Cialis reaches its maximum effectiveness two hours after you take it. Tell your healthcare provider that you take Cialis. However, it stays in your body for up to 36 hours and can be taken every 24 hours, so it can work for you constantly. For further information contact your pharmacist or Eli Lilly and Company directly. Comparison with actions of other PDE5 inhibitors[ edit ] Sildenafil and vardenafil inhibit PDE6, an enzyme found in the eye, more than tadalafil. CIALIS can cause your blood pressure to drop suddenly to an unsafe level if it is taken with any nitrate medication. In addition, ED is extremely common.Most user-friendly. Hims Cialis. (3+) from Hims. Delivery time: 2–5 business days. Prescription needed: yes. Accepts insurance: no. Dosage: 5 mg. SHOP NOW AT HIMS. Healthline ‘s review. heart attack symptoms – chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating. Common tadalafil side effects may include: headache; flushing (warmth, redness, or tingly feeling); nausea, upset stomach; stuffy nose; or. muscle pain, back pain, pain in your arms, legs, or back. This is not a complete list of side. Tadalafil – STADA T20 – 20 Milligramm. Tadalafil, sold under the brand name Cialis among others, is a medication used to treat erectile dysfunction, benign prostatic hyperplasia, and pulmonary arterial hypertension. [4] [5] [7] It is taken by mouth. [7] Onset is typically within half an hour and the duration is up to 36 hours.