Mechanism of Action: How Tadalafil Works for 36 Hours

It doesn’t cause arousal — you’ll only get an erection when you’re feeling aroused.Dr Philip Ryan Whitman There are two options to choose from: Take one pill on demand 30–60 minutes before sex, for support up to 36 hours. Or take a lower strength pill daily.

This maintains a constant level in your body, supporting you 24/7. Answer quick questionsNo in-person appointments, just a quick online consultation.1.

Avoiding Interactions

Less common

Answer quick questionsNo in-person appointments, just a quick online consultation. Share your symptoms and a brief medical history in around two minutes, all from the comfort of your home. No in-person appointments, just a quick online consultation.

Choose without prescription cialis soft your treatmentSelect from our recommended FDA-approved medications.2. Choose your treatmentSelect from our recommended FDA-approved medications. All treatments are backed by our lowest price guarantee, and you don’t need an existing prescription.

Dosing & Uses

We’ll discreetly deliver direct to you, as quickly as tomorrow. We’ll deliver direct to you, as quickly as tomorrow. Starting prices for all pack sizes.Strengths available: 2.5mg, 5mg, 10mg and 20mg 2 Months (60 tablets)Saves $30.00 3 Months (90 tablets)Saves $67.50 You still need to be aroused for either option to work. Tadalafil won’t give you an erection automatically if you’re not aroused, so start in foreplay for best results. Tadlafil won’t give you an erection automatically if you’re not aroused, so start in foreplay for best results.

Cialis and foods

Tadalafil is the active ingredient in Cialis®, and is also available as a generic, unbranded tablet. Both treatments are medically identical, but branded Cialis® costs up to 95% more because of the premium brand name.Generic manufacturers have to demonstrate that they are medically identical to the branded product — in other words, they offer the same quality, strength, stability and effectiveness. We ship every order in cialis pricing 20mg plain, discreet packaging, without any branding or labels. You don’t need health insurance or an existing prescription to use our service. Our clinicians will issue a free private prescription if you’re eligible for treatment.

Discover more about Cialis

After you’ve filled out the online consultation, you’ll be able to choose from recommended treatments for erectile dysfunction.You’ll have the option to make a one-time purchase, or start a subscription.If you subscribe we’ll automatically refill your treatment so you don’t run out, without the need to regularly complete a consultation or checkout. You can cancel subscription online at anytime. Order in6 hrs 4 minsfor delivery by tomorrow All content on this page has been medically reviewed by: Hassan Thwaini, Clinical Pharmacist and Copywriter, Master of Pharmacy (MPharm) on 30 March, 2026. Tadalafil is a clinically-proven erectile dysfunction treatment that gives you the freedom to enjoy sex when you want it. It lasts for 36 hours - so 2 5 mg cialis daily there’s less need for planning before sex. Select from our recommended FDA-approved medications. Get it delivered fastWe’ll discreetly deliver direct to you, as quickly as tomorrow.3. Get it delivered fastWe’ll deliver direct to you, as quickly as tomorrow.

We always use discreet logo-free packaging, so only you know what’s inside. After it arrives, get ongoing support from our team.

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We’ll discreetly deliver direct to you, as quickly as tomorrow. We’ll deliver direct to you, as quickly as tomorrow.

Dosage Recommendations

It doesn’t cause arousal — you’ll only get an erection when you’re feeling aroused.Dr Philip Ryan Whitman There are two options to choose from: Take one pill on demand 30–60 minutes before sex, for support up to 36 hours. Or take a lower strength pill daily. This maintains a constant level in your body, supporting you 24/7. Answer quick questionsNo in-person appointments, just a quick online consultation.1. Answer quick questionsNo in-person appointments, just a quick online consultation.

Postmarketing reports

Share your symptoms and a brief medical history in around two minutes, all from the comfort of your home. No in-person appointments, just a quick online consultation. Choose without prescription cialis soft your treatmentSelect from our recommended FDA-approved medications.2. Choose your treatmentSelect from our recommended FDA-approved medications. All treatments are backed by our lowest price guarantee, and you don’t need an existing prescription.

Who can take it

Select from our recommended FDA-approved medications. Get it delivered fastWe’ll discreetly deliver direct to you, as quickly as tomorrow.3. Get it delivered fastWe’ll deliver direct to you, as quickly as tomorrow. We always use discreet logo-free packaging, so only you know what’s inside. After it arrives, get ongoing support from our team. Starting prices for all pack sizes.Strengths available: 2.5mg, 5mg, 10mg and 20mg 2 Months (60 tablets)Saves $30.00 3 Months (90 tablets)Saves $67.50 You still need to be aroused for either option to work. Tadalafil won’t give you an erection automatically if you’re not aroused, so start in foreplay for best results. Tadlafil won’t give you an erection automatically if you’re not aroused, so start in foreplay for best results.

