Cialis was the third ED prescription drug approved by FDA after the pharmaceutical market has experienced triumphs of sildenafil (Viagra) and vardenafil (Levitra). 11 years ago, men did not even have a choice. This drug has entered the market only in late 2003 but has achieved success in fast-paced years.
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More about Cialis
Although the mechanism of tadalafil is identical to Viagra and Levitra (it functions by inhibiting PDE5 as well), there is one very important difference that makes this drug stand out among its competitors. Cialis has a significantly greater long-lasting effect exactly 17.5 hours. This means that you can take it before in the evening and be completely ready for everything that happens at night, and a large part of the day to come. This outstanding duration that Cialis has given him nickname “weekend pill” – the majority of people who take it claim that its effect does not disappear for two consecutive days. If you take the pill on a Friday night, you can still be ready on Sunday, which sounds like a good perspective indeed.
Compared to Viagra, Cialis seems to be a much safer option as it has been reported to cause fewer side effects. The list severe of which may include:
- a headache;
- abdominal pain;
- belching;
- nasal congestion;
- flushing;
- stomach ache;
- muscle and back pain.
The only serious side effect of tadalafil, FDA warns potential users, is a blurred vision or sudden hearing loss.
Yellow almond-shaped film-coated tablets – Cialis are easily distinguished from Viagra (blue diamond-shaped tablets) and Levitra (orange round tablets). Strong brand-name medication is available in 2.5 mg, 5 mg, 10 mg and 20 mg. In most cases, you will be recommended to start from 10 mg to adjust further the dosage based on body’s response to treatment.
Levitra: General Description
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Soon after Viagra introduction in 1998, the major pharmaceutical companies have started to work at drugs’ creation, which would be similar to Viagra, but did not violate any patent rights. The substance is called vardenafil and was developed as a result of such researches – and almost immediately brought to market under the brand name – Levitra. Being absolutely identical to sildenafil according to structure, vardenafil can offer its potential users several advantages over Viagra.
First of all, its effect duration was slightly longer than Viagra – although still much lower than that of its next competitor called tadalafil. Also, vardenafil has proved to be effective premature ejaculation treatment.
Potential vardenafil side effects are identical to sildenafil, which, again, makes the two medications attribute is very close competitors but leaves them behind tadalafil. Here we may see Cialis vs. Levitra which consider being one of the most effective medications for erectile dysfunction treatment.
Levitra is available in dosages of 2.5 mg, 5 mg, 10 mg and 20 mg. If you are not suffering from any health conditions that might affect the way Vardenafil works and do not take any medicines it interacts with, you will be advised to start by taking 10 mg just before anticipated intercourse. Based on the obtained effect dose may be reduced to 5 mg or to increase to 20 mg.
Table 1: Cialis vs. Levitra
| Product Name | Cialis | Levitra |
| Duration Effect | 17,5 hours | 4-5 hours |
| Cost | $1,43 per item | $1,82 per item |
| Components | Tadalafil | Vardenafil |
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