Tadalafil can be synthesized starting from D – tryptophan methyl ester and piperonal via a Pictet—Spengler reaction. You should take tadalafil one time a day. Try the following tips the next time you experience a headache after using Viagra or other ED medication: Rest in a quiet, dark room. Cialis helps you get and keep stronger erections with a daily or as-needed pill. Also tell your doctor if you or any of your family members have or have ever had an eye disease such as retinitis pigmentosa an inherited eye condition that causes loss of vision or if you have ever had sudden severe vision loss, especially if you were told that the vision loss was caused by a blockage of blood flow to the nerves that help you see. For severe headaches, contact your healthcare provider. Therefore the use of such treatments in combination with Cialis is not recommended.Dosage range: mg to 5 mg. Frequency: once daily, regardless of the timing of sexual activity. Cialis’s recommended dosage when it’s taken as needed for ED is as follows. Dosage range: 5 mg to 20 mg. Frequency: one dose at least 30 minutes before sexual activity, with a maximum of one dose per day*. MNT ‘s review. Lemonaid sells Cialis in these forms: Cialis: available in doses of 5, 10, and 20 mg, starting at $65 per tablet. Daily Cialis: 5 mg tablet with pricing starting from $50 per tablet. Thinking about asking the doc to try this along with my pelvic PT, you know, multimodal therapy (to try and address the pelvic floor issues for the long term but also make life .