Tadalafil works for these conditions by promoting muscle relaxation, which improves blood flow in PAH and urinary flow in BPH. These are the drugs that are often cheaper than those in the U. Be aware that the rules the CBP agents follow change often and without notice, so it’s important to contact the CBP for timely information. Apart from treating ED, Cialis is also prescribed for benign prostatic hyperplasia, a condition characterized by an enlarged prostate. You may attempt sexual activity at any time between doses.Cialis (tadalafil) is a popular medication used to treat erectile dysfunction. It’s available in tablets ranging from mg to 20mg. It can cost more than $ for a month’s supply, depending on the dosage you need and the pharmacy you visit. You can save more than 90% on the average retail price at certain pharmacies by using a GoodRx . Avoid or lower your alcohol consumption when taking tadalafil (Cialis). You should never take tadalafil (Cialis) when taking nitrate medication for chest pain (angina) Always let your doctor and pharmacist know about any other medications or supplements (including prescribed and over-the-counter medications, vitamins, and dietary or herbal. For the as-needed dose, plan to take Cialis at least 30 minutes before sexual activity, but bear in mind it may take as long as 2 hours to take effect. Also, Cialis requires sexual stimulation to.