<s>[INST] The felopio tampons to unblock fallopian tubes, have they been medically researched and are they worth a try. Do they have any negative response so far among those who have used them. Im 33yrs 5ft 4inched. I have been checked like 1 and half years ago an found with a one blocked tube and the other very normal. Have been trying to conceive for 4 years now but so far unsuccessful. I have 6 year old already. [/INST] Hi, Thanks for your query. I have read your query & I understand your concerns. Following is my reply: 1) These felopio tampons to dont work . There is no mechanis, of action of these drug so as to how they act. Hence it is not wise to believe them 2) There may not be negative response from people who used it but also no positive response as they cant open blocked tubes. 3) You can go for hysteroscopy guided tubal recanalisation procedure. If not successful try for pregnancy when follicle grows on the ovary near open normal fallopian tube. I hope I answered your query. I will be available for any followup queries you have. Regards, Dr.Mahesh Koregol IVF & Infertility Specialist. </s>