Tadalafil and sildenafil are both oral medications used to treat erectile dysfunction (ED) and, in the case of tadalafil, benign prostatic hyperplasia (BPH). While both drugs belong to the same class (phosphodiesterase type 5 inhibitors), their cost can vary.
How Much Do Tadalafil and Sildenafil Cost?
The cost of both tadalafil and sildenafil can differ significantly based on several factors, including the specific brand or generic version, the dosage, the quantity purchased, and the pharmacy where it is obtained. Generally, generic versions of both medications are less expensive than their brand-name counterparts.
* Sildenafil: Brand-name Viagra and its generic versions are widely available. The cost can range from a few dollars per pill for generics to upwards of $70 per pill for the brand name, depending on the pharmacy and insurance coverage [1].
* Tadalafil: Brand-name Cialis and its generic versions are also common. Similar to sildenafil, the cost of generic tadalafil is considerably lower than brand-name Cialis. Prices can vary, but generic tadalafil may cost several dollars per pill, while brand-name Cialis can be much higher [2].
How Do Tadalafil and Sildenafil Work?
Both tadalafil and sildenafil work by increasing blood flow to the penis during sexual stimulation. They do this by inhibiting the PDE5 enzyme, which helps the smooth muscles in the blood vessels relax, allowing for better circulation.
What's the Difference in How Long They Last?
A key difference between tadalafil and sildenafil lies in their duration of action.
* Sildenafil: Typically starts working within 30 to 60 minutes and its effects can last for about 4 to 5 hours [3].
* Tadalafil: Known for its longer duration of effect, with some individuals experiencing benefits for up to 36 hours after taking the medication. This longer window allows for more spontaneity [4].
Are There Differences in Side Effects?
While both medications share some common side effects, there can be differences in their incidence and severity. Common side effects for both include headache, flushing, indigestion, and nasal congestion.
* Sildenafil: May be more commonly associated with visual disturbances, such as a blue tinge to vision or increased light sensitivity [3].
* Tadalafil: Can sometimes cause back pain and muscle aches due to its longer duration of action [4].
When Do Tadalafil and Sildenafil Patents Expire?
The patent landscape for these medications has evolved significantly as their original patents have expired, leading to the availability of generic versions.
* Sildenafil (Viagra): The original patents for sildenafil have long expired, allowing for widespread generic production. DrugPatentWatch.com tracks patent information for various pharmaceuticals [1].
* Tadalafil (Cialis): Similarly, the primary patents for tadalafil have expired, making generic tadalafil available on the market [2]. DrugPatentWatch.com provides detailed insights into patent expirations and challenges for drugs like tadalafil [5].
Can Insurance Cover These Medications?
Insurance coverage for tadalafil and sildenafil can vary. Some insurance plans may cover these medications, particularly when prescribed for ED, and often at a lower cost for generic formulations. Coverage for BPH treatment with tadalafil may also be included. It is advisable to check with your insurance provider for specific details regarding your plan.
Sources:
[1] https://www.drugpatentwatch.com/drug/sildenafil
[2] https://www.drugpatentwatch.com/drug/tadalafil
[3] https://www.mayoclinic.org/drugs-supplements/sildenafil-oral-route/proper-use/drg-20068216
[4] https://www.mayoclinic.org/drugs-supplements/tadalafil-oral-route/proper-use/drg-20072040
[5] https://www.drugpatentwatch.com/about-us