Head-to-head comparisons of medication uses, side effects, warnings, and more.
Key takeaways
Tamsulosin (Flomax) and tadalafil (Cialis) are both used to treat benign prostatic hyperplasia (BPH), but they work differently and have other uses as well. Tamsulosin is an alpha-1 blocker that relaxes muscles in the prostate and bladder to improve urination. It is taken once daily, 30 minutes after the same meal. Tadalafil, on the other hand, is a PDE-5 inhibitor that not only treats BPH but also erectile dysfunction (ED). It can be taken either as needed before sexual activity or once daily. Tadalafil can be taken with or without food, while tamsulosin must be taken after a meal. Both medications are available as lower-cost generics. Both medications can cause dizziness and have interactions with other drugs, but tadalafil has additional risks like vision changes and hearing loss.
Tamsulosin (Flomax) is a commonly prescribed oral medication used to treat benign prostatic hyperplasia (BPH), also known as an enlarged prostate. For it to work properly, you have to take it 30 minutes after the same meal each day. Also, since tamsulosin (Flomax) has a lot of interactions, you'll need to check with your healthcare provider or pharmacist before you start any new medications.
Tadalafil (Cialis) is taken by mouth either as needed before sexual activity or once daily for erectile dysfunction (ED). It's also taken once daily to treat symptoms from an enlarged prostate (benign prostatic hyperplasia, or BPH). Tadalafil (Cialis) is available both as brand-name and generic tablets. Common side effects of this medication include headache and indigestion. Tadalafil (Cialis) does interact with some medications, such as heart and blood pressure medications, and taking them together could lead to very low blood pressure and dizziness.
Once-daily use of tadalafil (Cialis) (for ED or BPH):
As-needed use of tadalafil (Cialis) (for ED):
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