• Cialis Weekend Pill offers an alternative to injections.
• It’s ideal for spontaneous or planned activity.
• It should not be used with other ED medications.
• Generic versions are often more affordable.
• The pill may cause visual disturbances in rare cases.
• Regular exercise and healthy eating support efficacy.
• Follow-up with a healthcare provider is advisable.
• Side effects are usually mild and temporary.
• Use caution if you have heart conditions.
• The pill is not intended for use during sleep.
• Keep out of reach of children and pets.

Tadalafil is the active ingredient in Cialis®, and is also available as a generic, unbranded tablet. Both treatments are medically identical, but branded Cialis® costs up to 95% more because of the premium brand name.Generic manufacturers have to demonstrate that they are medically identical to the branded product — in other words, they offer the same quality, strength, stability and effectiveness. We ship every order in cialis pricing 20mg plain, discreet packaging, without any branding or labels. You don’t need health insurance or an existing prescription to use our service. Our clinicians will issue a free private prescription if you’re eligible for treatment.

After you’ve filled out the online consultation, you’ll be able to choose from recommended treatments for erectile dysfunction.You’ll have the option to make a one-time purchase, or start a subscription.If you subscribe we’ll automatically refill your treatment so you don’t run out, without the need to regularly complete a consultation or checkout. You can cancel subscription online at anytime. Order in6 hrs 4 minsfor delivery by tomorrow All content on this page has been medically reviewed by: Hassan Thwaini, Clinical Pharmacist and Copywriter, Master of Pharmacy (MPharm) on 30 March, 2026.

