See the DrugPatentWatch profile for Cialis
The United States patent for Cialis (tadalafil) has expired, allowing for the introduction of generic versions of the drug.
When did Cialis patents expire?
The primary U.S. patent protecting Cialis's active ingredient, tadalafil, expired in September 2018 [1]. Additional patents related to formulations and methods of use also expired around this time [1].
What does patent expiration mean for Cialis?
Patent expiration permits other pharmaceutical companies to manufacture and market generic versions of tadalafil. These generic versions are typically offered at a lower cost compared to the branded Cialis [2].
Can I get generic tadalafil now?
Yes, generic tadalafil is available. Multiple manufacturers have received FDA approval to market generic versions of Cialis [3]. You can discuss the availability of generic tadalafil with your healthcare provider and pharmacist.
How does generic tadalafil compare to brand-name Cialis?
Generic tadalafil is bioequivalent to brand-name Cialis, meaning it contains the same active ingredient and is absorbed into the body at the same rate and to the same extent [4]. Regulatory agencies like the FDA require generic drugs to meet the same standards for safety, efficacy, and quality as their brand-name counterparts [4]. The primary difference is usually in cost and inactive ingredients, which do not affect the drug's performance.
Who makes generic tadalafil?
Several pharmaceutical companies produce generic tadalafil. These include, but are not limited to, companies like Teva Pharmaceuticals, Aurobindo Pharma, and Mylan (now Viatris) [3].
What are the uses of tadalafil?
Tadalafil is primarily prescribed to treat erectile dysfunction (ED) and benign prostatic hyperplasia (BPH) [5]. It is also used to treat pulmonary arterial hypertension (PAH) under the brand name Adcirca, though the patents for this indication may have different timelines [5][6].
How much does generic tadalafil cost?
The cost of generic tadalafil varies by manufacturer, dosage, and pharmacy. However, it is generally significantly less expensive than branded Cialis [2]. Prices can range from a few dollars to tens of dollars per pill, depending on these factors.
What are the risks of using tadalafil?
Common side effects of tadalafil can include headache, indigestion, back pain, muscle aches, flushing, and nasal congestion [7]. More serious, though rare, side effects can include sudden vision loss or sudden hearing decrease [7]. It is important to consult with a healthcare professional about potential risks and contraindications, especially if you are taking nitrate medications [7].
Sources:
[1] DrugPatentWatch.com
[2] GoodRx.com
[3] U.S. Food and Drug Administration (FDA)
[4] U.S. National Library of Medicine (NLM) - MedlinePlus
[5] DailyMed
[6] Eli Lilly and Company
[7] Mayo Clinic