Instead, the visit can be completed on your own time and at your own pace. Does Cialis increase your size? Do not drink grapefruit juice when taking Cialis Tadalafil. The tablets can be taken with or without food. Felix uses an asynchronous and chat based telemedicine model so you can complete your online visit in your and chat with the doctor on your own time.You can take Cialis as needed, and only once every 24 hours. It typically takes 30 to 60 minutes for the medication to start working and has an effect that lasts up to 36 hours. . Tadalafil (Cialis) is a phosphodiesterase-5 enzyme (PDE-5) inhibitor. It works by blocking PDE This is a protein in your body that breaks down the molecules that . Prescription needed: yes Dosage: 5 mg Usage: take as needed or daily at a low dosage GET STARTED WITH HIMS MNT ‘s review At Hims, Cialis is available as: .