With great pill comes big risks

After many years of married life, a man finds that he is unable to perform his duties as a husband between the sheets. He goes to his doctor, tries a few things, but nothing works.
"It’s all in your mind," says the doctor, and refers him to a psychiatrist.
After a few visits, the shrink confesses: "I am at a loss as to how you could possibly be cured." The psychiatrist refers him to a witch doctor.
The witch doctor says: "I can cure this."
He throws some powder on a flame, and there is a flash with billowing blue smoke. "This is powerful healing, but you can use it once a year," says the witch doctor.
"All you have to do is say ‘123′ and it shall rise for as long as you wish!"
The guy then asks the witch doctor: "What happens when it’s over?"
The witch doctor says: "All you or your partner has to say is ‘1234′ and it will go down. But be warned; after that it will not work again for a year!"
The guy goes home, and that night he is so excited and anxious to surprise his wife. They get into bed and he says: "123," and just like magic he gets an erection.
His wife rolls over and asks: "What did you say ‘123′ for?"