Drug & supplement interaction

Prenatal Vitamins + Clonidine

Clonidine brand name: Catapres.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Prenatal Vitamins and Clonidine in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

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Interaction report

Prenatal Vitamins and Clonidine

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Clonidine and Prenatal Vitamins in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

Worth understanding: our licensed dataset holds no drug-interaction record for Prenatal Vitamins at all — not against Clonidine, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Prenatal Vitamins safety at a glance

Prenatal Vitamins overall Generally safe Generally safe when taken as directed, though they can cause mild stomach upset or constipation.
Pregnancy Likely Safe When used orally. Prenatal vitamins contain many different minerals, vitamins, and sometimes other dietary supplement ingredients. Each individual ingredient ha... Read the full pregnancy detail
Breastfeeding Possibly Safe When used orally. Prenatal vitamins usually do not contain ingredients in amounts that exceed the tolerable upper intake level (UL). The UL is the highest level... Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Clonidine and Prenatal Vitamins? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Clonidine’s Own FDA Label Lists

This is not an interaction — none of it involves Prenatal Vitamins. These are the most notable effects listed in the ADVERSE REACTIONS section of Clonidine’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 4 of them are worth acting on rather than waiting out — marked below.

  • A slow heartbeat Worth acting on
  • Hallucinations Worth acting on
  • Raised blood pressure Worth acting on mentioned in 5.7% of FDA reports for Clonidine
  • An allergic reaction Worth acting on
  • Vivid dreams or nightmares
  • Mood changes or irritability
  • Tremor or shakiness
  • A stuffy or runny nose
  • Dry mouth
  • A fast or pounding heartbeat

Showing the 10 most notable of 21 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Clonidine. Read the label on DailyMed › Where a percentage is shown, it is the share of 57,112 voluntary FDA FAERS reports for Clonidine that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Prenatal Vitamins’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Prenatal Vitamins side to compare — that is a limit of the record, not a statement that Prenatal Vitamins has no side effects.

Special populations

Prenatal Vitamins in Pregnancy & Breastfeeding

Pregnancy Likely Safe

When used orally. Prenatal vitamins contain many different minerals, vitamins, and sometimes other dietary supplement ingredients. Each individual ingredient has a unique safety profile. Clinical studies evaluating prenatal vitamins show that prenatal vitamins are safe when used appropriately during pregnancy.

Lactation Possibly Safe

When used orally. Prenatal vitamins usually do not contain ingredients in amounts that exceed the tolerable upper intake level (UL). The UL is the highest level of nutrient intake that is unlikely to have a risk of adverse effects for most people, as determined by the Food and Nutrition Board and the National Academies of Science. Therefore, prenatal vitamins have apparent safety during lactation. However, high quality research assessing the safety of prenatal vitamins during lactation is lacking.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

Overlapping uses

What Clonidine Is Prescribed For, and What Prenatal Vitamins Has Been Studied For

These two come up together because they touch the same health topic — not because they do the same job. Clonidine is a prescription medicine with approved uses on its FDA label. Prenatal Vitamins is a supplement: what follows is what researchers have looked at it for, and how strong that evidence is.

Clonidine is prescribed for: Clonidine is used to treat high blood pressure (hypertension). Several products — including Clonidine Hydrochloride tablets, Javadin oral solution, Nexiclon XR extended-release tablets, and Catapres-TTS skin patches — are approved for this use, either alone or combined with other blood pressure medicines. Extended-release formulations — including Onyda XR oral suspension and clonidine hydrochloride extended-release tablets (such as Kapvay) — are approved to treat ADHD in children and teenagers ages 6 to 17, either on their own or alongside stimulant medications. Separately, clonidine injection products (Duraclon and others) are used alongside opioid pain medicines to treat severe cancer pain that opioids alone cannot control adequately.

Prenatal Vitamins has been studied for:

  • Cancer studied, not established Prenatal Vitamins has been studied for this. Natural Medicines rates the evidence: Insufficient Reliable Evidence To Rate Read what the research shows

    Prenatal Vitamins for cancer

    Population research has found that maternal use of prenatal vitamins during pregnancy is associated with 39% lower odds of the offspring developing leukemia, 27% lower odds of the offspring developing a brain tumor, and 47% lower odds of the offspring developing neuroblastoma by the age of 20 years when compared with the offspring of those that did not use prenatal vitamins.