How Food Affects Effectiveness

Find the clinically proven ED treatment that suits you best. No names, no logos, no delivery fee. 4.6* from over 33,000 people like you. BSc (Hons) MBBS MRCGP AFHEA MA (Hons) AFMCP Answer a few simple questions to get the treatment you need. Indicated for treatment of erectile dysfunction (ED) Cialis (or generic equivalent) or Chewtadzy only PRN use: 10 mg PO initially before sexual activity, with or without food; may be increased to 20 mg or reduced to 5 mg on basis of efficacy and tolerability; in most patients, maximum dosing frequency is once daily Once-daily use (Cialis): 2.5 mg/day PO in single daily dose, without regard to timing of sexual activity, with or without food; may be increased to 5 mg/day on basis of efficacy and tolerability Indicated for treatment of signs and symptoms of benign prostatic hyperplasia (BPH); daily use also indicated for treatment of patients with both BPH and erectile dysfunction Cialis (or generic equivalent) or Chewtadzy only BPH with ED: 5 mg PO once daily, taken at approximately same time each day without regard to timing of sexual activity Coadministration with finasteride for BPH: Tadalafil 5 mg plus finasteride 5 mg PO once daily for ≤26 weeks; incremental benefit of tadalafil decreases from 4 weeks until 26 weeks, and the benefit beyond 26 weeks is unknown Indicated for pulmonary arterial hypertension (PAH) (WHO Group 1) to improve exercise ability; studies establishing effectiveness included predominately patients with NYHA Functional Class II – III symptoms and etiologies of idiopathic or heritable PAH (61%) or PAH associated with connective tissue diseases (23%) Adcirca, Alyq, Tadliq, or generic equivalent only 40 mg PO once daily; dividing dose for more frequent dosing is not recommended Patients also taking ritonavir: 20 mg PO once daily initially for ≥1 week; may be increased to 40 mg/day on basis of tolerability Cialis, Chewtadzy (PRN use)Mild (CrCl >50 mL/min): No dosage adjustment neededModerate (CrCl 30-50 mL/min): Not to exceed 5 mg PO once daily initially; maximum dosage, 10 mg PO q48hrSevere (CrCl <30 mL/min and on hemodialysis): Not to exceed 5 mg PO q72hr Mild (CrCl >50 mL/min): No dosage adjustment needed Moderate (CrCl 30-50 mL/min): Not to exceed 5 mg PO once daily initially; maximum dosage, 10 mg PO q48hr Severe (CrCl <30 mL/min and on hemodialysis): Not to exceed 5 mg PO q72hr Cialis (once daily use)ED (CrCl >50 mL/min): No dosage adjustment neededBPH or BPH/ED (CrCl 30-50 mL/min): 2.5 mg/day starting dose recommended; may increase to 5 mg according to individual responseED or BPH (CrCl <30 mL/min or hemodialysis): Not recommended ED (CrCl >50 mL/min): No dosage adjustment needed BPH or BPH/ED (CrCl 30-50 mL/min): 2.5 mg/day starting dose recommended; may increase to 5 mg according to individual response ED or BPH (CrCl <30 mL/min or hemodialysis): Not recommended Chewtadzy (once daily use)BPH, ED/BPHCrCl >50 mL/min: No dosage adjustment neededCrCl ≤50 mL/min or hemodialysis: Not recommended CrCl >50 mL/min: No dosage adjustment needed CrCl ≤50 mL/min or hemodialysis: Not recommended Adcirca, Alyq, TadliqMild-to-moderate (CrCl 31-80 mL/min): 20 mg PO once daily initially; may be increased to 40 mg once daily on basis of tolerabilitySevere (CrCl <30 mL/min and on hemodialysis): Avoid use Mild-to-moderate (CrCl 31-80 mL/min): 20 mg PO once daily initially; may be increased to 40 mg once daily on basis of tolerability Severe (CrCl <30 mL/min and on hemodialysis): Avoid use Cialis, Chewtadzy (PRN use)Mild-to-moderate (Child-Pugh class A or B): Not to exceed 10 mg PO once dailySevere (Child-Pugh class C): Not recommended Mild-to-moderate (Child-Pugh class A or B): Not to exceed 10 mg PO once daily Severe (Child-Pugh class C): Not recommended Cialis, Chewtadzy (once daily use)Mild-to-moderate (Child-Pugh class A or B): Data limited; caution advisedSevere (Child-Pugh class C): Not recommended Mild-to-moderate (Child-Pugh class A or B): Data limited; caution advised Severe (Child-Pugh class C): Not recommended Adcirca, Alyq, TadliqMild-to-moderate (Child-Pugh class A or B): Consider starting dosage of 20 mg PO once dailySevere (Child-Pugh class C): Avoid use Mild-to-moderate (Child-Pugh class A or B): Consider starting dosage of 20 mg PO once daily Severe (Child-Pugh class C): Avoid use ED PRN use: Not to exceed 10 mg/72 hr ED or ED/BPH once-daily use: Not to exceed 2.5 mg/day Adcirca, Alyq, TadliqOn ritonavir for at least 1 week: Start tadalafil at 20 mg PO qDay; may increase to 40 qDay based on individual tolerabilityAvoid tadalafil during ritonavir initiationStop tadalafil at least 24 hr before to starting ritonavirAfter at least 1 week following ritonavir initiation, resume tadalafil 20 mg PO qDay; may increase to 40 qDay based on individual tolerability On ritonavir for at least 1 week: Start tadalafil at 20 mg PO qDay; may increase to 40 qDay based on individual tolerability Stop tadalafil at least 24 hr before to starting ritonavir After at least 1 week following ritonavir initiation, resume tadalafil 20 mg PO qDay; may increase to 40 qDay based on individual tolerability Chewtadzy: Not indicated for once daily use for ED because dosing is not possible (recommended dosage for this indication cannot be achieved with lowest available strength) Orphan designation for Duchenne muscular dystrophy (DMD) Eli Lilly and Company; Lilly Corporate Center; Indianapolis, IN 46285 Indicated for treatment of erectile dysfunction (ED) Cialis or generic equivalent only: No dosage adjustment is warranted solely on basis of age; however, greater sensitivity to medications in some older individuals should be considered Indicated for pulmonary arterial hypertension (PAH) (WHO Group 1) to improve exercise ability; studies establishing effectiveness included predominately patients with NYHA Functional Class II – III symptoms and etiologies of idiopathic or heritable PAH (61%) or PAH associated with connective tissue diseases (23%) Adcirca, Alyq, or generic equivalent only: Lower dose or reduced dosing frequency may be required in elderly because of decreased renal or hepatic clearance Allow 48h after last tadalafil dose before nitrate administration.

Cialis form and strengths

Allow 48h after last tadalafil dose before nitrate administration. nitroglycerin rectaltadalafil increases effects of nitroglycerin rectal by additive vasodilation. Use of nitroglycerin within a few days of PDE5 inhibitors is contraindicated. PDE5 inhibitors have been shown to potentiate the hypotensive effects of organic nitrates. tadalafil increases effects of nitroglycerin rectal by additive vasodilation.

How does tadalafil work (mechanism of action)?

