Progesterone Side Effects

The US Prometrium label advises taking the prescribed oral dose at bedtime because dizziness and drowsiness can occur. Some people experience pronounced effects, especially early in treatment. Bedtime dosing does not guarantee that the next morning will be unaffected.

Avoid driving, cycling, or operating machinery while impaired. If you feel dizzy, stop the activity and sit or lie down. NHS advises avoiding alcohol when tiredness or dizziness is a problem. Contact the prescriber if you feel unsteady or unable to function normally.

Review the exact product and its food instructions. Food affects oral progesterone absorption, and directions vary among products. Do not move the dose or change how it is taken using instructions meant for a different medicine.

Record the dose time, food timing, onset of tiredness, and how long it lasts. These details help the clinician assess tolerance and consider a different protective regimen.

Low mood and mood changes are described in progesterone treatment guidance. If symptoms consistently begin on progesterone days and improve after the course, tell the prescriber. Also describe sleep, stress, and any previous depression, because timing alone cannot establish the cause.

Ask for an earlier review if mood symptoms affect work, relationships, or daily functioning. Changing the progestogen or schedule may be considered while maintaining adequate uterine protection. An existing mental-health condition may need treatment alongside the HRT review.

Headaches, breast discomfort, or nausea may also occur. Some symptoms can come from the accompanying estrogen. Bring both medication labels and explain when each symptom occurs so the assessment covers the entire prescription.

Cyclic progesterone can be followed by a withdrawal bleed. The expected dates depend on the prescribed schedule. Spotting after starting or changing HRT should still be reported and reviewed against the regimen.

NICE advises prompt medical help for unscheduled bleeding beyond six months after starting systemic HRT or three months after changing the dose or preparation. Heavy bleeding, bleeding after hysterectomy, or another concerning pattern needs earlier contact.

Tell the clinician if doses were missed. Progesterone protects the uterine lining during systemic estrogen use; stopping it while continuing estrogen can leave that protection inadequate. A more tolerable regimen should be agreed before the protective medicine is removed.

Prometrium contains peanut oil and is contraindicated with peanut allergy. Check inactive ingredients on the dispensed product before taking it. Other formulations may have different ingredients.

One-sided calf swelling or pain and yellowing of the eyes or skin need urgent medical advice. A new breast lump or nipple change should be assessed promptly. Tell the assessing team about estrogen, progesterone, and all other medicines.

• Bring both hormone labels and the actual dates you took each medicine.
• Describe the effect that is hardest to tolerate and how it affects daily life.
• Include bleeding, missed doses, and other medicines or alcohol taken around the dose.
• Ask how the proposed alternative will maintain uterine protection and when it will be reviewed.

A dose adjustment is one possibility. Another progestogen or a different treatment plan may be more suitable. Changing estrogen to a patch alone will not necessarily resolve a reaction to oral progesterone.