If you've been prescribed ED medication, you've likely heard of sildenafil and tadalafil — the active ingredients in Viagra and Cialis, respectively. Both are PDE5 inhibitors that work by increasing blood flow, but they differ in important ways that affect how you use them.
Both medications block the PDE5 enzyme, which allows the smooth muscle in blood vessels to relax and blood flow to increase. The difference is in timing and duration.
Sildenafil typically takes 30-60 minutes to start working and lasts 4-6 hours. It works best on an empty stomach, as fatty foods can delay absorption. Most men start with a 50mg dose, which can be adjusted based on effectiveness and side effects.
Tadalafil can take 30 minutes to 2 hours to take effect but lasts up to 36 hours — earning it the nickname "the weekend pill." It's less affected by food. Tadalafil is also available as a daily low-dose option (2.5-5mg), which means you don't have to plan around taking a pill.
If you prefer spontaneity, daily tadalafil lets you be ready anytime. If you only need occasional use, as-needed sildenafil is cost-effective. Your physician can help determine the best option based on your health history, other medications, and lifestyle preferences.
Both medications are available as affordable generics. At TheMensRX, we prescribe both and your physician will recommend what makes the most sense for you — not what has the biggest marketing budget.
Related: Cialis Daily vs As-Needed · ED Causes and Treatments · ED Treatment
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