The term "ED" describes the 21st-century impotence problem. The treatment for it has been bigfun 100 tablets. Avoid taking ED drugs as they become dangerous if you are taking any prescriptions that include nitrates. If you must take medication, begin by doing as prescribed by your physician. After that, take this medication. Bigfun is a non-prescription medicine for male erectile dysfunction. Impotence is another term for this illness. For those who do not know, Viagra is a widely used medication for treating male impotence. Expect no immediate benefits from the drug as it may take up to thirty minutes to start working.