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2. How to Pay the Lowest Price for Cialis & Tadalafil - AOL

   www.aol.com/lifestyle/pay-lowest-price-cialis...

   The price of generic tadalafil can vary based on the dosage, but most versions of generic tadalafil cost $10 to $13 per tablet. When used daily, generic tadalafil can be less than $3 per pill ($79 ...

3. Tadalafil: Your Ultimate Guide to Dosages, Side Effects & More

   www.aol.com/tadalafil-ultimate-guide-dosages...

   Tadalafil is available in several dosages, from a minimum dosage of 2.5mg (milligrams) all the way up to a 20mg per tablet, the maximum dose of tadalafil in 24 hours. Tadalafil 10mg: Typical ...

4. Cialis Side Effects: What to Expect (& How to Avoid Them) - AOL

   www.aol.com/cialis-side-effects-expect-avoid...

   Remember, tadalafil 5-milligram side effects tend to be less severe than those experienced with 10- or 20-milligram dosages. Your provider may recommend adjusting your Cialis dosage if you’re ...

5. Tadalafil - Wikipedia

   en.wikipedia.org/wiki/Tadalafil

   Tadalafil is an annulated 2,5-diketopiperazine. [25] It is also a 1,2,3,4-tetrahydro-β-carboline. Tadalafil can be synthesized starting from (D)-tryptophan methyl ester and piperonal via a Pictet–Spengler reaction. This is followed by condensations with chloroacetyl chloride and methylamine to complete the diketopiperazine ring: [26]

6. Eli Lilly and Company - Wikipedia

   en.wikipedia.org/wiki/Eli_Lilly_and_Company

   In 2003, Eli Lilly and Company introduced Cialis (tadalafil), a competitor to Pfizer's blockbuster Viagra for erectile dysfunction. Cialis maintains an active period of 36 hours, causing it sometimes to be dubbed the "weekend pill". Cialis was developed in a partnership with biotechnology company Icos Corporation. In December 2006, Lilly bought ...

7. Discovery and development of phosphodiesterase 5 inhibitors

   en.wikipedia.org/wiki/Discovery_and_development...

   The major PDE5 inhibitors (a subset of the phosphodiesterase inhibitors) are sildenafil, tadalafil, vardenafil, and avanafil, and although all share the same mechanism of action each has unique pharmacokinetic and pharmacodynamic properties which dictate their suitability in various conditions and their side effect profile.

8. Your ED Pill Guide: Everything You Need to Know Before ... - AOL

   www.aol.com/ed-pill-guide-everything-know...

   Tadalafil. The active ingredient in Cialis, tadalafil is a long-lasting medication that can provide relief from ED for up to 36 hours. Vardenafil. The active ingredient in Levitra, vardenafil can ...

9. PDE5 inhibitor - Wikipedia

   en.wikipedia.org/wiki/PDE5_inhibitor

   PDE5 inhibitors are contraindicated within 24 hours (or 48 hours with tadalafil) of taking alpha-blockers, soluble guanylate cyclase stimulators, or nitrate medications such as isosorbide mononitrate or isosorbide dinitrate. [1] Concurrent use of these medications can lead to life-threatening low blood pressure. [5]