Slimfast Diet + Lamivudine
Lamivudine brand names: Epivir, Epivir-HBV.
We found no known interaction between Slimfast Diet and Lamivudine 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.
Slimfast Diet and Lamivudine
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 Lamivudine and Slimfast Diet in our sources. This does not guarantee that the combination is completely free of risk — research on Slimfast Diet alongside specific medications may be limited.
Worth understanding: our licensed dataset holds no drug-interaction record for Slimfast Diet at all — not against Lamivudine, 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.
Slimfast Diet is an eating pattern rather than something you take. Ask your pharmacist or doctor before changing how you eat while on a prescribed medicine: some medicines are dosed around meals, and a change in diet can change how they work. 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.
Slimfast Diet safety at a glance
Safety guidance is general; always confirm with your pharmacist or doctor for your situation.
See Every Supplement That Interacts With Lamivudine
This page covers Slimfast Diet only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Lamivudine page lists 18 supplements it has a documented interaction with, worst first, each one explained.
The most serious there right now: Activated Charcoal (major), Coffee Charcoal (moderate), European Mandrake (moderate), Glucomannan (moderate) and Guar Gum (moderate).
By severity: 1 major · 8 moderate · 9 minor.
From our pharmacist’s overview on the Lamivudine page
“Lamivudine (Epivir, Epivir-HBV) only holds HIV or hepatitis B in check if enough of each dose reaches the bloodstream, and nearly all 18 supplements on this list can interfere with exactly that. Activated charcoal, the single major-rated entry, can adsorb the drug outright, while fibers, gums, and mucilage herbs such as psyllium can sl…”
Reviewed by 2 · Jul 18, 2026
Where Slimfast Diet and Lamivudine 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.
#1,218 of 1,452 supplements looked up here in the last 7 days
#2,479 of 2,830 medications looked up here in the last 7 days
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 Slimfast Diet reference on this page ↓
- Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Slimfast Diet and Lamivudine records this page draws on were last updated June 22, 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.
About Slimfast Diet
What is Slimfast Diet?
- Weight loss
- Weight maintenance
- Meal replacement
- Calorie control
- Convenient on-the-go nutrition
SlimFast is a commercial brand of meal-replacement shakes, bars, and snacks designed to help with weight loss by controlling daily calories. It is not an herb or single supplement, and while structured meal-replacement plans can help some people lose weight in the short term, long-term success depends on overall diet and lifestyle. Talk with your doctor or pharmacist before starting if you have a medical condition such as diabetes.
Not applicable (commercial meal-replacement product, not a plant) · Ready-to-drink shakes, shake powders, meal-replacement bars, and snack products
An interaction check asks whether these two react with each other — it does not ask whether Slimfast Diet is a good idea for someone in your situation. Here is what our Slimfast Diet record says about it on its own.
Slimfast Diet: dosing
There is no medicinal "dose" for SlimFast because it is a food product. Instead, follow the plan and serving sizes printed on the product label. A common approach is replacing one or two meals a day with a SlimFast shake or bar, eating one balanced meal, and having a small snack or two.Drink plenty of water and aim to keep your overall diet balanced.
From our Slimfast Diet monograph — the full record covers uses, side effects and every documented interaction.
About Lamivudine
What Is Lamivudine Used For?
Brand names: Epivir, Epivir-HBV
Lamivudine is used to treat HIV-1 infection. Epivir (lamivudine) tablets and oral solution, and lamivudine tablets and oral solution for HIV-1, are all used in combination with other antiretroviral medicines — lamivudine is never used alone for HIV-1. The dose in these products is specifically sized for HIV-1 treatment and is not appropriate for treating hepatitis B.
A separate, lower-dose product — lamivudine tablets (HBV) — is indicated for the treatment of chronic hepatitis B virus (HBV) infection in adults with evidence of active viral replication and liver inflammation. Because resistance to lamivudine develops at a high rate, the HBV tablets should only be considered when other antiviral options with a higher barrier to resistance are not available or appropriate.
Other Drugs & Slimfast Diet
Browse every other medication we’ve checked against Slimfast Diet — both the ones with a known interaction and the ones without. Select any drug for the full detail.
No drugs match “”.
No interaction 2,829 drugs checked — show the list
We also checked Slimfast Diet against these medications and found no known interaction in our sources. Open any page to confirm.
- Apixaban ›
- Levothyroxine ›
- Amlodipine ›
- Methylphenidate ›
- Warfarin ›
- Sertraline ›
- Losartan Potassium ›
- Testosterone ›
- Ivermectin ›
- Abemaciclib ›
- Aspirin ›
- Metoprolol ›
- Acetaminophen ›
- Rosuvastatin ›
- Rivaroxaban ›
- Escitalopram ›
- Clopidogrel ›
- Atorvastatin ›
- Tadalafil ›
- Docusate ›
- Tirzepatide ›
- Ibuprofen ›
- Methamphetamine ›
- Hydroxyurea ›
- Warfarin Sodium ›
- Valacyclovir ›
- Sumatriptan ›
- Semaglutide ›
- Prednisone ›
- Lisdexamfetamine ›
- Propranolol ›
- Metformin ›
- Amitriptyline ›
- Amoxicillin ›
- Lisinopril ›
- Isotretinoin ›
- Methotrexate ›
- Amlodipine Besylate ›
- Bendamustine ›
- Bupropion ›
- Amphetamine ›
- Fluoxetine ›
- Doxycycline ›
- Acyclovir ›
- Azithromycin ›
- Lamotrigine ›
- Pregabalin ›
- Dextroamphetamine ›
- Gabapentin ›
- Acetaminophen, Codeine ›
- Quetiapine ›
- Clonazepam ›
- Levothyroxine, Liothyronine ›
- Naproxen ›
- Omeprazole ›
- Letrozole ›
- Methylene Blue ›
- Duloxetine ›
- Buspirone ›
- Citalopram ›
Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Slimfast Diet list.
Slimfast Diet References
The 6 references that drive our Slimfast Diet 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.
- Pritchett AM, Deswal A, Aguilar D, et al. Lifestyle Modification with Diet and Exercise in Obese Patients with Heart Failure - A Pilot Study. J Obes Weight Loss Ther. 2012 Mar 1;2(2):1-8. PubMed
- Berkowitz RI, Wadden TA, Gehrman CA, et al. Meal replacements in the treatment of adolescent obesity: a randomized controlled trial. Obesity (Silver Spring). 2011 Jun;19(6):1193-9. PubMed
- Morgan LM, Griffin BA, Millward DJ, et al. Comparison of the effects of four commercially available weight-loss programmes on lipid-based cardiovascular risk factors. Public Health Nutr. 2009 Jun;12(6):799-807. PubMed
- Truby H, Baic S, deLooy A, et al. Randomised controlled trial of four commercial weight loss programmes in the UK: initial findings from the BBC "diet trials." BMJ. 2006 Jun 3;332(7553):1309-14. PubMed
- Noakes M, Foster PR, Keogh JB, Clifton PM. Meal replacements are as effective as structured weight-loss diets for treating obesity in adults with features of metabolic syndrome. J Nutr. 2004 Aug;134(8):1894-9. PubMed
- Yip I, Go VL, DeShields S, et al. Liquid meal replacements and glycemic control in obese type 2 diabetes patients. Obes Res. 2001 Nov;9 Suppl 4:341S-347S. 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.
Following Slimfast Diet While Taking Lamivudine: Common Questions
Is it safe to follow Slimfast Diet while taking Lamivudine?
Does Lamivudine interact with any supplements?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
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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.