Both can kick in with their effects as soon as one hour, although some individuals might feel their effects work faster (or slower) than others.\u00a0<\/span><\/p>\n Both sildenafil and tadalafil cause identical side effects, such as gastrointestinal discomfort, nasal congestion, headaches, diarrhea, and fluctuations in blood pressure.<\/span><\/p>\n Individuals with ED looking for medical treatment might feel overwhelmed with the variety of options out there, especially when their doctor prescribes an ED medication.<\/span><\/p>\n That said, you might have been wondering what differences exist between sildenafil and tadalafil – or their branded counterparts, Viagra\u00ae and Cialis\u00ae – as commonly prescribed and well-regarded treatments for ED.<\/span><\/p>\n In this article, let\u2019s dive deep into sildenafil and tadalafil and examine their similarities and differences.<\/span><\/p>\n <\/p>\n <\/p>\n Sildenafil is a medicine used to treat erectile dysfunction.\u00a0<\/span><\/p>\n It relaxes penile smooth muscles when sexual stimulation is introduced or when there is a state of sexual arousal.\u00a0<\/span><\/p>\n This action allows blood to flow into the penile tissue more easily to cause harder, longer-lasting erections in men with erection difficulties, or worse, the total inability to produce one.\u00a0<\/span><\/p>\n Pharmaceutical giant Pfizer first introduced sildenafil to the masses as the pre-eminent solution to erectile dysfunction in 1998 under the brand name Viagra\u00ae, owning the patent and, therefore, the rights to being the sole legal distributor of sildenafil.\u00a0<\/span><\/p>\n Upon the patent\u2019s expiry in 2013, other pharmaceutical companies were allowed to manufacture a generic, unbranded version of Viagra\u00ae mandated by the United States Food and Drug Administration (FDA) to be chemically equivalent to Pfizer\u2019s product \u2013 at more accessible prices.<\/span><\/p>\n <\/p>\n\t Connect with a US-licensed healthcare provider for a FREE evaluation!<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n Free Express Discreet No Waiting Pfizer invested large sums of money developing Viagra\u00ae, including paid clinical trials and global marketing campaigns. This massive investment in the product is what makes Viagra\u00ae more expensive than generic sildenafil.<\/span><\/p>\n Other pharmaceutical firms no longer have to pay for marketing and research and already have the active ingredient (sildenafil) since the heavy lifting in that regard has already been done by Pfizer beforehand \u2013 making generic sildenafil much cheaper, despite being chemically the same and equally as effective as the other.<\/span><\/p>\n <\/p>\n Tadalafil, like its PDE5 inhibitor kin sildenafil, is a drug used to treat ED. Like all other PDE5 inhibitors, tadalafil relaxes the smooth muscles in the penis allowing blood to enter the penis, which results in an erection upon stimulation or arousal.<\/span><\/p>\n Pharmaceutical company Ely Lilly and Co first marketed tadalafil in 2003 under the brand name Cialis\u00ae. Like Pfizer, when Eli Lilly\u2019s patent on tadalafil expired in 2017, it opened the door for other pharmaceutical distributors to manufacture generic, bioequivalent versions of Cialis\u00ae with no difference in efficacy.<\/span><\/p>\n <\/p>\n No question about this – tadalafil\u2019s effects last longer than sildenafil. Sildenafil\u2019s effects last for up to 4-6 hours, while tadalafil may last for as long as 36 hours.<\/span><\/p>\n Does that mean you will have a constantly firm erection for 36 hours straight? No.<\/span><\/p>\n All it means is that you can produce an erection when sexually stimulated for the period the drug is active. Tadalafil is best suited for men who engage in sexual activity more than twice a week.<\/span><\/p>\n <\/p>\n Tadalafil kicks in faster than sildenafil by approximately 10 to 15 minutes on average, whereas sildenafil usually works around 30 minutes to an hour after taking it. However, this time frame may vary depending on the individual and their specific response to either ED medicine. Both sildenafil and tadalafil work best when taken on an empty stomach since taking either right after a meal will likely extend the time it takes for both to kick in.<\/span><\/p>\n <\/p>\n Tadalafil and sildenafil possess the same profile of side effects; however, tadalafil\u2019s side effects may last longer due to its longer duration of action (36 hours). Common side effects of both ED medications include flushing, headaches, nasal congestion, and changes in blood pressure.<\/span><\/p>\n <\/p>\n Both sildenafil and tadalafil possess similar success rates (~80%) based on verifiable clinical trials. Some men, however, may prefer one over the other. For instance, a Chinese study showed that more men and their partners prefer tadalafil due to its longer effects, allowing for greater sexual spontaneity.<\/span><\/p>\n <\/p>\n\t Connect with a US-licensed healthcare provider for a FREE evaluation!<\/p>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n What is sildenafil (brand name Viagra\u00ae)?<\/b><\/h2>\n
Getting ED medication has never been easier<\/h4>\n\t\t\t\t\t
limited time*<\/h6>\n\t\t <\/div>\n
![](\"https:\/\/ultrapharmrx.com\/blog\/wp-content\/uploads\/2025\/05\/Blog-Image2.png\")
\n\t <\/div>\n ![\"\"](\"\/images\/home\/shipping%20copy%202.png\")
\n
\n Shipping<\/p>\n <\/div>\n ![\"\"](\"\/images\/home\/discreet.png\")
\n
\n Shipping<\/p>\n <\/div>\n ![\"\"](\"\/images\/home\/banned.png\")
\n
\n Rooms<\/p>\n <\/div>\n <\/div>\n\t <\/div>\n\t\t<\/div>\n\t<\/div>\n\t\nWhy is generic sildenafil cheaper than Viagra\u00ae?<\/b><\/h2>\n
What is tadalafil (brand name Cialis\u00ae)?<\/b><\/h2>\n
Which lasts longer? Sildenafil or tadalafil?<\/b><\/h2>\n
Which one kicks in faster? Sildenafil or tadalafil?<\/b><\/h2>\n
Which one produces the least amount of side effects? Sildenafil or tadalafil?<\/b><\/h2>\n
Which medication between sildenafil and tadalafil has a higher rate of success?<\/b><\/h2>\n
Getting ED medication has never been easier<\/h4>\n\t\t\t\t\t
![](\"https:\/\/ultrapharmrx.com\/blog\/wp-content\/uploads\/2022\/06\/Blog-Image2.png\")
\n\t <\/div>\n