--- title: Spironolactone for PMS: dosage, evidence and side effects description: Spironolactone for PMS eased bloating and mood symptoms in several trials but not all. Here's the evidence, typical dosing and who should avoid it. url: https://niyora.com/treatments/spironolactone-for-pms/ --- - [Niyora](https://niyora.com/) - [Treatments](https://niyora.com/treatments/) - Spironolactone for PMS: does it work? Treatment guide # Spironolactone for PMS: does it work? Spironolactone can ease PMS bloating, breast tenderness and some mood symptoms, though trial results are mixed rather than consistent. It's typically taken as 100 mg once a day from around day 12 to 14 of the cycle through the first day of bleeding, and a doctor needs to prescribe and monitor it. Side effects like irregular bleeding and dizziness are common enough to watch for. Updated 14 October 2026 Niyora editorial Mixed evidence Strength of evidence Mixed Trials disagree, or the effect is small. - None - Limited - Mixed - Moderate - Strong ## At a glance - Four of five small placebo-controlled trials found spironolactone 100 mg daily improved PMS bloating, breast tenderness or mood symptoms; one found no overall benefit. - It's usually taken only in the luteal phase, from around day 12 to 14 of the cycle until the first day of the next period, not every day of the month. - Common side effects include irregular periods, dizziness from lower blood pressure, breast tenderness and, rarely, raised potassium. - Avoid it with kidney disease, high potassium, Addison's disease, certain blood pressure medicines, or if you're pregnant or trying to conceive, without a doctor's input. - Track symptoms daily with a tool like a DRSP chart so you and your doctor can see a real pattern, not just memory of how one day felt. ## Strength of evidence Mixed evidence - None - Limited - Mixed - Moderate - Strong Four small placebo-controlled trials found spironolactone eased PMS bloating, breast tenderness or mood symptoms; one similarly designed trial found no benefit overall. All are decades old and small, with no large meta-analysis to pool them, so evidence is mixed rather than strong. Side by side Spironolactone and Drospirenone pill (Yaz) What it is Spironolactone A diuretic that blocks aldosterone and androgen receptors Drospirenone pill (Yaz) A combined pill with drospirenone, which has similar antimineralocorticoid and antiandrogenic effects Also compared in the table below - Approved for PMDD - Prevents pregnancy - Typical use - Evidence for premenstrual symptoms - Common side effects | Compared on | Spironolactone | Drospirenone pill (Yaz) | | --- | --- | --- | | What it is | A diuretic that blocks aldosterone and androgen receptors | A combined pill with drospirenone, which has similar antimineralocorticoid and antiandrogenic effects | | Approved for PMDD | No, used off-label for PMS or PMDD | Yes, in a 24-active/4-placebo regimen (Journal of Reproductive Medicine, 2008) | | Prevents pregnancy | No | Yes | | Typical use | 100 mg once daily, luteal phase only, in most PMS trials | One active pill daily for 24 days, then 4 placebo days, every cycle | | Evidence for premenstrual symptoms | Mixed: positive in four small trials, negative in one | Positive in the trials that led to FDA approval | | Common side effects | Irregular bleeding, dizziness, rarely raised potassium | Nausea, breakthrough bleeding, a small increase in blood clot risk like other combined pills | ## Does spironolactone work for PMS? Spironolactone seems to help some PMS symptoms, but the evidence is mixed, not definitive. Several small placebo-controlled trials from the 1980s and 1990s found it eased bloating, breast tenderness and negative mood scores compared with placebo (Acta Obstetricia et Gynecologica Scandinavica, 1995). One similarly designed trial found no overall benefit. Spironolactone was first developed to treat high blood pressure and fluid retention. Doctors now sometimes prescribe it off-label for PMS because it blocks aldosterone and androgen receptors, rather than changing your underlying hormone levels. **Bloating and swelling have the most consistent evidence behind them**, since spironolactone works as a diuretic first. Mood benefits show up in some trials but not others. If you want to understand what PMS is first, see [what PMS is](https://niyora.com/premenstrual-syndrome/). For the full range of options beyond this one drug, [PMS treatment: what actually helps](https://niyora.com/treatments/pms-treatment/) covers the rest. Where this sits in your cycle Luteal phase Days 15 to 28 Day 1 Ovulation Day 28 ## What does the research say? Five small trials have tested spironolactone against placebo for PMS, mostly during the 1980s and 1990s. Four found real benefit for mood, physical symptoms or both, using daily self-ratings