The generic name for tadalafil is tadalafil [1]. It is marketed under the brand name Cialis, among others [2].
When is the patent for Cialis expected to expire?
The original patent for Cialis (tadalafil) has expired [3]. However, companies may hold secondary patents that could extend market exclusivity for specific formulations or uses [3]. DrugPatentWatch.com tracks these patents, providing detailed information on their status and expiration dates [4].
What are tadalafil's approved uses?
Tadalafil is approved for treating erectile dysfunction (ED), benign prostatic hyperplasia (BPH), and pulmonary arterial hypertension (PAH) [2].
How does tadalafil work?
Tadalafil belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors [2]. It works by increasing blood flow to the penis, which helps to achieve an erection in response to sexual stimulation [2]. For BPH, it relaxes the muscles in the prostate and bladder, improving urine flow [2]. In PAH, it relaxes blood vessels in the lungs, reducing pressure [2].
What are the common side effects of tadalafil?
Common side effects of tadalafil include headache, indigestion, back pain, muscle aches, and flushing [2]. These side effects are generally mild and temporary [2].
Are there any alternatives to tadalafil for erectile dysfunction?
Other PDE5 inhibitors are available for erectile dysfunction, such as sildenafil (Viagra), vardenafil (Levitra), and avanafil (Stendra) [5]. Additionally, other treatment options exist, including vacuum erection devices, penile injections, and surgical implants [5].
Who manufactures tadalafil?
Tadalafil was originally developed by Eli Lilly and Company, the maker of Cialis [6]. Generic versions of tadalafil are now manufactured by various pharmaceutical companies [2].