Suggested Dosing
Diabetes Type 1 & 2
1-6 grams (1 teaspoon = 4.75 grams) of cassia cinnamon PO qD for up to 4 months
Dried Bark
2-6 g/d PO
Tincture
3-7 mL PO TID
Essential Oil
0.05-0.2 mL/d
Suggested Uses
Diabetes, GI antispasmodic/antiflatulent, diarrhea, dysmenorrhea
Cold, influenza, general antimicrobial (essential oil)
Efficacy
Placebo-controlled human trial demonstrated decr blood glucose, triglycerides, LDL, total cholesterol in type 2 diabetes (dose-dependent: 6 g/d most effective)
Possibly effective as antispasmodic
Interactions
Interaction Checker
No Results

Contraindicated
Serious - Use Alternative
Significant - Monitor Closely
Minor

Contraindicated (0)
Serious - Use Alternative (0)
Monitor Closely (96)
- acarbose
cinnamon increases effects of acarbose by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- aceclofenac
aceclofenac and cinnamon both increase anticoagulation. Use Caution/Monitor.
- acemetacin
acemetacin and cinnamon both increase anticoagulation. Use Caution/Monitor.
- agrimony
agrimony and cinnamon both increase anticoagulation. Use Caution/Monitor.
- albiglutide
cinnamon increases effects of albiglutide by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- alfalfa
alfalfa and cinnamon both increase anticoagulation. Use Caution/Monitor.
- alteplase
alteplase and cinnamon both increase anticoagulation. Use Caution/Monitor. In theory, cinnamon may interact with blood-thinning medications due to the presence of coumarin.
- American ginseng
American ginseng and cinnamon both increase anticoagulation. Use Caution/Monitor.
- antithrombin alfa
antithrombin alfa and cinnamon both increase anticoagulation. Modify Therapy/Monitor Closely.
- antithrombin III
antithrombin III and cinnamon both increase anticoagulation. Modify Therapy/Monitor Closely.
- argatroban
argatroban and cinnamon both increase anticoagulation. Modify Therapy/Monitor Closely.
- aspirin
aspirin and cinnamon both increase anticoagulation. Use Caution/Monitor.
- aspirin rectal
aspirin rectal and cinnamon both increase anticoagulation. Use Caution/Monitor.
- aspirin/citric acid/sodium bicarbonate
aspirin/citric acid/sodium bicarbonate and cinnamon both increase anticoagulation. Use Caution/Monitor.
- bemiparin
bemiparin and cinnamon both increase anticoagulation. Modify Therapy/Monitor Closely.
- bivalirudin
bivalirudin and cinnamon both increase anticoagulation. Modify Therapy/Monitor Closely.
- celecoxib
celecoxib and cinnamon both increase anticoagulation. Use Caution/Monitor.
- chlorpropamide
cinnamon increases effects of chlorpropamide by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- choline magnesium trisalicylate
choline magnesium trisalicylate and cinnamon both increase anticoagulation. Use Caution/Monitor.
- cordyceps
cinnamon and cordyceps both increase anticoagulation. Use Caution/Monitor.
- dabigatran
dabigatran and cinnamon both increase anticoagulation. Modify Therapy/Monitor Closely.
- dalteparin
dalteparin and cinnamon both increase anticoagulation. Modify Therapy/Monitor Closely.
- diclofenac
diclofenac and cinnamon both increase anticoagulation. Use Caution/Monitor.
- diflunisal
diflunisal and cinnamon both increase anticoagulation. Use Caution/Monitor.
- dong quai
cinnamon and dong quai both increase anticoagulation. Use Caution/Monitor.
- enoxaparin
enoxaparin and cinnamon both increase anticoagulation. Modify Therapy/Monitor Closely.
- epoprostenol
cinnamon and epoprostenol both increase anticoagulation. Use Caution/Monitor.
- etodolac
etodolac and cinnamon both increase anticoagulation. Use Caution/Monitor.
