Generic Cialis (Tadalafil) is a medication prescribed for the treatment of erectile dysfunction in men. Because the medication helps to increase blood flow, it also can be effective reducing symptoms associated with pulmonary artery hypertension including reducing dizziness, shortness of breath and tiredness. While Cialis offers benefits to those taking it, it is important to be aware of foods that could cause adverse reactions when taking it.

Grapefruit
Studies have suggested that when considering food and cialis, it is best to avoid eating grapefruit or drinking grapefruit juice while using this Cialis unless your doctor or pharmacist says you may do so safely. Grapefruit may increase the chance of side effects with this medicine. This is because grapefruit interferes with an enzyme that is responsible for breaking down your medication. Without the enzyme, Cialis remains in the body longer than intended. This increases the medication’s absorption, which can have toxic effects on the body.

Alcohol
Drinking alcohol while taking Cialis can lead to adverse side effects. Cialis is a blood vessels dilator as is alcohol. When you take Cialis and drink alcohol, your blood vessels can open enough to significantly decrease your blood pressure. This may depend upon the amount of alcohol you are consuming — alcohol in a moderate amount of about one drink may not interfere with Cialis. Talk to your physician about taking precautions best for your overall health. If you do drink alcohol and observe signs like faster heart rate, dizziness and headache, discontinue alcohol use and see your physician if your symptoms worsen.

Warning
While alcohol and grapefruit are two examples of food interactions with Cialis, they are not the only substances that can interact negatively with the medication. There are over 200 potential drug interactions with Cialis, meaning it is important to talk with your physician about all vitamins, supplements and herbal medications you may be taking. Examples of medication interactions include taking Cialis with erythromycin, ketoconazole, nitrates, rifampin and doxazosin.