Dysmenorrhea refers to painful menstrual cramps and can be classified as primary dysmenorrhea (without pelvic pathology) or secondary dysmenorrhea (caused by underlying conditions such as endometriosis). Primary dysmenorrhea occurs in up to 90% of women and starts during adolescence.
Pain that is extreme or persistent despite treatment should be evaluated by a doctor but you do not need to delay self-treatment prior to an appointment.
First-line recommendations:
Nonsteroidal anti-inflammatory drugs (NSAIDs): Ibuprofen 200mg tablets (FDA N020602): orally every 6-8 hours as needed (do not exceed daily maximum listed on package). Naproxen 220mg caplets (FDA ANDA 204872): orally every 8-12 hours as needed (do not exceed daily maximum listed on package).
Heat pad: Application of a heating pad or hot water bottle to the lower abdomen for pain relief as needed. Hot water pad with knitted cover or Portable electronic heating belt.
Second-line recommendations:
Acetaminophen: Alternative for patients who cannot take NSAIDs. Dose: 500-1000 mg orally every 4-6 hours as needed (important to not exceed daily maximum listed on package). Acetaminophen 500mg gelcaps (FDA M013).
Oral contraceptives (if not intending to get pregnant): the only over-the-counter birth control pill is a progesterone-only medication called norgesterol (Opill). Dose: 0.075 mg orally once daily within a 3 hour window. Failure rate: perfect use 0.3%, typical use 9%. Norgesterol (Opill) 0.075 mg (FDA NDA 21045/S-011).
Self-acupressure: a safe and low-risk intervention, can significantly reduce average menstrual pain intensity, number of days with pain, and use of analgesics, as supported by a clinical trial. Self-acupressure tutorial.
Prescription medications:
Combined hormonal contraceptives: Used to suppress ovulation and reduce menstrual flow, thereby reducing or eliminating pain associated with menses.
Gonadotropin-releasing hormone (GnRH) agonists: Reserved for secondary dysmenorrhea caused by conditions like endometriosis.
Citations:
McKenna, K. A., & Fogleman, C. D. (2021). Dysmenorrhea. American family physician, 104(2), 164-170.