--- title: Late luteal phase dysphoric disorder (LLPDD) explained description: LLPDD, short for late luteal phase dysphoric disorder, is the term DSM-IV replaced with PMDD in 1994, before DSM-5 made it a full diagnosis. url: https://niyora.com/glossary/late-luteal-phase-dysphoric-disorder/ --- - [Niyora](https://niyora.com/) - [Glossary](https://niyora.com/glossary/) - Late luteal phase dysphoric disorder (LLPDD) explained Term # Late luteal phase dysphoric disorder (LLPDD) explained Late luteal phase dysphoric disorder (LLPDD) is the older clinical name for what's now diagnosed as premenstrual dysphoric disorder (PMDD). The DSM-IV replaced the term in 1994, and the DSM-5 made PMDD a full diagnosis in 2013. You'll still see LLPDD in older research studying the same symptoms. Updated 14 October 2026 Niyora editorial ## At a glance - LLPDD is the original name for PMDD, used in DSM-III-R research from 1987 before the DSM-IV renamed it in 1994. - LLPDD and PMDD describe the same pattern: five or more symptoms, including a core mood symptom, confirmed by daily ratings over two cycles. - Early LLPDD trials tested fluoxetine, light therapy, alprazolam and atenolol, with mixed results. The fluoxetine finding, that an SSRI eased symptoms, held up and shaped today's PMDD treatment guidelines. - If you see LLPDD in an older study, it's describing what's diagnosed as PMDD today. ## What is LLPDD, and how does it relate to PMS and PMDD? Late luteal phase dysphoric disorder (LLPDD) is the original clinical name for what's now called **premenstrual dysphoric disorder (PMDD)**. The DSM-III-R introduced the term in 1987 to describe severe mood and physical symptoms that show up in the late luteal phase, the final week or so before a period. To meet the DSM-III-R criteria, a woman needed: - Symptoms confirmed by daily ratings over at least two menstrual cycles, not just her memory of a single month - A pattern that appeared in the final week or two of the [luteal phase](https://niyora.com/luteal-phase/) and eased once bleeding started - Mood symptoms severe enough to disrupt work, relationships or daily life PMS is the broader, more common experience of mild physical or emotional symptoms before a period. LLPDD, like PMDD today, described a smaller group whose symptoms were more severe and confirmed with tracking rather than memory. For the current diagnostic picture, see our [guide to PMDD](https://niyora.com/pmdd/). ## What does the research on LLPDD show? Much of the early evidence for PMDD treatments comes from LLPDD-labeled trials run in the late 1980s and 1990s. Researchers tested several approaches, with mixed results. | Treatment studied | What researchers tested | What they found | | --- | --- | --- | | Fluoxetine (SSRI) | 20 mg a day for two cycles vs placebo | 9 of 10 women improved, versus 2 of 10 on placebo [1] | | Bright light therapy | 30 minutes of evening bright light vs dim light | Reduced depression and premenstrual tension compared with baseline [2] | | Alprazolam | Three months of alprazolam vs placebo | Eased tension, irritability and anxiety, but only in women with LLPDD alone [4] | | Atenolol (beta-blocker) | 50 mg daily vs placebo | Improved irritability and mood, most in women symptomatic for over five years [7] | | Tryptophan | Daily tryptophan supplementation, open pilot study | Symptoms eased with mild side effects in this small, uncontrolled trial [5] | Other LLPDD research looked at biology rather than treatment. Women with LLPDD showed altered sensitivity to alcohol in the late luteal phase [3], and a stronger startle response to anticipated stimuli, compared with women without the condition [6]. Later work linked these luteal-phase changes to the hormone **allopregnanolone** [8]. Read more in our [allopregnanolone glossary entry](https://niyora.com/glossary/allopregnanolone/). ## Why does the rename to PMDD matter for treatment and coping? The DSM-IV replaced LLPDD with premenstrual dysphoric disorder in 1994. The DSM-5 then made PMDD a full diagnosis with its own criteria in 2013. The rename reflected a better understanding of the condition, not a new illness. A few specific things changed. - The name now describes the whole premenstrual window, not just the final luteal phase - The criteria were refined to require five symptoms, with at least one a core mood symptom - PMDD moved from a research appendix into the main DSM-5 as a recognized diagnosis in 2013, and it remains in DSM-5-TR and in ICD-11 under its own code What stayed the same matters most for coping. Some women react differently to normal hormone shifts, not to abnormally high or low hormone levels themselves. For more on this mechanism, see [what causes PMDD](https://niyora.com/questions/what-causes-pmdd/). If you're trying to work out whether the week before