What is the best stimulation drug?
No single drug has been proven to be the best for all ladies. The cheapest drug is usually menopur which contains natural FSH and LH extracted from human urine (in an equal ratio i.e,. 75 iu of FSH and 75 iu of LH per vial). Some studies have suggested it may be more effective for some ladies than synthetic FSH, possibly because it is natural. Merional is almost identical to menopur but produced by a different company and claimed to have a slightly more reliable content of FSH and LH. Fostimon is natural urinary hormone but has been purified to remove LH. Some doctors say that it may produce better quality eggs in ladies who are oversensitive to LH (e.g., older ladies or ladies with PCOS). Some doctors prefer synthetic hormones because they say that the urinary derived hormones can have variable doseages per vial. Gonal F is a synthetic version of FSH that is derived from genetically modified hamster cell culture lines. Puregon is a similar product to gonal F. Neither Gonal F nor Pureg
