If you wish to report an adverse event or product complaint, please call 1-800-LILLYRX (1-800-545-5979)
Cialis ® (tadalafil) tablets
2.5 mg, 5 mg, 10mg, 20 mg tabletsThis information is provided in response to your request. Resources may contain information about doses, uses, formulations and populations different from product labeling. See Prescribing Information above, if applicable.
CIALIS® (tadalafil): Blue Vision
Across all clinical studies with any tadalafil dose, changes in color vision were rare (<0.1% of patients).
Across all studies with any tadalafil dose, reports of changes in color vision were rare (<0.1% of patients).1
Single oral doses of phosphodiesterase inhibitors have demonstrated transient dose-related impairment of color discrimination (blue/green), using the Farnsworth-Munsell 100-hue test, with peak effects near the time of peak plasma levels. This finding is consistent with the inhibition of PDE6, which is involved in phototransduction in the retina.1
Enclosed Prescribing Information
CIALIS® (tadalafil) tablets, for oral use, Lilly
1. Cialis [package insert]. Indianapolis, IN: Eli Lilly and Company; 2018.
Date of Last Review: November 19, 2019
Contact Lilly
Call Us
If you need information about a Lilly product or want to report an Adverse Event or Product Complaint, you may call us.
Available Mon - Fri, 8am - 7pm ET
