalafil alone (10 mg). This decrease may reduce the effectiveness of tadalafil; The value of this reduction is unknown. A decrease in plasma tadalafil concentrations cannot be ruled out when combined with other CYP3A4 inducers, such as phenobarbital, phenytoin, and carbamazepine.

Effects of tadalafil on other medicines.

Nitro derivatives

Clinical studies have shown that tadalafil (5, 10 and 20 mg) increases the hypotensive effects of nitrates. Therefore, the administration of tadalafil to patients receiving nitrates in any form is contraindicated (see section 4.3). The results of a clinical study conducted in 150 patients who received daily doses of 20 mg of tadalafil for 7 days and 0.4 mg of sublingual trinitrine at various times showed that this interaction lasted more than 24 hours and was not more detectable 48 hours after the last dose of tadalafil. Therefore, in a patient taking tadalafil regardless of dose (2.5 mg - 20 mg), and in whom administration of a nitro derivative is considered necessary for life prognosis, a minimum delay of 48 hours after the last dose of tadalafil before administering a nitro derivative. In this case, nitrates should only be administered under strict medical supervision, including proper hemodynamic monitoring.

Antihypertensives (including calcium channel blockers)

Concomitant administration of doxazosin (4 mg and 8 mg daily) and tadalafil (5 mg daily dose and 20 mg single dose) significantly increases the hypotensive effect of this alpha-blocker.

This effect can last at least twelve hours and manifest as fainting symptoms. Therefore this combination is not recommended (see section 4.4).

In interaction studies in a limited number of healthy volunteers, these effects have not been reported with alfuzosin and tamsulosin. However, in patients treated with alpha-blockers, and particularly in the elderly, the use of tadalafil will be done with caution. Treatments should be started with the minimum dose; and dose adjustment should be done gradually.

The possibility that tadalafil may increase the hypotensive effects of antihypertensive drugs has been evaluated in clinical pharmacology studies. The main classes of antihypertensive drugs have been studied, including calcium channel blockers (amlodipine), angiotensin-converting enzyme (ACE) inhibitors (enalapril), beta blockers (metoprolol), thiazide diuretics (bendroflumethiazide) . ) and angiotensin II receptor antagonists (of various types and doses, alone or in combination with thiazide diuretics, calcium channel blockers, beta blockers, and / or alpha blockers). No clinically significant effect has been observed after taking tadalafil (10 mg with the exception of studies with angiotensin II receptor antagonists and amlodipine, in which a 20 mg dose was used) in combination with treatment of either of these classes. In another clinical pharmacology study, tadalafil (20 mg) was studied in combination with up to 4 classes of antihypertensive drugs. In subjects taking multiple antihypertensive drugs, changes in ambulatory blood pressure appear to be correlated with the degree of control of blood pressure. In this sense, in the patients in this study with adequately controlled blood pressure, the decrease was minimal and similar to that observed in the healthy volunteer. In patients whose blood pressure was not controlled, the decrease was greater, although it was not associated with hypotensive symptoms in most of them. In patients treated with antihypertensive drugs simultaneously, 20 mg of tadalafil may cause a decrease in blood pressure (with the exception of alpha-blockers, see above), generally less and without clinical consequences. Analysis of data from phase III clinical trials showed no difference in adverse events that occur in patients taking tadalafil with or without antihypertensive therapy. However, adequate clinical advice should be given to patients regarding the possibility of a decrease in blood pressure if treated concomitantly with antihypertensive drugs.

Riociguat

Preclinical studies have shown an increase in the systemic hypotensive effect when PDE5 inhibitors were combined with riociguat. In clinical studies, riociguat has been shown to increase the hypotensive effects of PDE5 inhibitors. No benefit of association has been demonstrated in the study population. Concomitant use of riociguat with PDE5 inhibitors, such as tadalafil, is contraindicated (see section 4.3).

