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.
When will my periods come back after I stop taking the pill? It takes a while for your periods to come back after you stop taking the pill. Most women will have a period around two to four weeks after stopping the pill, but this depends on you and what your cycle is normally like. Weight, health, stress, exercise and conditions such as polycystic ovary syndrome (PCOS) can all influence your cycle of periods.