- exenatide injectable solution
cinnamon increases effects of exenatide injectable solution by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- exenatide injectable suspension
cinnamon increases effects of exenatide injectable suspension by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- fennel
cinnamon and fennel both increase anticoagulation. Use Caution/Monitor.
- fenoprofen
fenoprofen and cinnamon both increase anticoagulation. Use Caution/Monitor.
- feverfew
cinnamon and feverfew both increase anticoagulation. Use Caution/Monitor.
- flurbiprofen
flurbiprofen and cinnamon both increase anticoagulation. Use Caution/Monitor.
- fondaparinux
fondaparinux and cinnamon both increase anticoagulation. Modify Therapy/Monitor Closely.
- forskolin
cinnamon and forskolin both increase anticoagulation. Use Caution/Monitor.
- garlic
cinnamon and garlic both increase anticoagulation. Use Caution/Monitor.
- ginger
cinnamon and ginger both increase anticoagulation. Use Caution/Monitor.
- ginkgo biloba
cinnamon and ginkgo biloba both increase anticoagulation. Use Caution/Monitor.
- glimepiride
cinnamon increases effects of glimepiride by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- glipizide
cinnamon increases effects of glipizide by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- glyburide
cinnamon increases effects of glyburide by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- heparin
heparin and cinnamon both increase anticoagulation. Modify Therapy/Monitor Closely.
- horse chestnut seed
cinnamon and horse chestnut seed both increase anticoagulation. Use Caution/Monitor.
- ibuprofen
ibuprofen and cinnamon both increase anticoagulation. Use Caution/Monitor.
- ibuprofen IV
ibuprofen IV and cinnamon both increase anticoagulation. Use Caution/Monitor.
- indomethacin
indomethacin and cinnamon both increase anticoagulation. Use Caution/Monitor.
- insulin aspart
cinnamon increases effects of insulin aspart by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- insulin detemir
cinnamon increases effects of insulin detemir by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- insulin glargine
cinnamon increases effects of insulin glargine by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- insulin glulisine
cinnamon increases effects of insulin glulisine by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- insulin lispro
cinnamon increases effects of insulin lispro by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- insulin NPH
cinnamon increases effects of insulin NPH by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- insulin regular human
cinnamon increases effects of insulin regular human by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- ketoprofen
ketoprofen and cinnamon both increase anticoagulation. Use Caution/Monitor.
- ketorolac
ketorolac and cinnamon both increase anticoagulation. Use Caution/Monitor.
- ketorolac intranasal
ketorolac intranasal and cinnamon both increase anticoagulation. Use Caution/Monitor.
- liraglutide
cinnamon increases effects of liraglutide by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- lornoxicam
lornoxicam and cinnamon both increase anticoagulation. Use Caution/Monitor.
- meclofenamate
meclofenamate and cinnamon both increase anticoagulation. Use Caution/Monitor.
- mefenamic acid
mefenamic acid and cinnamon both increase anticoagulation. Use Caution/Monitor.
- meloxicam
meloxicam and cinnamon both increase anticoagulation. Use Caution/Monitor.
- metformin
cinnamon increases effects of metformin by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- miglitol
cinnamon increases effects of miglitol by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- mistletoe
cinnamon increases and mistletoe decreases anticoagulation. Effect of interaction is not clear, use caution. Use Caution/Monitor.
- nabumetone
nabumetone and cinnamon both increase anticoagulation. Use Caution/Monitor.
- naproxen
naproxen and cinnamon both increase anticoagulation. Use Caution/Monitor.
- nateglinide
cinnamon increases effects of nateglinide by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- nettle
cinnamon increases and nettle decreases anticoagulation. Effect of interaction is not clear, use caution. Use Caution/Monitor.
- oxaprozin
oxaprozin and cinnamon both increase anticoagulation. Use Caution/Monitor.
- panax ginseng
cinnamon and panax ginseng both increase anticoagulation. Use Caution/Monitor.