    1 source cited
    1. 94815. Goh YI, Bollano E, Einarson TR, Koren G. Prenatal multivitamin supplementation and rates of pediatric cancers: a meta-analysis. Clin Pharmacol Ther. 2007 May;81(5):685-91. PubMed

Effectiveness ratings and the research summaries above are the verbatim record from the Natural Medicines database, which grades evidence from “Effective” down to “Insufficient Reliable Evidence To Rate”. A rating below the top of that scale means researchers have looked at it — not that it works, and never that it can stand in for a prescribed medicine. Do not stop or replace Clonidine on your own; if you are taking Prenatal Vitamins for the same health topic, tell your prescriber, especially if the medicine is being adjusted to a target.

From our Q&A

Questions About Prenatal Vitamins or Clonidine

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Prenatal Vitamins or Clonidine, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Clonidine

This page covers Prenatal Vitamins only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Clonidine page lists 138 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), American Hellebore (major), American Mistletoe (major), Tyramine (major) and Adrafinil (moderate).

By severity: 4 major · 113 moderate · 21 minor.

From our pharmacist’s overview on the Clonidine page

“American hellebore is the ingredient I would want a clonidine (Catapres) patient to know about first. Its alkaloids lower blood pressure even in small doses and slow the heart, both things clonidine already does, so the combination can drop someone dangerously low.”

Reviewed by 2 · Jul 18, 2026

Open the Clonidine interaction page

How much people look this up

Where Prenatal Vitamins and Clonidine Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Prenatal Vitamins
Steady interest

#1,210 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Clonidine
Top half

#1,185 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?
  • Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
  • Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Prenatal Vitamins reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Prenatal Vitamins and Clonidine records this page draws on were last updated July 11, 2026.
  • What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.
Data structure & sourcing designed and verified by .
Supplement

About Prenatal Vitamins

What is Prenatal Vitamins?

  • Nutritional support before and during pregnancy
  • Preventing neural tube defects (folic acid)
  • Supporting healthy fetal development
  • Preventing iron-deficiency anemia in pregnancy
  • Support during breastfeeding

Prenatal vitamins are multivitamin-mineral supplements designed to fill nutritional gaps before and during pregnancy and while breastfeeding, with folic acid and iron being especially important. They are widely recommended by doctors, but they do not replace a healthy diet, and you should choose a product and dose with guidance from your pharmacist or doctor.

Tablets, capsules, soft gels, chewables, gummies, liquids

An interaction check asks whether these two react with each other — it does not ask whether Prenatal Vitamins is a good idea for someone in your situation. Here is what our Prenatal Vitamins record says about it on its own.

Prenatal Vitamins: dosing

There is no single "correct" prenatal vitamin, since products differ in their ingredients and amounts. Most are taken once daily, but some require more than one tablet or a separate DHA softgel.

From our Prenatal Vitamins monograph — the full record covers uses, side effects and every documented interaction.

Read the full Prenatal Vitamins monograph & all interactions
Medication

About Clonidine

What Is Clonidine Used For?

Brand name: Catapres

Clonidine is used to treat high blood pressure (hypertension). Several products — including Clonidine Hydrochloride tablets, Javadin oral solution, Nexiclon XR extended-release tablets, and Catapres-TTS skin patches — are approved for this use, either alone or combined with other blood pressure medicines.

Extended-release formulations — including Onyda XR oral suspension and clonidine hydrochloride extended-release tablets (such as Kapvay) — are approved to treat ADHD in children and teenagers ages 6 to 17, either on their own or alongside stimulant medications. Separately, clonidine injection products (Duraclon and others) are used alongside opioid pain medicines to treat severe cancer pain that opioids alone cannot control adequately.

Most-Reported Side Effects for Clonidine

From FAERS, the FDA’s public side-effect reporting system (57,112 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Fatigue 3,519 reports
Nausea 3,475 reports
Headache 3,432 reports
Hypertension 3,275 reports
Dyspnea 2,748 reports
See full Clonidine drug information
Keep checking

Other Drugs & Prenatal Vitamins

Browse every other medication we’ve checked against Prenatal Vitamins — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major
0Moderate
0Minor
2,829No known interaction
2,829 No interaction
No interaction 2,829 drugs checked — show the list

We also checked Prenatal Vitamins against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Prenatal Vitamins list.

