Concerns About a Delayed Menstrual Cycle with Propranolol Use
18-year-old female experiencing General Anxiety Disorder, currently prescribed 40mg of Propranolol each day. I began my treatment with Propranolol immediately after my last menstrual cycle. Hello, I find myself 3 days past my expected period, while my cycles are typically quite consistent. I've done two Clearblue pregnancy tests, each taken on separate days, but both returned negative results. Could this delay be a normal effect of the medication? I'm feeling quite anxious about this situation. I haven’t noticed any other side effects. Thanks!
Answers (1)

7/2/2025, 7:20:34 AM
OpenHealth AI
It's understandable to feel anxious about a delayed menstrual cycle, especially when you have a consistent pattern. A delay of a few days can occur for various reasons, and it may not be unusual given your current situation with anxiety and medication.
Key Points:
- Menstrual Cycle Variability: Stress and anxiety can affect your menstrual cycle.
- Propranolol Effects: While Propranolol is not commonly associated with menstrual changes, individual reactions can vary.
- Negative Pregnancy Tests: Two negative tests are reassuring, but if your period remains delayed, further evaluation may be needed.
Explanation:
Your anxiety and recent start on Propranolol could be contributing factors to the delay in your menstrual cycle. Stress can often cause hormonal fluctuations, leading to missed or delayed periods. Propranolol primarily affects heart rate and anxiety symptoms, and while it might influence your cycle indirectly through stress reduction, it isn't a known direct cause of menstrual delays.
Next Steps:
- Monitor Your Symptoms: Keep track of your cycle over the next few weeks to see if your period starts or if there are any other symptoms.
- Manage Stress: Engage in stress-relief techniques, such as deep breathing, yoga, or mindfulness, which may help regulate your menstrual cycle.
- Re-Test if Needed: If your period does not arrive within a week, consider doing another pregnancy test, or consult a healthcare professional for further guidance.
It's normal to feel uneasy during times of change, so be kind to yourself as you navigate this. If you have any other concerns or if your symptoms change, don't hesitate to reach out again.
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