5-alpha reductase inhibitors

In a clinical trial comparing the simultaneous administration of 5 mg of tadalafil and 5 mg of finasteride to placebo and 5 mg of finasteride to relieve the symptoms of benign prostatic hyperplasia, no new adverse effects were identified. Since there are no drug interaction studies that have evaluated the effects of tadalafil and 5-alpha reductase (5-ARI) inhibitors, caution should be exercised when co-administering tadalafil and 5-ARI.

CYP1A2 substrates (eg theophylline)

A clinical pharmacological study of the concomitant administration of tadalafil 10 mg and theophylline (a non-selective phosphodiesterase inhibitor) has shown no pharmacokinetic interaction. The only reported pharmacodynamic effect was a slight increase (3.5 beats / min) in heart rate. Even if this effect were considered minor and of no clinical importance in this study, this effect should be taken into account in the case of concomitant administration of these drugs.

Ethinyl estradiol and terbutaline

Tadalafil has been shown to increase the oral bioavailability of ethinyl estradiol; A similar increase is expected with oral administration of terbutaline, although the clinical consequence of this increase is uncertain.

Alcohol

Alcohol concentrations (mean maximum blood concentration of 0.08%) were not affected by concomitant administration of tadalafil (10 or 20 mg). In particular, no change in tadalafil concentrations was observed three hours after concomitant administration of alcohol, alcohol was administered to promote its absorption (overnight fast and absence of food for up to 2 hours after drinking alcohol).

Tadalafil (20 mg) does not increase the average drop in blood pressure due to alcohol (at a dose of 0.7 g / kg or approximately 180 ml of 40% alcohol [vodka] in an 80 kg man). Dizziness and orthostatic hypotension have been observed in some subjects. When tadalafil was administered with lower doses of alcohol (0.6 g / kg), no hypotension was observed. Similarly, dizziness was as common as when drinking alcohol alone. Tadalafil (10 mg) does not increase the effect of alcohol on cognitive functions.

Drugs metabolized by cytochrome P450

Tadalafil is not expected to cause clinically relevant inhibition or induction of clearance of drugs metabolized by CYP450 isoforms. Studies have confirmed that tadalafil is not an inhibitor or inducer of CYP450 isoforms, including CYP3A4, CYP1A2, CYP2D6, CYP2E1, CYP2C9 and CYP2C19.

CYP2C9 substrates (eg warfarin-R)

Tadalafil (10 mg and 20 mg) has no clinically relevant effect on exposure (AUC) to warfarin-S or warfarin-R (substrate CYP2C9), and does not affect warfarin-induced changes in prothrombin levels.

Acetylsalicylic acid

Tadalafil (10 mg and 20 mg) does not potentiate the increased bleeding time caused by acetylsalicylic acid.

Antidiabetic medications

No specific interaction study with antidiabetic treatments has been performed.

Incompatibilities

Aimlessly.

How to react in case of overdose?

Single doses of up to 500 mg have been administered to healthy subjects and multiple doses of up to 100 mg per day have been administered to patients. Adverse events were similar to those observed at lower doses.

In the event of an overdose, the usual symptomatic treatment measures should be implemented as necessary. The elimination of tadalafil by hemodialysis is insignificant.

Cialis soft: Pregnancy, lactation and fertility

Tadalafil is not indicated for women.

Pregnancy

There are limited data on the use of tadalafil in pregnant women. Animal studies do not reveal any adverse effects, direct or indirect, on the course of pregnancy, embryo / fetus development, delivery and postnatal development (see section Preclinical safety data). As a precaution, it is best to avoid using tadalafil during pregnancy.

Breastfeeding

Available pharmacodynamic / toxicological data in animals have shown excretion of tadalafil in milk.

A risk for breastfed children cannot be excluded. Tadalafil should not be used during lactation.

Fertility

Effects have been observed that may be an indicator of impaired fertility in dogs. Furthermore, two clinical studies suggest that these effects are unlikely in humans, despite a decrease in sperm concentration observed in some men (see sections Pharmacodynamic properties and preclinical safety data).

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