Cialis (tadalafil) is a medication that’s commonly used to treat ED. It’s part of a medication class called phosphodiesterase type 5 (PDE5) inhibitors. If you have ED, you may have been prescribed a medication like Cialis (tadalafil) to help, and you may be asking yourself if it’s OK to drink alcohol while taking it. Oddway International is known for its commitment to providing high-quality pharmaceutical products. Customers can trust that the Cialis they purchase from Oddway International meets stringent quality standards.