your period fits this pattern, two months of daily notes matter more than the label on it. Niyora is a PMS and PMDD support app, and its Moon tool can help you write down what happened in the moment, then look at it again once things ease. ## What related terms should you know? A few related terms come up alongside LLPDD and PMDD. - **Corpus luteum**: the structure that forms after ovulation and drives the hormone shifts of the luteal phase. See our [corpus luteum glossary entry](https://niyora.com/glossary/corpus-luteum/) - **Luteal phase**: the second half of the cycle, from ovulation to your period, when LLPDD and PMDD symptoms show up - **Allopregnanolone**: a hormone byproduct of progesterone linked to the mood changes studied in PMDD research - **PMDD**: the current diagnosis, with the full criteria covered above For the studies behind these terms, our [research library](https://niyora.com/research/) summarizes the evidence in plain language. ## Questions people ask Is LLPDD the same as PMDD? + LLPDD is the older name for the same condition now called PMDD. The DSM-III-R used LLPDD in 1987. The DSM-IV renamed it premenstrual dysphoric disorder in 1994, and the DSM-5 made it a full diagnosis in 2013. If you see LLPDD in a study, it's describing what's diagnosed as PMDD today. Why did LLPDD get renamed to PMDD? + Researchers renamed LLPDD to premenstrual dysphoric disorder in 1994 because the original name only captured the late luteal phase, when symptoms were already well under way. The DSM-5 then added full diagnostic criteria in 2013: five symptoms, one a core mood symptom, confirmed by daily tracking over two cycles. Were the old LLPDD treatment trials still useful? + Yes. Small LLPDD trials from the 1980s and 1990s, like the fluoxetine study showing 9 of 10 women improved versus 2 of 10 on placebo, laid groundwork for PMDD treatment today. Later, larger studies refined dosing and timing, but the core finding, that SSRIs can ease PMDD symptoms, held up. Does LLPDD show up in ICD-11? + No. LLPDD was a DSM-III-R term only, never used in ICD-11. ICD-11 instead uses the code GA34.41 for premenstrual dysphoric disorder, matching DSM-5-TR criteria of at least five symptoms, one a core mood symptom, confirmed by daily ratings across two menstrual cycles. ## Sources - 1. [Fluoxetine in the treatment of late luteal phase dysphoric disorder](https://pubmed.ncbi.nlm.nih.gov/2071558/), The Journal of clinical psychiatry, 1991 - 2. [A controlled study of light therapy in women with late luteal phase dysphoric disorder](https://doi.org/10.1016/s0165-1781(99)00043-8), Psychiatry research, 1999 - 3. [Altered sensitivity to alcohol in the late luteal phase among patients with premenstrual dysphoric disorder](https://doi.org/10.1016/s0306-4530(03)00121-5), Psychoneuroendocrinology, 2004 - 4. [Alprazolam in the treatment of two subsamples of patients with late luteal phase dysphoric disorder: a double-blind, placebo-controlled crossover study](https://pubmed.ncbi.nlm.nih.gov/8058235/), Obstetrics and gynecology, 1994 - 5. [Tryptophan in the treatment of late luteal phase dysphoric disorder: a pilot study](https://pubmed.ncbi.nlm.nih.gov/8204563/), Journal of psychiatry & neuroscience : JPN, 1994 - 6. [Patients with premenstrual dysphoric disorder have increased startle modulation during anticipation in the late luteal phase period in comparison to control subjects](https://doi.org/10.1016/j.psyneuen.2011.02.011), Psychoneuroendocrinology, 2011 - 7. [Atenolol treatment of late luteal phase dysphoric disorder](https://doi.org/10.1016/0165-0327(88)90082-1), Journal of affective disorders, 1988 - 8. [5α-Reductase Inhibition Prevents the Luteal Phase Increase in Plasma Allopregnanolone Levels and Mitigates Symptoms in Women with Premenstrual Dysphoric Disorder](https://doi.org/10.1038/npp.2015.246), Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2016 Ask AI about this page Copy prompt ChatGPT ↗ Claude ↗ Perplexity ↗ Google AI Mode ↗ Grok ↗ On this page - [What is LLPDD, and how does it relate to PMS and PMDD?](#what-is-llpdd-and-how-does-it-relate-to-pms-and-pmdd) - [What does the research on LLPDD show?](#what-does-the-research-on-llpdd-show) - [Why does the rename to PMDD matter for treatment and coping?](#why-does-the-rename-to-pmdd-matter-for-treatment-and-coping) - [What related terms should you know?](#what-related-terms-should-you-know) - [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 Condition PMDD (premenstrual dysphoric disorder), explained Condition The luteal phase: what's happening in your body and mood Question What causes PMDD? Cycle guide Menstrual cycle hormones, phase by phase Guide All 26 research findings Term Corpus luteum: what it means Term What Does PMS Mean in Text and Slang? Term Allopregnanolone: what it means for PMDD