Either increases effects of the other by additive vasodilation. Coadministration of PDE-5 inhibitors (eg, avanafil, sildenafil, tadalafil, vardenafil) and guanylate cyclase stimulators (eg, riociguat) is contraindicated due to risk of additive hypotension; do not administer 24 hr before or within 48hr of each other. Tadalafil is a clinically-proven erectile dysfunction treatment that gives you the freedom to enjoy sex when you want it.

See also:

It lasts for 36 hours - so 2 5 mg cialis daily there’s less need for planning before sex. Find the clinically proven ED treatment that suits you best.

• Cialis Weekend Pill can be a part of lifestyle adjustments.
• Regular check-ups improve safety.
• It is not suitable for everyone, including those with certain heart issues.
• The duration of effectiveness varies.
• Food, alcohol, and other drugs can influence results.
• Always read manufacturer instructions carefully.
• Be cautious of counterfeit pills.
• Discuss any side effects with your doctor.
• The pill is for male use only.
• It’s recommended to start with the lowest dose.
• Use the medication as part of a healthy routine.

No names, no logos, no delivery fee. 4.6* from over 33,000 people like you. BSc (Hons) MBBS MRCGP AFHEA MA (Hons) AFMCP Answer a few simple questions to get the treatment you need.

• Cialis Weekend Pill is a popular ED treatment option.
• It’s effective even if previous medications failed.
• The medication is designed for weekend use.
• It’s important to understand possible side effects.
• Not for use by individuals with allergy to tadalafil.
• Always consult a healthcare professional before starting.
• The pill’s effects can last longer than other medications.
• It may help improve overall sexual confidence.
• Buying from reputable sources ensures safety.
• Read dosage instructions carefully before use.
• Do not mix with recreational drugs.

