Drug × supplement reference

Medication × supplement interactions

When you take a prescription medication, the next question is usually what supplements interact with it. Each page lists supplements to avoid, take with caution, simply monitor, and ones that may complement the medication. PMIDs cited; not medical advice — always discuss any supplement change with a qualified clinician.

Dihydropyridine calcium channel blocker

Amlodipine and supplements: interactions, cautions, and safe stacks

Amlodipine and supplements: which to avoid (St John's wort), which to watch (grapefruit, hawthorn, berberine, piperine), and which are safe or supportive (magnesium, CoQ10). Independent,…

Updated 2026-05-13
Gabapentinoid · anticonvulsant / neuropathic pain

Gabapentin and supplements: interactions, cautions, and safe stacks

Gabapentin and supplements: divalent-cation chelation (magnesium, calcium, iron), additive CNS sedation (kava, valerian, CBD), and why most CYP-modulating supplements actually don't matter here.…

Updated 2026-05-13
GLP-1 receptor agonist · type 2 diabetes / weight management

Semaglutide and supplements: interactions, cautions, and safe stacks

Semaglutide and supplements: delayed gastric emptying changes how everything is absorbed, and rapid weight loss creates real micronutrient and lean-mass concerns. Which supplements actually help…

Updated 2026-05-13
SSRI · serotonergic antidepressant

Sertraline and supplements: interactions, cautions, and safe stacks

Sertraline and supplements: which serotonergic supplements to avoid (5-HTP, L-tryptophan, SAMe, St John's wort), which to discuss with a psychiatrist (saffron, rhodiola), and what's actually safe…

Updated 2026-05-13
Atypical opioid · serotonin–norepinephrine reuptake inhibitor

Tramadol and supplements: interactions, cautions, and safe stacks

Tramadol's dual opioid+SNRI mechanism makes serotonergic and sedative supplements especially dangerous. Why 5-HTP, L-tryptophan, SAMe, St John's wort, saffron, rhodiola, kratom, and kava deserve…

Updated 2026-05-13
Drug interaction

Bupropion and supplements: interactions, cautions, and safe stacks

Bupropion (Wellbutrin, Zyban) and supplements: what to avoid (St John

Updated 2026-05-20
Drug interaction

Fluoxetine and supplements: interactions, cautions, and safe stacks

Fluoxetine (Prozac, Sarafem) and supplements: serotonin-syndrome risks (5-HTP, L-tryptophan, SAMe, St John

Updated 2026-05-20
Drug interaction

Furosemide and supplements: interactions, cautions, and safe stacks

Furosemide (Lasix) and supplements: what to avoid (high-dose licorice), what to watch (potassium, hibiscus, dandelion, horsetail, uva ursi), and what

Updated 2026-05-20
Drug interaction

Hydrochlorothiazide and supplements: interactions, cautions, and safe stacks

Hydrochlorothiazide (HCTZ) and supplements: what to avoid (high-dose licorice), what to watch (calcium, vitamin D3, potassium, caffeine, hibiscus, St John

Updated 2026-05-20
Drug interaction

Prednisone and supplements: interactions, cautions, and safe stacks

Prednisone and supplements: what to avoid (echinacea, astragalus, high-dose licorice), what to watch (curcumin, berberine, St John

Updated 2026-05-20

More medication × supplement pages coming. New drugs are added weekly from a rotation of the top-50 most-prescribed medications. How we build these pages →

All medication × supplement pages (5)