Cialis 20mg film-coated tablets containing the active ingredient tadalafil are used to treat erectile dysfunction (ED) in men. They are available in various strengths, including 20mg tablets.To treat ED, Cialis can be taken as needed, usually at least 30 minutes before sexual activity. The effect on sexual ability may last up to 36 hours. Alternatively, it can be taken regularly, once a day every day, in which case sexual activity can be attempted at any time between doses. Cialis contains the active ingredient tadalafil, which belongs to a class of medications called phosphodiesterase type 5 (PDE5) inhibitors. It works by helping to relax the blood vessels in the penis, allowing increased blood flow, which helps achieve and maintain an erection during sexual stimulation. The recommended dose of Cialis 20mg is one tablet taken with water, as needed, usually at least 30 minutes before sexual activity. The effect on sexual ability may last up to 36 hours. Alternatively, it can be taken regularly, once a day every day, in which case sexual activity can be attempted at any time between doses. Cialis 20mg film-coated tablets are available in Pakistan, including cities like Lahore, Sialkot, Peshawar, and Karachi. A pack of 4 tablets made in Turkey can be purchased for Rs. 3,900. Do not exceed the recommended dosage, as overdoses of any health supplements may cause health concerns. Always consult with a healthcare professional before starting any new medication or treatment for erectile dysfunction. Cialis can cause a serious drop in blood pressure when used with nitrates (e.g. nitroglycerin, isosorbide) or recreational drugs called “poppers” containing nitrites. This can lead to dizziness, fainting, and in rare cases, heart attack or stroke. Cialis should not be used with these medications. Cialis may interact with alpha blocker medications used to treat an enlarged prostate or high blood pressure (e.g. doxazosin, tamsulosin). This can lead to low blood pressure and dizziness/fainting. The dosage of Cialis or the alpha blocker may need to be adjusted. Cialis may interact with other medications that can affect how it is metabolized and removed from the body, such as certain antifungals, antibiotics, and HIV medications. This can impact the effectiveness of Cialis. Cialis should not be taken with any other PDE5 inhibitors used to treat erectile dysfunction or pulmonary hypertension, as this could lead to an overdose.