Company Profile. Integra LifeSciences, a world leader in medical technology, is dedicated to limiting uncertainty for surgeons, so they can concentrate on providing the best patient care. Integra offers innovative solutions in orthopedic extremity surgery, neurosurgery, and reconstructive and general surgery.
There are subtle differences in how long the drug works and how quickly it works. Levitra works a little longer than Viagra. They both take effect in about 30 minutes. With Levitra, the effects last for about 5 hours. With Viagra, the effects last approximately 4 hours. Cialis works a bit faster (within about 15 minutes), and the effects last much longer -- up to 36 hours in some cases. Stendra can start working in as little as 15 minutes and last up to 6 hours.
That depends on what your taking and how much. Generally, any medication taken orally takes about a half an hour to absorb, but everyone is different. Some OTC antihistamines, like benadryl, last about 4 to 6 hours. Others can last any where from 12 to 24 hours.t takes 30 to 45 minutes to take effect. I take zyrtec at 7 pm. these are both 24 hours tablets. But they don't last 24 hours. My doctor put me on both. I also take alavert 24 hour disolving tab.