Vidalista 5 mg, which contains tadalafil, can work for erectile dysfunction (ED). Tadalafil 5 mg is an established dose, particularly for once-daily ED treatment, where the dose may be increased from 2.5 mg to 5 mg based on effectiveness and tolerability. For as-needed ED treatment, Vidalista 5 mg usual starting dose is 10 mg, but it may be reduced to 5 mg depending on individual response. Sexual stimulation is still required for an erection. Tadalafil should not be used with nitrate medicines, because the combination can cause a dangerous drop in blood pressure.