Tadalafil is not effective after taking 20mg, may be the lack of sexual stimulation, drug resistance, erectile dysfunction, etc., should be correctly given sexual stimulation, change drugs or other treatment.
1. Lack of sexual stimulation: tadalafil is mainly used for the treatment of erectile dysfunction, if you take 20mg and still have no effect, it may be the lack of sexual stimulation, tadalafil needs to be sexually stimulated in order to be effective, it is recommended that the correct use of the drug in order to achieve the desired effect.
2. Drug resistance: long-term use of tadalafil may produce drug resistance, even if the dosage is increased, it is difficult to achieve the effect, it is recommended to replace other drugs or treatment.
3. Erectile dysfunction is serious: If erectile dysfunction is serious, only rely on drug treatment can not achieve the expected results, it is recommended to cooperate with psychosexual treatment, surgical treatment.
Adverse reactions such as back pain and myalgia may occur when taking tadalafil, which can usually be relieved on their own. The drug is contraindicated for those who are allergic to tadalafil, are using GC stimulants such as lioresiguanide, have hypersensitivity reactions, children, pregnant and lactating women. During the use of the drug, if discomfort occurs, you should go to the hospital for treatment.