What is tadalafil?
Tadalafil relaxes muscles of the blood vessels and increases blood flow to particular areas of the body.
Tadalafil under the name of Cialis is used to treat erectile dysfunction (impotence)and symptoms of benign prostatic hypertrophy (enlarged prostate). Another brand of tadalafil is Adcirca, which is used to treat pulmonary arterial hypertension and improve exercise capacity in men and women.
What happens if I miss a dose?
If tadalafil is used as needed, you are not likely to be on a dosing schedule.
If you take tadalafil 20mg pills every day and you miss a dose, take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
Tadalafil side effects
Get emergency medical help if you have
signs of an allergic reaction to tadalafil:hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Stop and get medical help at once if you have nausea, chest pain, or dizziness during sex. You could be having a life-threatening side effect.Stop using tadalafil 20 mg and call your doctor at once if you have:
- a light-headed feeling, like you might pass out;
- an erection is painful or lasts longer than 4 hours (prolonged erection can damage the penis);
- vision changes or sudden vision loss;
- ringing in your ears or sudden hearing loss; or
- heart attack symptoms – chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating.
Common tadalafil side effects may include:
- flushing (warmth, redness, or tingly feeling);
- nausea, upset stomach;
- stuffy nose; or
- muscle pain, back pain, pain in your arms or legs.
This tadalafil 20mg tab is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Tadalafil dosing information
Usual Adult Dose for Erectile Dysfunction:
Use as needed for ED:
-Initial dose: 10 mg orally once a day, as needed, prior to sexual activity
-Maintenance dose: 5 to 20 mg orally once a day, as needed, prior to sexual activity based on individual efficacy and tolerability
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:
-Initial dose: 2.5 mg orally once a day at approximately the same time, without regard to timing of sexual activity
-Maintenance dose: 2.5 to 5 mg orally once a day based on individual efficacy and tolerability.
Once daily use for ED and Benign Prostatic Hyperplasia (BPH):
-5 mg orally once a day at approximately the same time, without regard to timing of sexual activity
Use: Treatment of erectile dysfunction (ED)
Usual Adult Dose for Pulmonary Hypertension:
-40 mg orally once a day
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:
-5 mg orally once a day at approximately the same time
Concomitant administration with finasteride:
-5 mg orally once a day at approximately the same time, for up to 26 weeks
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:
– tadalafil actavis 20 mg 5 mg orally once a day at approximately the same time, without regard to timing of sexual activity