See the full Prenatal Vitamins interactions page
See every supplement checked against Clonidine, ranked by severity
Evidence & sources

Prenatal Vitamins References

The 18 references that drive our Prenatal Vitamins monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

  1. Dietary reference intakes (DRIs): estimated average requirements. Food and Nutrition Board, Institute of Medicine, National Academics. https://www.nal.usda.gov/sites/default/files/fnic_uploads//recommended_intakes_individuals.pdf Accessed July 24, 2017.
  2. Bentley S, Hermes A, Phillips D, Daoud YA, Hanna S. Comparative effectiveness of a prenatal medical food to prenatal vitamins on hemoglobin levels and adverse outcomes: a retrospective analysis. Clin Ther. 2011;33(2):204-10. PubMed
  3. Braun JM, Froehlich T, Kalkbrenner A. Brief report: are autistic-behaviors in children related to prenatal vitamin use and maternal whole blood folate concentrations? J Autism Dev Disord. 2014;44(10):2602-7. PubMed
  4. Dougan MM, Willett WC, Michels KB. Prenatal vitamin intake during pregnancy and offspring obesity. Int J Obes. 2015;39(1):69-74. PubMed
  5. Sauder KA, Starling AP, Shapiro AL, et al. Exploring the association between maternal prenatal multivitamin use and early infant growth: The Healthy Start Study. Pediatr Obes. 2016;11(5):434-41. PubMed
  6. Riley LE, Stark AR, Kilpatrick SJ, et al. Guidelines for Perinatal Care. 7th ed. Washington, DC: The American Academy of Pediatrics and the American College of Obstetricians and Gynecologists; 2012.
  7. Czeizel AE, Dudás I. Prevention of the first occurrence of neural-tube defects by periconceptional vitamin supplementation. N Engl J Med. 1992;327(26):1832-5. PubMed
  8. Czeizel AE. Prevention of congenital abnormalities by periconceptional multivitamin supplementation. BMJ. 1993;306(6893):1645-8. PubMed
  9. Scholl TO, Hediger ML, Bendich A, et al. Use of multivitamin/mineral prenatal supplements: influence on the outcome of pregnancy. Am J Epidemiol. 1997;146(2):134-41. PubMed
  10. Goh YI, Bollano E, Einarson TR, Koren G. Prenatal multivitamin supplementation and rates of pediatric cancers: a meta-analysis. Clin Pharmacol Ther. 2007 May;81(5):685-91. PubMed
  11. Goh YI, Bollano E, Einarson TR, Koren G. Prenatal multivitamin supplementation and rates of congenital anomalies: a meta-analysis. J Obstet Gynaecol Can. 2006 Aug;28(8):680-9. Review. PubMed
  12. Balogun OO, da Silva Lopes K, Ota E, et al. Vitamin supplementation for preventing miscarriage. Cochrane Database Syst Rev. 2016 May 6;(5):CD004073. PubMed
  13. Dean SV, Lassi ZS, Imam AM, Bhutta ZA. Preconception care: nutritional risks and interventions. Reprod Health. 2014;11 Suppl 3:S3. PubMed
  14. Virk J, Liew Z, Olsen J, Nohr EA, Catov JM, Ritz B. Pre-conceptual and prenatal supplementary folic acid and multivitamin intake, behavioral problems, and hyperkinetic disorders: A study based on the Danish National Birth Cohort (DNBC). Nutr Neurosci. 201 PubMed
  15. Wolf HT, Hegaard HK, Huusom LD, Pinborg AB. Multivitamin use and adverse birth outcomes in high-income countries: a systematic review and meta-analysis. Am J Obstet Gynecol. 2017;217(4):404.e1-404.e30. PubMed

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Prenatal Vitamins and Clonidine Together: Common Questions

Is it safe to take Prenatal Vitamins with Clonidine?
We do not list a known interaction between Prenatal Vitamins and Clonidine. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.
Are Prenatal Vitamins and Clonidine used for the same thing?
They overlap in purpose, which usually means the real question is whether you need both rather than whether they are safe together. This page lists the shared uses and how strong the evidence is for Prenatal Vitamins in each. That is a conversation for your prescriber, especially if Clonidine is being adjusted to a target.
Does Clonidine interact with any supplements?
Yes. Clonidine has documented interactions with 138 supplements in our database — Prenatal Vitamins is not one of them. The Clonidine interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

Prenatal Vitamins monograph Uses, safety profile, and every drug interaction in one place Clonidine drug information The full plain-English guide to this medication Clonidine supplement interactions Every supplement checked against Clonidine, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 18 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Clonidine and Prenatal Vitamins?

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.