Indicated for treatment of erectile dysfunction (ED) Cialis (or generic equivalent) or Chewtadzy only PRN use: 10 mg PO initially before sexual activity, with or without food; may be increased to 20 mg or reduced to 5 mg on basis of efficacy and tolerability; in most patients, maximum dosing frequency is once daily Once-daily use (Cialis): 2.5 mg/day PO in single daily dose, without regard to timing of sexual activity, with or without food; may be increased to 5 mg/day on basis of efficacy and tolerability Indicated for treatment of signs and symptoms of benign prostatic hyperplasia (BPH); daily use also indicated for treatment of patients with both BPH and erectile dysfunction Cialis (or generic equivalent) or Chewtadzy only BPH with ED: 5 mg PO once daily, taken at approximately same time each day without regard to timing of sexual activity Coadministration with finasteride for BPH: Tadalafil 5 mg plus finasteride 5 mg PO once daily for ≤26 weeks; incremental benefit of tadalafil decreases from 4 weeks until 26 weeks, and the benefit beyond 26 weeks is unknown Indicated for pulmonary arterial hypertension (PAH) (WHO Group 1) to improve exercise ability; studies establishing effectiveness included predominately patients with NYHA Functional Class II – III symptoms and etiologies of idiopathic or heritable PAH (61%) or PAH associated with connective tissue diseases (23%) Adcirca, Alyq, Tadliq, or generic equivalent only 40 mg PO once daily; dividing dose for more frequent dosing is not recommended Patients also taking ritonavir: 20 mg PO once daily initially for ≥1 week; may be increased to 40 mg/day on basis of tolerability Cialis, Chewtadzy (PRN use)Mild (CrCl >50 mL/min): No dosage adjustment neededModerate (CrCl 30-50 mL/min): Not to exceed 5 mg PO once daily initially; maximum dosage, 10 mg PO q48hrSevere (CrCl <30 mL/min and on hemodialysis): Not to exceed 5 mg PO q72hr Mild (CrCl >50 mL/min): No dosage adjustment needed Moderate (CrCl 30-50 mL/min): Not to exceed 5 mg PO once daily initially; maximum dosage, 10 mg PO q48hr Severe (CrCl <30 mL/min and on hemodialysis): Not to exceed 5 mg PO q72hr Cialis (once daily use)ED (CrCl >50 mL/min): No dosage adjustment neededBPH or BPH/ED (CrCl 30-50 mL/min): 2.5 mg/day starting dose recommended; may increase to 5 mg according to individual responseED or BPH (CrCl <30 mL/min or hemodialysis): Not recommended ED (CrCl >50 mL/min): No dosage adjustment needed BPH or BPH/ED (CrCl 30-50 mL/min): 2.5 mg/day starting dose recommended; may increase to 5 mg according to individual response ED or BPH (CrCl <30 mL/min or hemodialysis): Not recommended Chewtadzy (once daily use)BPH, ED/BPHCrCl >50 mL/min: No dosage adjustment neededCrCl ≤50 mL/min or hemodialysis: Not recommended CrCl >50 mL/min: No dosage adjustment needed CrCl ≤50 mL/min or hemodialysis: Not recommended Adcirca, Alyq, TadliqMild-to-moderate (CrCl 31-80 mL/min): 20 mg PO once daily initially; may be increased to 40 mg once daily on basis of tolerabilitySevere (CrCl <30 mL/min and on hemodialysis): Avoid use Mild-to-moderate (CrCl 31-80 mL/min): 20 mg PO once daily initially; may be increased to 40 mg once daily on basis of tolerability Severe (CrCl <30 mL/min and on hemodialysis): Avoid use Cialis, Chewtadzy (PRN use)Mild-to-moderate (Child-Pugh class A or B): Not to exceed 10 mg PO once dailySevere (Child-Pugh class C): Not recommended Mild-to-moderate (Child-Pugh class A or B): Not to exceed 10 mg PO once daily Severe (Child-Pugh class C): Not recommended Cialis, Chewtadzy (once daily use)Mild-to-moderate (Child-Pugh class A or B): Data limited; caution advisedSevere (Child-Pugh class C): Not recommended Mild-to-moderate (Child-Pugh class A or B): Data limited; caution advised Severe (Child-Pugh class C): Not recommended Adcirca, Alyq, TadliqMild-to-moderate (Child-Pugh class A or B): Consider starting dosage of 20 mg PO once dailySevere (Child-Pugh class C): Avoid use Mild-to-moderate (Child-Pugh class A or B): Consider starting dosage of 20 mg PO once daily Severe (Child-Pugh class C): Avoid use ED PRN use: Not to exceed 10 mg/72 hr ED or ED/BPH once-daily use: Not to exceed 2.5 mg/day Adcirca, Alyq, TadliqOn ritonavir for at least 1 week: Start tadalafil at 20 mg PO qDay; may increase to 40 qDay based on individual tolerabilityAvoid tadalafil during ritonavir initiationStop tadalafil at least 24 hr before to starting ritonavirAfter at least 1 week following ritonavir initiation, resume tadalafil 20 mg PO qDay; may increase to 40 qDay based on individual tolerability On ritonavir for at least 1 week: Start tadalafil at 20 mg PO qDay; may increase to 40 qDay based on individual tolerability Stop tadalafil at least 24 hr before to starting ritonavir After at least 1 week following ritonavir initiation, resume tadalafil 20 mg PO qDay; may increase to 40 qDay based on individual tolerability Chewtadzy: Not indicated for once daily use for ED because dosing is not possible (recommended dosage for this indication cannot be achieved with lowest available strength) Orphan designation for Duchenne muscular dystrophy (DMD) Eli Lilly and Company; Lilly Corporate Center; Indianapolis, IN 46285 Indicated for treatment of erectile dysfunction (ED) Cialis or generic equivalent only: No dosage adjustment is warranted solely on basis of age; however, greater sensitivity to medications in some older individuals should be considered Indicated for pulmonary arterial hypertension (PAH) (WHO Group 1) to improve exercise ability; studies establishing effectiveness included predominately patients with NYHA Functional Class II – III symptoms and etiologies of idiopathic or heritable PAH (61%) or PAH associated with connective tissue diseases (23%) Adcirca, Alyq, or generic equivalent only: Lower dose or reduced dosing frequency may be required in elderly because of decreased renal or hepatic clearance Allow 48h after last tadalafil dose before nitrate administration. Allow 48h after last tadalafil dose before nitrate administration. nitroglycerin rectaltadalafil increases effects of nitroglycerin rectal by additive vasodilation.

• Cialis Weekend Pill is used globally for ED.
• It works by relaxing smooth muscles.
• The medication is approved by health agencies.
• It’s safe when used as directed.
• Certain foods and drinks may affect absorption.
• The pill offers weekend performance support.
• It’s not a cure but helps manage symptoms.
• Dose adjustments may be necessary for some.
• Avoid driving if you experience side effects.
• Do not take more than prescribed.
• Keep track of side effects and report them.

Use of nitroglycerin within a few days of PDE5 inhibitors is contraindicated. PDE5 inhibitors have been shown to potentiate the hypotensive effects of organic nitrates. tadalafil increases effects of nitroglycerin rectal by additive vasodilation. Either increases effects of the other by additive vasodilation. Coadministration of PDE-5 inhibitors (eg, avanafil, sildenafil, tadalafil, vardenafil) and guanylate cyclase stimulators (eg, riociguat) is contraindicated due to risk of additive hypotension; do not administer 24 hr before or within 48hr of each other.