TORONTO - Pfizer Canada is cutting the price of Viagra, bringing the cost in line with generic versions of the erectile dysfunction drug.

The price drop follows a ruling from the Supreme Court of Canada earlier this month that invalidated the Viagra patent held by the pharmaceutical giant.

"We are committed to ensuring that Viagra patients can continue to have access to the original brand at a competitive price," said spokeswoman Julie-Catherine Racine.

For a package of four Viagra pills, with each pill at 100 milligrams, the new price is about $37, she said. The price had been about $49.

The new prices are now in effect, she added.

The Nov. 8 decision by the high court threw open Canada's market for generic erectile dysfunction drugs.

The Supreme Court, in an unanimous 7-0 ruling, annulled Pfizer's Viagra patent, saying it tried to "game" the Canadian system.

The high court sided with Teva Canada's challenge of the legitimacy of the patent, paving the way for generic versions.

The decision has big implications for users of erectile dysfunction drugs and the pharmaceutical industry because it allows companies to create generic versions, which are usually cheaper for consumers.

Pfizer obtained the patent in 1998 after applying four years earlier. It was first challenged by the generic drug maker in 2007.

Teva originally questioned Pfizer's patent in Federal Court and the Federal Court of Appeal, but lost at both levels.

The ruling wiped out Pfizer's market dominance with Viagra. Its patent had been scheduled to expire in 2014.

Hours after Teva won its appeal before the high court, it posted notice of its own generic version on its website — the first commercial challenge to Pfizer's 14-year Viagra monopoly.

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  • Keeps Your Blood Flowing

    According to Dr. Jennifer Berman, co-founder of the Female Sexual Medicine Center at UCLA, orgasms increase your circulation, keeping the blood flowing to your genital area. This in turn keeps your tissue healthy!

  • It's A Form Of Cardio

    Although it can't be considered an alternative to daily exercise, having an orgasm is a cardiovascular activity. "Your heart rate increases, blood pressure increases [and your] respiratory rate increases," says Berman. And because it's akin to running in many physiological respects, your body also releases endorphins. Sounds like a pretty fun way to work your heart out.

  • Lifts Your Mood

    Feeling down in the dumps? An orgasm might be just what you need to pick yourself up. In addition to endorphins, dopamine and oxytocin are also released during orgasm. All three of these hormones have what Berman terms "mood-enhancing effects." In fact, dopamine is the same hormone that's released when individuals use drugs such as cocaine -- or eat something really delicious.

  • Helps You Sleep

    A little pleasure may go a long way towards a good night's rest. A recent survey of 1,800 women found that over 30 percent of them used sexual release as a natural sedative.

  • Keeps Your Brain Healthy

    Having an orgasm not only works out your heart, but also your head. Barry Komisaruk, Ph.D. <a href="http://www.cosmopolitan.com/sex-love/tips-moves/orgasm-news" target="_hplink">told <em>Cosmopolitan</em></a> that orgasms actually nourish the brain with oxygen. "Functional MRI images show that women's brains utilize much more oxygen during orgasm than usual," Komisaruk says.

  • It's A Natural Painkiller

    One thing that Victorian practitioners may have been onto is that orgasms can work to soothe certain aches and pains -- namely migraines and menstrual cramps. (So now you know what to do next time you have a headache if you don't feel like popping an Excedrin.) According to Berman, the contractions that make up an orgasm can actually work to evacuate blood clots during your period, providing some temporary relief.

  • It Relieves Stress

    Most of our lives are so hectic that it's hard to even imagine being relaxed. However, it turns out that <em>sexual</em> release can double as <em>stress</em> relief. Not only do the hormones help with this task, Berman says that being sexual also gives our minds a break: "When we're stressed out and overextending ourselves, [we're] not being in the moment. Being sexual requires us to focus on one thing only."

  • Gives You A Healthy Glow

    There actually might be something to the idea that we "glow" after sex. The hormone DHEA (dehydroepiandrosterone), which shows <a href="http://www.ivillage.com/secret-health-benefits-sex/4-a-283856" target="_hplink">increased levels during sexual excitement</a>, can actually make your skin healthier.

  • Aids Your Emotional Health

    Last but not least, when you know what it takes to make yourself orgasm, you may increase your emotional confidence and intelligence. "When you understand how your body works and ... [that it] is capable of pleasure on its own, regardless of your partner status, you make much better decisions in relationships," says Logan Levkoff, Ph.D., a sexologist and certified sexuality educator. "You don't look to someone else to legitimize that you're a sexual being."