They have the same benefits and risks as their brand-name counterparts. Some platforms have a digital pharmacy that ships the medication to your home, while others send an electronic prescription to your local pharmacy. Share personal information without ensuring the site is secure. More serious side effects may include a drop in blood pressure or an erection that lasts longer than four hours. Contact your medical provider if you experience any side effects during treatment. Medicines that block an enzyme called CYP3A4.How much does tadalafil or cialis cost near you? Find the best tadalafil or cialis prices near you now with our cost comparison tool and start saving today. Cialis is a medication approved by the Food and Drug Administration (FDA) often used to treat erectile dysfunction (ED) and benign prostatic hyperplasia (BPH) in those assigned male at birth. 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.