Prazosin is primarily used to treat high blood pressure (hypertension), either alone or with other antihypertensive agents[1][3][5]. It is not the first-line treatment but can be considered for patients needing additional blood pressure control.
Beyond its primary use, prazosin has several off-label (non-FDA approved) uses:
- Treating nightmares and sleep disturbances related to post-traumatic stress disorder (PTSD)[2][3][4][6]. Clinical studies and guidelines indicate prazosin can reduce the frequency and severity of PTSD-associated nightmares.
- Managing symptoms of benign prostatic hyperplasia (BPH), particularly urinary hesitancy[3][7][13]. While not the most common treatment, it relaxes bladder outflow, easing symptoms of enlarged prostate.
- Treating conditions such as Raynaud phenomenon, where it can reduce the frequency of attacks in some patients[3].
- Providing additional therapy in cases of pheochromocytoma (catecholamine-secreting tumors), particularly before surgery, although other drugs may be more commonly used[3].
- As an adjunct treatment for scorpion envenomation, particularly in certain regions such as India[3].
Prazosin is taken orally. Common side effects include dizziness, sleepiness, and nausea[7][13].
References
- [1] Prazosin (oral route) – Side effects & dosage – Mayo Clinic
- [2] Prazosin dosed 3 times a day to treat flashbacks related … – PMC
- [3] Prazosin – StatPearls – NCBI Bookshelf
- [4] Prazosin for PTSD-related nightmares (Guidelines)
- [5] Prazosin: MedlinePlus Drug Information
- [6] 10 Surprising Off-Label Uses for Prescription Medications – Pharmacy Times
- [7] Prazosin (Minipress): Uses, Side Effects, Interactions – WebMD
- [13] Prazosin – Wikipedia