- parecoxib
parecoxib and cinnamon both increase anticoagulation. Use Caution/Monitor.
- pau d'arco
cinnamon and pau d'arco both increase anticoagulation. Use Caution/Monitor.
- phenindione
phenindione and cinnamon both increase anticoagulation. Modify Therapy/Monitor Closely.
- phytoestrogens
cinnamon and phytoestrogens both increase anticoagulation. Use Caution/Monitor.
- pioglitazone
cinnamon increases effects of pioglitazone by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- piroxicam
piroxicam and cinnamon both increase anticoagulation. Use Caution/Monitor.
- protamine
protamine and cinnamon both increase anticoagulation. Modify Therapy/Monitor Closely.
- reishi
cinnamon and reishi both increase anticoagulation. Use Caution/Monitor.
- repaglinide
cinnamon increases effects of repaglinide by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- reteplase
reteplase and cinnamon both increase anticoagulation. Modify Therapy/Monitor Closely.
- rosiglitazone
cinnamon increases effects of rosiglitazone by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- salicylates (non-asa)
salicylates (non-asa) and cinnamon both increase anticoagulation. Use Caution/Monitor.
- salsalate
salsalate and cinnamon both increase anticoagulation. Use Caution/Monitor.
- saxagliptin
cinnamon increases effects of saxagliptin by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- Siberian ginseng
cinnamon and Siberian ginseng both increase anticoagulation. Use Caution/Monitor.
- sitagliptin
cinnamon increases effects of sitagliptin by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- sulfasalazine
sulfasalazine and cinnamon both increase anticoagulation. Use Caution/Monitor.
- sulindac
sulindac and cinnamon both increase anticoagulation. Use Caution/Monitor.
- tenecteplase
tenecteplase and cinnamon both increase anticoagulation. Modify Therapy/Monitor Closely.
- tolazamide
cinnamon increases effects of tolazamide by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- tolbutamide
cinnamon increases effects of tolbutamide by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
- tolfenamic acid
tolfenamic acid and cinnamon both increase anticoagulation. Use Caution/Monitor.
- tolmetin
tolmetin and cinnamon both increase anticoagulation. Use Caution/Monitor.
- turmeric
cinnamon and turmeric both increase anticoagulation. Use Caution/Monitor.
- vildagliptin
cinnamon increases effects of vildagliptin by pharmacodynamic synergism. Use Caution/Monitor. Potential for hypoglycemia.
Minor (3)
- anamu
anamu and cinnamon both increase anticoagulation. Minor/Significance Unknown.
- danshen
cinnamon and danshen both increase anticoagulation. Minor/Significance Unknown.
- devil's claw
cinnamon and devil's claw both increase anticoagulation. Minor/Significance Unknown.
Adverse Effects
Frequency Not Defined
Essential oil may irritate mucous membranes
Excessive doses may cause hypoglycemia
Warnings
Contraindications
Hypersensitivity
Pregnancy (> amounts found in food)
Cautions
Most preparations contain cassia cinnamon, a coumarin-containing variety
Pregnancy & Lactation
Pregnancy Category: N/A
Lactation: N/A
Pregnancy Categories
A: Generally acceptable. Controlled studies in pregnant women show no evidence of fetal risk.
B: May be acceptable. Either animal studies show no risk but human studies not available or animal studies showed minor risks and human studies done and showed no risk. C: Use with caution if benefits outweigh risks. Animal studies show risk and human studies not available or neither animal nor human studies done. D: Use in LIFE-THREATENING emergencies when no safer drug available. Positive evidence of human fetal risk. X: Do not use in pregnancy. Risks involved outweigh potential benefits. Safer alternatives exist. NA: Information not available.Pharmacology
Metabolism: N/A
Excretion: N/A
Mechanism of Action
Cinnamic Acid - hypoglycemic properties
Volatile (essential) oils demonstrate antimicrobial activity in vitro, & decrease smooth muscle spasm
Tannins are astringent (anti-hemorrhagic)