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Forskolin Side Effects & Safety

Evidence:Preliminary
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This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer

Safety Profile

Overall safety rating: Generally Safe

Potential Side Effects

  • May lower blood pressure (cAMP causes vasodilation)
  • Increased heart rate in some users
  • Diarrhea at higher doses
  • Headache in rare cases

Drug & Supplement Interactions

  • Blood pressure medications — may enhance hypotensive effects
  • Blood thinners — forskolin has antiplatelet effects; use caution
  • Calcium channel blockers — additive vasodilatory effects

Maximum Dose

Do not exceed: 500 mg/day of 10% extract (50 mg forskolin); higher doses not well studied

Full Forskolin Guide

References

  1. RCTGodard MP, Johnson BA, Richmond SR (2005). Body composition and hormonal adaptations associated with forskolin consumption in overweight and obese men. Obesity Research. DOI PubMed
  2. RCTNederveen JP, Mastrolonardo AJ, Xhuti D, Di Carlo A, et al. (2023). Novel Multi-Ingredient Supplement Facilitates Weight Loss and Improves Body Composition in Overweight and Obese Individuals: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial.. Nutrients. DOI PubMed
  3. ReviewLoskutova E, O'Brien C, Loskutov I, Loughman J (2019). Nutritional supplementation in the treatment of glaucoma: A systematic review.. Survey of ophthalmology. DOI PubMed
  4. RCTMutolo MG, Albanese G, Rusciano D, Pescosolido N (2016). Oral Administration of Forskolin, Homotaurine, Carnosine, and Folic Acid in Patients with Primary Open Angle Glaucoma: Changes in Intraocular Pressure, Pattern Electroretinogram Amplitude, and Foveal Sensitivity.. Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics. DOI PubMed
  5. RCTNebbioso M, Rusciano D, Pucci B, Zicari AM, et al. (2013). Treatment of glaucomatous patients by means of food supplement to reduce the ocular discomfort: a double blind randomized trial.. European review for medical and pharmacological sciences. PubMed
  6. Vetrugno M, Uva MG, Russo V, Iester M, et al. (2012). Oral administration of forskolin and rutin contributes to intraocular pressure control in primary open angle glaucoma patients under maximum tolerated medical therapy.. Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics. DOI PubMed
  7. Newman ME, Lerer B, Lichtenberg P, Shapira B (1992). Platelet adenylate cyclase activity in depression and after clomipramine and lithium treatment: relation to serotonergic function.. Psychopharmacology. DOI PubMed