What is the ratio of sildenafil and tadalafil doses?

Drugs with sildenafil for potency are generally available in the following dosages of 25 mg, 50 mg and 100 mg (mg = milligrams, grams is the unit larger and is not used in the doctor with this active ingredient). On the other hand, tadalafil drugs are available in doses of 2.5 mg, 5 mg, 10 mg and 20 mg (here again there are only milligrams, not grams). Tadalafil is therefore used at doses roughly five times lower than sildenafil. If the patient successfully uses a lower dose, e.g. 25 mg of sildenafil, then one of the lower doses of tadalafil, e.g. 2.5 mg - 5 mg, also seems appropriate. It is worth noting, however, that an over-the-counter tadalafil tablet contains 10 mg of the substance, and lower doses are - paradoxically - prescription.

I am not aware of any reliable information regarding "immunity" to drugs supporting potency, so I will not confirm the opinions you have heard. It is true, however, that it is best to use the lowest effective dose (which is often used to start therapy) - this applies to many medications. After all, we want to achieve the desired effect while limiting possible side effects.

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I am attaching information that may be of interest to you:

https://www.gdziepolek.pl/kategorie/leki-na-potencje