to diagnose and track PMS. One trial found no significant difference overall, though women with bigger luteal-phase androgen swings responded better. | Study | Design | What it found | | --- | --- | --- | | Acta Obstet Gynecol Scand, 1995 (n=35) | Placebo-controlled crossover | Lower mood and physical symptom scores (p<0.001), including less irritability, depression, swelling, breast tenderness and food craving | | Curr Med Res Opin, 1987 (n=63) | Placebo-controlled, parallel groups | Significantly less bloating (p<0.001); no change in weight, blood pressure or hormone levels | | Int J Gynaecol Obstet, 1991 (n=43) | Placebo-controlled crossover | Beat placebo on a mood index, similar to medroxyprogesterone acetate | | Br J Obstet Gynaecol, 1979 (n=28) | Crossover, not fully randomized | Reduced weight and eased psychological symptoms in over 80% of women | | Aust N Z J Obstet Gynaecol, 1991 | Placebo-controlled crossover | No overall difference from placebo; responders had larger luteal-phase androgen changes | What the research says The evidence for spironolactone in PMS is mixed: positive in four small trials, negative in one, with no large modern meta-analysis to settle it. Treat it as one option worth trying, not a guaranteed fix. ## How do you take spironolactone for PMS? In the trials that worked, women took 100 mg of spironolactone once a day. They started around day 12 to 14 of the cycle and continued through the first day of the next period (Acta Obstetricia et Gynecologica Scandinavica, 1995; Current Medical Research and Opinion, 1987). That's luteal-phase dosing only, not every day of the month. - Luteal-phase dosing: day 12 to 14 through the first day of bleeding - Typical trial dose: 100 mg once daily - Your doctor sets the actual dose and timing for your cycle and health Doctors may adjust the dose up or down based on how your body responds, and on blood pressure or potassium checks at follow-up visits. For more on doses and timing, see [spironolactone dosage: how much and when](https://niyora.com/treatments/spironolactone-dosage/). ## How long does it take to work? The trials tracked women across several cycles, for example three months on spironolactone and three on placebo in a crossover design, using daily symptom ratings. That means you likely need two to three full cycles before you can judge whether it's working, not just a few days. A [DRSP chart](https://niyora.com/tools/drsp-chart/) lets you log symptoms every day, so you and your doctor see a real pattern instead of relying on memory of a single day. See [how long does spironolactone take to work](https://niyora.com/treatments/how-long-does-spironolactone-take-to-work/) for more on what to expect cycle by cycle. In the moment Niyora is a PMS and PMDD support app. While you wait to see if spironolactone helps, Niyora's Moon feature lets you write down what happened in a hard moment, see it from another angle, and draft a reply you can hold onto for 20 minutes. ## What are the side effects? Spironolactone is a potassium-sparing diuretic, so most side effects relate to fluid, blood pressure and potassium. In the trials, side effects were generally mild; one study noted a rise in serum aldosterone with no change in blood pressure or weight (Current Medical Research and Opinion, 1987). - Irregular periods or spotting between periods - Dizziness or lightheadedness from lower blood pressure - Breast tenderness - Fatigue - Raised potassium, uncommon but checked with blood tests More on timing, severity and mood-related effects: spironolactone side effects, including mood. When to see a doctor See a doctor promptly if you notice an irregular heartbeat, muscle weakness, or far less urination than usual. These can signal high potassium, which needs a blood test. ## Who should avoid it? Spironolactone isn't right for everyone. A doctor checks your health before you start, and decides if it's safe alongside anything else you take. - Kidney disease or reduced kidney function - Already high potassium, or taking other potassium-sparing drugs - Addison's disease - Taking ACE inhibitors, ARBs or certain other blood pressure medicines - Pregnant, trying to conceive or breastfeeding If your symptoms look more like PMDD, with mood symptoms severe enough to disrupt your week every cycle, talk to a doctor about whether a PMDD-specific treatment plan fits better. ## What else helps alongside it? Spironolactone eases bloating and some mood symptoms, but it isn't the only option and it won't fix everything about PMS. Some clinicians add or switch to a contraceptive pill containing drospirenone, a progestin with antimineralocorticoid and antiandrogenic effects similar to spironolactone's (Minerva Ginecologica, 2010). One such pill, marketed as Yaz, uses a 24-active, 4-placebo regimen and is FDA-approved