While taking Tadasoft 20 mg (which contains Tadalafil), there are several things you should avoid to ensure your safety and to maximize the effectiveness of the medication. Here's a list of key things to avoid:

Nitrate Medications: Avoid using Tadasoft with nitrates (such as nitroglycerin, isosorbide dinitrate, or amyl nitrate), which are commonly prescribed for chest pain or heart conditions. This combination can cause a significant and dangerous drop in blood pressure.

Alcohol: While moderate alcohol consumption might not cause major issues, excessive alcohol intake can increase the likelihood of side effects such as dizziness, headaches, or a drop in blood pressure. It can also reduce the effectiveness of Tadasoft20mg in treating erectile dysfunction.

Grapefruit and Grapefruit Juice: Grapefruit can interact with Tadalafil, leading to higher levels of the medication in your bloodstream. This increases the risk of experiencing side effects like headaches, dizziness, or low blood pressure.

Other Erectile Dysfunction Medications: Avoid taking other PDE5 inhibitors (like Sildenafil or Vardenafil) along with Tadasoft, as combining them can increase the risk of side effects, including low blood pressure, headaches, and dizziness.

Alpha-blockers: If you're on medications for prostate issues or high blood pressure (such as doxazosin, tamsulosin), you should use Tadasoft cautiously. The combination can cause a significant drop in blood pressure, leading to dizziness, fainting, or a fast heart rate.

Uncontrolled Hypertension or Heart Conditions: If you have severe heart conditions, especially those involving low blood pressure, irregular heart rhythms, or heart failure, consult your doctor before using Tadasoft. It could worsen these conditions.

Other Medications That Affect Blood Pressure: Certain medications for hypertension (like beta-blockers or diuretics) or even those used for HIV/AIDS treatment can interact with Tadasoft, potentially lowering your blood pressure too much.

High-fat Meals: While not a strict "avoidance," high-fat meals may delay the onset of Tadasoft’s effects. It's usually better to take it on an empty stomach or after a light meal.

Always consult your doctor about any medications you’re taking or changes to your routine to avoid adverse interactions or side effects while using Tadasoft.