If you are taking tadalafil to treat erectile dysfunction, follow your doctor’s directions and the guidelines in this paragraph. Itraconazole: Major Avoid use of tadalafil for the treatment of pulmonary hypertension during and for 2 weeks after discontinuation of itraconazole treatment. Keep out of the reach of children. Yes, after an online consultation with one of our doctors or nurse practitioners, you can get the pills mailed to you from the Lemonaid Pharmacy in discreet plain packaging with FREE fast delivery. ED occurs more frequently in older men. Amiodarone: Moderate Monitor for an increase in tadalafil-related adverse reactions if coadministration with amiodarone is necessary. Caution and close monitoring are advised if these drugs are used together.Cialis and generic tadalafil are available with a prescription only. There is no OTC version, though there have been efforts in recent years to develop a . Talk to your doctor about which dosing schedule is right for you. Tadalafil is sometimes taken as needed, usually at least 30 minutes before sexual activity and not more often . Tadalafil (Cialis). This medication is taken with or without food an hour before sex. It works for up to 36 hours. You can take it in a small dose daily or in a larger .