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Probe · tadalafil · 3 min read

Can Cialis 10 mg be taken more than once a day?

No. As-needed tadalafil 10 mg is one tablet in 24 hours for most men. Two 10 mg swallows inside that window are two doses. The 48-hour cap is a kidney row. The 72-hour cap is a severe-renal or ketoconazole-ritonavir row. A working Sunday tail is leftover exposure, not a second swallow.

Medically reviewed by Dr. Mateo Ruiz, MD - Clinical pharmacology, Barcelona

Last reviewed

Updated

01When is the spacing 48 hours?

Forest-green still life: one tablet in a 24-hour ring drawn in mint dust

Creatinine clearance 30 to 50 mL/min caps as-needed 10 mg at not more than once every 48 hours after a 5 mg start. That is a kidney row, not a healthy weekend lockout. See the CrCl line.

Do not invent a 48-hour rule because Sunday 'should be clear' after Friday 10 mg with normal kidneys.

02When is the spacing 72 hours?

Creatinine clearance under 30 mL/min or hemodialysis caps as-needed use at 5 mg every 72 hours. Ketoconazole or ritonavir caps as-needed use at 10 mg every 72 hours. Those are labelled ceilings.

A thirty-count of 10 mg is a pack size, not permission to swallow one every night on those rows.

03Are Friday and Saturday 10 mg two doses?

Friday night and Saturday night are two calendar days if 24 hours have passed. Two swallows inside 24 hours are two as-needed doses. The label does not want that pair for most men.

If Friday 10 mg underwhelmed, the next planned dose can step to 20 mg once after a prescriber reviews side effects. That is still one tablet that day.

04Can I add daily 2.5 mg on top of weekend 10 mg?

Daily 2.5 or 5 mg plus weekend 10 mg is two tadalafil regimens stacked. The label does not ask for that pair. Pick the bottle the writer named.

Splitting the 10 mg film coat to 'save' a daily tablet is still two stories taped together. Tablets are not scored.

05If Sunday still works, is that a second tablet?

Sunday still working after Friday 10 mg is leftover half-life. Mean terminal half-life is 17.5 hours. That tail is not a new dose.

Do not add another PDE5 as Sunday backup. The weekend pulse covers the duration story without a second swallow.

06What frequency does the as-needed label use for most men?

One as-needed dose per day is the usual frequency. That applies at 10 mg and at 20 mg. The long tail does not earn a booster tablet.

Daily 2.5 mg or 5 mg is a different bottle taken every day on purpose. That is not a second PRN. See daily versus 10 mg PRN.

Sources

  1. DailyMed CIALIS (tadalafil) Dosage and Administration: maximum recommended dosing frequency once per day in most patients; renal and CYP spacing rows

Checked against the current label and reviewed by Dr. Mateo Ruiz. See Probe, Assay, Glow-check, Seal.

Vault consult

Answers follow the U.S. Cialis label.

Xavier B. Friday 10 mg and Saturday 10 mg - allowed?

Vault reply

If 24 hours have passed, those are two as-needed days. Two swallows inside 24 hours are two doses. Usual frequency is one a day.

Ines C. My kidneys are fine. Do I still wait 48 hours?

Vault reply

The 48-hour cap is a CrCl 30 to 50 mL/min row. Normal kidneys stay on once per day as needed.

Malik T. Can I take 5 mg daily and 10 mg on Friday?

Vault reply

That stacks two regimens. The writer names one bottle. Daily 5 mg is not a booster on top of 10 mg PRN.

Before you start, stop, or change any medicine, speak with your prescriber or pharmacist - they hold your chart, this vault card does not. Open the vault disclaimer.