From the Italian newspaper La Repubblica today:

WOMAN ALMOST KILLS HUSBAND WITH VIAGRA LOVE POTION!

The woman was tired of her husband who provided her with far too few lovemaking sessions, and decided to take matters into her own hands.  
She dissolved Viagra in her husband's glass of wine; the husband sustained a heart attack from the love potion and nearly died.
  The woman, from Frosinone, south of Rome, had proably imagined a somewhat different conclusion to the evening, when she set her sex coup in motion.
 She dissolved two Viagra tablets in her unknowing husband's wine glass - and handed him the glass during dinner. But the dose of Viagra became too powerful for him.
 - I'm feeling sick, said the husband after having drunk the "sex wine," writes La Repubblica.
  The husband complained of chest pains and radiating arm pains and his wife had to call for an ambulance which took the poisoned husband to the hospital in Ceprano.
 Doctors quickly diagnosed a myocardial infarction - a heart attack. The woman then burst into tears and admitted the sex coup against her husband.
  - It was a proof of love from my wife. The last few months have been very stressful, and this made me distanced from my wife, to the degree that I rejected her sexually, says the 53-year-old husband to La Repubblica.  

The husband survived, but his wife can forget about sex during the next few months. His doctors have ordered complete rest for an unforeseen period of time.