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Tadalafil Dosage

Medically reviewed by Drugs.com. Last updated on Dec 11, 2023.

Applies to the following strengths: 5 mg; 10 mg; 20 mg; 2.5 mg; 20 mg/5 mL

Usual Adult Dose for Erectile Dysfunction

Use as needed for ED:


Comment: Consider that this drug has shown to improve erectile dysfunction up to 36 hours following dosing, when used as needed.

Once a day use for ED:

Once daily use for ED and Benign Prostatic Hyperplasia (BPH):

Use: Treatment of erectile dysfunction (ED)

Usual Adult Dose for Pulmonary Hypertension

Adcirca (R):


Comment: Dividing the 40 mg dose over the course of the day is not recommended.

Usual Adult Dose for Benign Prostatic Hyperplasia

Once daily use for BPH:


Concomitant administration with finasteride:

Comments: The incremental benefit of this drug decreases from 4 weeks until 26 weeks. The incremental benefit of this drug beyond 26 weeks is unknown.

Once daily use for ED and BPH:

Use: Treatment of the signs and symptoms of benign prostatic hyperplasia (BPH)

Renal Dose Adjustments

Use as needed for ED:


Once a day use for ED:

Once a day use for BPH:

Pulmonary Arterial Hypertension:
Adcirca (R):

Liver Dose Adjustments

Use as needed for ED:


Once a day use for ED:

Pulmonary Arterial Hypertension:
Adcirca (R):

Dose Adjustments

Concomitant administration with alpha blockers:


Concomitant administration with CYP450 3A4 inhibitors (ketoconazole, ritonavir):

Pulmonary Arterial Hypertension:
Adcirca (R):

Coadministration of Adcirca (R) in patients on ritonavir:

Coadministration of ritonavir in patients on Adcirca (R):

Precautions

Safety and efficacy have not been established in patients younger than 18 years.

Consult WARNINGS section for additional precautions.

Dialysis

Data not available

Other Comments

Administration advice:


General:

Monitoring:

Patient advice:

Frequently asked questions

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.