Cialis and alcohol: what to know
Cialis · tadalafil · by Eli Lilly
Reviewed by the WeighedHealth Editorial Team against primary clinical sources — FDA labeling, peer-reviewed trials, and specialty-society guidelines.
Content current as of July 2026; updated when guidance or availability changes.
Tadalafil's long half-life (~17 hours) means alcohol-drug interaction window is longer than with sildenafil. Moderate alcohol (1-2 drinks) is generally compatible. Heavy drinking amplifies dizziness and hypotension risk. The 36-hour window of effect means you may have tadalafil in your system longer than expected — plan alcohol accordingly.
Where to get Cialis
Hims
from $13/mo- Best for cash-pay
- Best for speed
Hims ED — generic sildenafil from $13/mo
Ro
from $2/mo- Best for clinical oversight
Ro — original online ED brand, sildenafil & tadalafil
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- How does Cialis work?
- Who qualifies for Cialis?
- Cialis drug interactions
- Cialis and pregnancy: safety, planning, breastfeeding
- Cialis missed dose: what to do
- Cialis savings: coupons, manufacturer programs, lower-cost options
- ← Full Cialis overview
People also ask
Frequently asked
Can I drink alcohol on Cialis?+
Tadalafil's long half-life (~17 hours) means alcohol-drug interaction window is longer than with sildenafil. Moderate alcohol (1-2 drinks) is generally compatible. Heavy drinking amplifies dizziness and hypotension risk. The 36-hour window of effect means you may have tadalafil in your system longer than expected — plan alcohol accordingly.
Does Cialis affect alcohol tolerance?+
Some patients report reduced tolerance and unusually severe hangovers, likely from slowed gastric emptying changing alcohol absorption.