All possible dosages of tadalafil may not be included here. Your doctor will tell you what dosage is right for you. Your dosage, drug form, and how often you take the drug will depend on:
your age
the condition being treated
how severe your condition is
other medical conditions you have
how you react to the first dose
Dosage for benign prostatic hyperplasia (BPH)
Generic: Tadalafil
Form: oral tablet
Strengths: 2.5 mg, 5 mg, 10 mg, and 20 mg
Brand: Cialis
Form: oral tablet
Strengths: 2.5 mg, 5 mg, 10 mg, and 20 mg
Adult dosage (ages 18–64 years)
Typical dosage: One 5-mg tablet per day.
When to take your dose: Take it at about the same time each day. Don’t take tadalafil more than once per day.
When using with other drugs: If you’re taking tadalafil with finasteride (another drug used to treat BPH), your tadalafil dosage will be 5 mg once daily for up to 26 weeks.
Child dosage (ages 0–17 years)
This medication hasn’t been studied in children. It shouldn’t be used in children under age 18 years.
Senior dosage (ages 65 years and older)
Your body processes this drug more slowly. Your doctor may start you on a lowered dosage to keep the drug from building up too much in your body. Too much of the drug in your body can be dangerous.
Dosage for erectile dysfunction (ED)
Generic: Tadalafil
Form: oral tablet
Strengths: 2.5 mg, 5 mg, 10 mg, and 20 mg
Brand: Cialis
Form: oral tablet
Strengths: 2.5 mg, 5 mg, 10 mg, and 20 mg
Adult dosage (ages 18–64 years)
Tadalafil can be used either as needed or taken once a day. Don’t take tadalafil more than once per day.
For as-needed use:
Typical starting dosage: 10 mg.
Dosage increases: Your doctor may increase your dose to 20 mg or decrease it to 5 mg. This depends on how tadalafil is working for you and how well your body reacts to it.
When to take your dose: Take one tadalafil tablet before you expect to have sexual activity. You may have sexual activity 30 minutes after taking tadalafil and up to 36 hours afterward.
For once-daily use:
Typical starting dosage: 2.5 mg per day.
Dosage increases: Your doctor may increase your dose to 5 mg per day, depending on how well tadalafil is working for you and how well your body reacts to it.
When to take your dose: Take one tadalafil tablet every day. Take it at about the same time each day. You may try to have sexual activity at any time between doses.
Child dosage (ages 0–17 years)
This medication hasn’t been studied in children. It shouldn’t be used in children under age 18 years.
Senior dosage (ages 65 years and older)
Your body processes this drug more slowly. Your doctor may start you on a lowered dosage to keep the drug from building up too much in your body. Too much of the drug in your body can be dangerous.
