Q: My husband has just started to take Lisinopril for his high blood pressure. Can this drug reduce his blood pressure within one or two days or does it take more time to get into his system? We are asking this because we think it’s more likely to be the RESPeRATE that is reducing his blood pressure (and his change in lifestyle) than 2 days worth of lisinopril (2.5mg). It would be great to know what you think
A: Lisinopril starts working within one hour of being taken. Half of the drug is eliminated from the body in 12 hours. However, your husband was started on a very low dose of Lisinopril. For high blood pressure a 10mg dose is the standard dose for adults with good kidneys. Most likely the combination of all three, the life style changes, Resperate use, and Lisinopril, is lowering your husband’s blood pressure.