"New Drug" joke

"Doc, you've gotta help me! My wife just isn't interested in sex anymore. Haven't you got a pill or something I can give her?"
"Look, I can't prescribe..."
"Doc, we've been friends for years. Have you ever seen me this upset? I am desperate! I can't think; I can't concentrate; my life is going utterly to hell! You've got to help me."
The doctor opens his desk drawer and removes a small bottle of pills. "Ordinarily, I wouldn't do this. These are experimental; the tests so far indicate that they're VERY powerful. Don't give her more than ONE, understand? Just ONE."
"I don't know, doc, she's awfully cold..."
"One. No more. In her coffee. Okay?"
"Um... okay."
The guy expresses gratitude and leaves for home, where his wife has dinner waiting. When dinner is finished, she goes to the kitchen to bring dessert. The man hastily pulls the pills from his pocket and drops one into his wife's coffee. He reflects for a moment, hesitates, then drops in a second pill.
And then he begins to worry. The doctor did say the pills were powerful. Then inspiration strikes -- he drops one pill into his own coffee.
His wife returns with the shortcake and they enjoy their dessert and coffee. Sure enough, a few minutes after they finish, his wife shudders a little, sighs deeply and heavily, and a strange look comes over her. In a near-whisper and a tone of voice he has never heard her use before, she says, "I...need... a man..."
The husband's eyes glitter and his hands tremble as he replies, "Me... too..."