Megalis 20 mg, which contains Tadalafil as its active ingredient, can interact with grapefruit and certain foods in the following ways:

Grapefruit Interaction:

Grapefruit and grapefruit juice can inhibit the enzyme CYP3A4 in the liver, which is responsible for metabolizing Tadalafil. This can lead to increased levels of the drug in the bloodstream, potentially enhancing its effects and increasing the risk of side effects such as headaches, dizziness, and low blood pressure.

Food Interactions:

High-Fat Meals: Taking Megalis 20mg with a high-fat meal can delay the onset of action. Although it doesn’t prevent the drug from working, it may take longer for you to notice the effects.

Alcohol: Consuming large amounts of alcohol while taking Tadalafil can also increase the risk of side effects like dizziness and lowered blood pressure.