for PMDD based on two key trials (Journal of Reproductive Medicine, 2008). It hasn't been tested head-to-head against spironolactone for PMS, so spironolactone vs Yaz comes down to what your doctor thinks fits your symptoms, contraception needs and history. Cognitive behavioral therapy and SSRIs taken only in the luteal phase are other guideline-backed options for easing symptoms. ## Questions people ask Does spironolactone help PMS bloating? + Spironolactone seems to help PMS bloating specifically. In one placebo-controlled trial of 63 women, it significantly reduced bloatedness compared with placebo, with no change in weight or blood pressure (Current Medical Research and Opinion, 1987). Of all PMS symptoms, bloating has the most consistent evidence behind spironolactone's effect, since the drug works as a diuretic. Is spironolactone a water pill? + Spironolactone is a potassium-sparing diuretic, so yes, it works partly like a water pill. It blocks aldosterone, a hormone that makes your body hold onto salt and water, and also blocks androgen receptors. That combination is why it's used for PMS bloating as well as acne and excess hair growth. Do you take spironolactone every day for PMS? + Most PMS trials used spironolactone only in the luteal phase, not every day of the month. Women took 100 mg daily starting around day 12 to 14 of the cycle and stopped on the first day of the next period (Acta Obstetricia et Gynecologica Scandinavica, 1995; Current Medical Research and Opinion, 1987). Your doctor may use a different schedule. Spironolactone vs Yaz for PMS, which is better? + Spironolactone and Yaz (a drospirenone-containing pill) both act on aldosterone and androgen receptors, but no trial has compared them head-to-head for PMS. Yaz, in a 24-active, 4-placebo regimen, is FDA-approved for PMDD based on key trials (Journal of Reproductive Medicine, 2008). Your doctor can help weigh contraception needs against side effects. How long until spironolactone works for PMS? + PMS trials of spironolactone tracked women across several menstrual cycles, so plan on two to three full cycles before judging whether it's helping. Daily symptom tracking, like a DRSP chart, shows whether bloating, breast tenderness or mood scores are improving cycle to cycle, rather than relying on how symptoms felt on any one day. ## Sources - 1. [Treatment of premenstrual syndrome by spironolactone: a double-blind, placebo-controlled study](https://doi.org/10.3109/00016349509021201), Acta obstetricia et gynecologica Scandinavica, 1995 - 2. [A double-blind, placebo-controlled evaluation of spironolactone in the premenstrual syndrome](https://doi.org/10.1185/03007998709112403), Current medical research and opinion, 1987 - 3. [Premenstrual syndrome and spironolactone](https://doi.org/10.1111/j.1479-828x.1991.tb02824.x), The Australian & New Zealand journal of obstetrics & gynaecology, 1991 - 4. [Premenstrual tension: a placebo-controlled efficacy study with spironolactone and medroxyprogesterone acetate](https://doi.org/10.1016/0020-7292(91)90357-b), International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics, 1991 - 5. [Effect of spironolactone on premenstrual syndrome symptoms](https://pubmed.ncbi.nlm.nih.gov/3302250/), The Journal of reproductive medicine, 1987 - 6. [Treatment of premenstrual syndrome by spironolactone](https://doi.org/10.1111/j.1471-0528.1979.tb10582.x), British journal of obstetrics and gynaecology, 1979 - 7. [[Extracontraceptive benefits of EE/DRSP (Yaz) in 24+4 day regimen]](https://pubmed.ncbi.nlm.nih.gov/20595950/), Minerva ginecologica, 2010 - 8. [YAZ in the treatment of premenstrual dysphoric disorder](https://pubmed.ncbi.nlm.nih.gov/18980045/), The Journal of reproductive medicine, 2008 Ask AI about this page Copy prompt ChatGPT ↗ Claude ↗ Perplexity ↗ Google AI Mode ↗ Grok ↗ On this page - [Does spironolactone work for PMS?](#does-spironolactone-work-for-pms) - [What does the research say?](#what-does-the-research-say) - [How do you take spironolactone for PMS?](#how-do-you-take-spironolactone-for-pms) - [How long does it take to work?](#how-long-does-it-take-to-work) - [What are the side effects?](#what-are-the-side-effects) - [Who should avoid it?](#who-should-avoid-it) - [What else helps alongside it?](#what-else-helps-alongside-it) - [Questions](#faq) Niyora PMS & PMDD support For the hard moment before your period. Private, no account. [Get it on iPhone](https://apps.apple.com/app/niyora-pms-emotions/id6764561688) ## Keep reading Treatment Spironolactone for PMDD: does it work? Treatment Spironolactone dosage: how much and when Treatment How long does spironolactone take to work? Treatment PMS treatment: what actually helps Condition What is PMS? Premenstrual syndrome, explained Care guide Finding a PMDD specialist Guide All 26 research findings