1 Bright yellow or orange urine can indicate youâve consumed a lot of vitamin C, carrots, beets, or other foods in the orange family. 2  Some medications can turn your urine this color as well. 3  Dark orange or brown urine is cause for concern.
Cialis and Alcohol. The manufacturer of Cialis (tadalafil) recommends that people taking this medication should not consume large amounts of alcohol. Although drinking small amounts of alcohol will not likely lead to any serious problems, mixing large amounts of alcohol with this medication can cause possible drug interactions.
Alcoholâs Effects on Vitamin A Levels. Numerous studies have assessed the effects of alcohol consumption on vitamin A and betaâcarotene levels in the liver and blood. In the liver, both heavy alcohol consumption and use of other drugs can lead to reduced vitamin A levels. These drugs enhance the activity of the liver enzymes that break down vitamin A and similar molecules (Leo et al. 1987; Leo and Lieber 1999).