Medication During Pregnancy: How to Track Safely (7 Steps)
What You Will Accomplish
This guide walks you through 7 practical steps to manage medications safely during pregnancy, from reviewing your current medication list to building a tracking routine that keeps you and your baby protected throughout all three trimesters.
What You Need
- Your current list of all medications, supplements, and OTC drugs
- Contact information for your OB-GYN or midwife
- A medication tracking app like Dozzy (free on iOS and Android)
- Notes from your most recent prenatal appointment
Step-by-Step: Managing Medication During Pregnancy
Step 1: Audit Your Full Medication List
Before anything else, create a complete inventory of everything you take. This includes prescription medications, over-the-counter drugs, vitamins, herbal supplements, and topical creams. According to the CDC, approximately 90% of pregnant women take at least one medication during pregnancy, and more than 70% take at least one prescription drug.
Many women are surprised by how long their list is. Include items that seem harmless, such as antacids, allergy medications, and sleep aids. Your doctor needs the full picture to assess risk.
If you do not already have a personal medication list, now is the time to create one. Enter every item into Dozzy with its dosage, frequency, and reason for use.
Step 2: Schedule a Medication Review with Your OB-GYN
Bring your complete list to your next prenatal visit and review each medication with your provider. The American College of Obstetricians and Gynecologists (ACOG) recommends that every pregnant patient undergo a medication reconciliation as early as possible, ideally during the first prenatal visit.
Your doctor will evaluate each medication using the FDA's Pregnancy and Lactation Labeling Rule (PLLR), which replaced the older letter category system (A, B, C, D, X) in 2015. The PLLR provides more nuanced risk data, including human and animal study results, to help clinicians make informed decisions.
"The old A-through-X system oversimplified risk. The new labeling gives clinicians and patients a much better foundation for shared decision-making during pregnancy," says Dr. Christina Chambers, Professor of Pediatrics at UC San Diego and Director of the Center for Better Beginnings.
Key questions to ask during this review:
- Is each medication necessary during pregnancy?
- Are there safer alternatives?
- What is the risk of stopping this medication versus continuing it?
- Are there trimester-specific concerns?
Step 3: Understand Which Medications Need Special Attention
Certain medication categories require extra caution during pregnancy. The FDA and WHO identify several high-risk groups:
| Medication Type | Risk Level | Notes |
|---|---|---|
| ACE inhibitors / ARBs | High risk (2nd/3rd trimester) | Can cause kidney damage and birth defects |
| Warfarin (blood thinner) | High risk (all trimesters) | Associated with birth defects; heparin often substituted |
| Isotretinoin (Accutane) | Contraindicated | Known to cause severe birth defects |
| Certain anti-seizure drugs | Variable | Valproic acid carries high risk; alternatives exist |
| NSAIDs (ibuprofen, naproxen) | Avoid after 20 weeks | Can affect fetal kidney function and amniotic fluid |
| Statins | Generally avoided | Limited data; most providers discontinue during pregnancy |
| Some antidepressants (SSRIs) | Case-by-case | Benefits may outweigh risks for severe depression |
"The decision to continue or stop a medication during pregnancy is rarely black and white. For many women with chronic conditions, the risk of untreated disease is greater than the risk of the medication itself," says Dr. Anne Drapkin Lyerly, Professor of Social Medicine at UNC Chapel Hill and co-author of research on medication use in pregnancy.
Step 4: Set Up a Pregnancy Medication Tracking Routine
Once your doctor has approved your medication plan, set it up in your tracking app. Consistency matters more during pregnancy because hormonal changes can alter drug absorption and metabolism.
In Dozzy, configure the following:
- Prenatal vitamins: Set a daily reminder, ideally with a meal to reduce nausea
- Prescription medications: Match the exact schedule your doctor prescribed
- Supplements: Iron, folic acid, calcium, and DHA each have optimal timing. Iron absorbs best on an empty stomach; calcium should be taken at a separate time from iron
- Health measurements: Add blood pressure, weight, and blood sugar tracking if your provider recommends monitoring these at home
A research team at Stanford Medicine found that pregnant women who used digital health tracking tools had 18% higher adherence to prenatal supplement regimens compared to those who relied on memory alone.
Step 5: Track Side Effects and Symptoms Carefully
Pregnancy itself causes symptoms that overlap with medication side effects: nausea, fatigue, headaches, and dizziness. This makes it essential to log symptoms systematically so you and your doctor can distinguish between normal pregnancy discomfort and drug-related reactions.
Use a side effect tracking method that records:
- What you experienced
- Severity (1 to 10)
- Time relative to your last dose
- Duration
- Whether it recurred
"Pregnant women often dismiss new symptoms as 'just part of pregnancy.' A symptom diary helps clinicians determine whether a medication adjustment is needed or whether the symptom is physiological," says Dr. Mary Norton, Professor of Obstetrics, Gynecology & Reproductive Sciences at UCSF.
Step 6: Communicate Changes to Every Provider
Pregnant women often see multiple providers: an OB-GYN, a primary care doctor, and sometimes specialists. Each provider may not know what the others have prescribed. According to ACOG, medication errors during pregnancy frequently result from incomplete communication between providers.
Keep your digital medication list updated in real time. Before any appointment, review your list and add any changes. If a new medication is prescribed, check for drug interactions immediately and inform all your other providers.
Step 7: Plan Ahead for Postpartum and Breastfeeding
Medication management does not end at delivery. Many medications that were safe during pregnancy have different risk profiles during breastfeeding. The NIH's LactMed database is the most comprehensive resource for checking drug safety during lactation.
Before your due date, discuss the following with your doctor:
- Which medications will continue postpartum?
- Are any medications incompatible with breastfeeding?
- Will dosages need adjustment after delivery (especially for thyroid and diabetes medications)?
- When should you restart any medications that were paused during pregnancy?
Update your Dozzy medication list as soon as changes are made post-delivery.
Pro Tips for Pregnancy Medication Management
- Set reminders 15 minutes before meals for medications that should be taken with food, giving you time to prepare
- Use Dozzy's notes field to add doctor-specific instructions like "take with folic acid" or "avoid dairy within 2 hours"
- Track your weight weekly as a health measurement. Unexpected weight changes can affect medication dosing
- Download compliance reports before each prenatal visit so your OB-GYN can see your adherence patterns at a glance
- Keep an emergency contact card with your medication list in your hospital bag for labor and delivery
Common Mistakes to Avoid
- Stopping medications without consulting your doctor: Abruptly stopping anti-seizure, blood pressure, or psychiatric medications can be dangerous. Always taper under medical supervision.
- Assuming "natural" means safe: Herbal supplements like St. John's wort, high-dose vitamin A, and certain teas can be harmful during pregnancy. The National Center for Complementary and Integrative Health advises caution with all supplements during pregnancy.
- Relying on outdated FDA categories: The old A-through-X letter system was retired in 2015. Always ask your provider for the current PLLR labeling data rather than referencing older resources.
- Forgetting OTC medications: Decongestants containing pseudoephedrine, some antihistamines, and high-dose aspirin all carry pregnancy risks. Report every OTC drug you take.
- Not updating your list after each appointment: Medication plans often change trimester by trimester. Keeping a stale list leads to errors and confusion between providers.
Download Dozzy free to create your pregnancy medication list, set daily reminders for prenatal vitamins, and share compliance reports with your healthcare team.
This article is for informational purposes only and does not constitute medical advice. Always consult your OB-GYN or healthcare provider before starting, stopping, or changing any medication during pregnancy.