Herb Pharm Damiana

Our assessment

The evidence shows that Damiana is a plant-based supplement, but data on its specific effects is limited. Our assessment is that you should be cautious, as the only detailed data available is for a different ingredient, Calcium [NIH ODS].

How it works

Think of calcium as a structural and signaling mineral — it supports bone density and mineralization, and helps with muscle relaxation and nerve signaling [NIH ODS]. Damiana’s mechanism of action is not covered by the provided data, so its specific effects are unknown.

Safety profile

FDA received 592,059 total adverse event reports for all supplements, but no specific reports are provided for Damiana. For calcium, high intakes can cause constipation, nausea, weight loss, extreme tiredness, and abnormal heart rhythms [NIH ODS]. Calcium can also reduce absorption of medications like bisphosphonates, tetracycline antibiotics, and levothyroxine [NIH ODS].

Our recommendation

Data not available for Damiana’s specific benefits or risks. We recommend you consult with your healthcare provider before starting this supplement, as the data provided does not support a clear recommendation for use [NIH ODS] [FDA data].

Supplement labels contain several key sections regulated by the FDA:

• Serving Size — The recommended amount per dose. Always check this — some products require multiple capsules per serving.
• Amount Per Serving — Shows the quantity of each nutrient in the product, typically in IU (International Units), mg (milligrams), or mcg (micrograms).
• % Daily Value (%DV) — Indicates how much a nutrient in a serving contributes to a daily diet. 5% DV or less is low; 20% DV or more is high.
• Other Ingredients — Lists inactive ingredients like fillers, binders, and capsule materials (e.g., gelatin, cellulose, magnesium stearate).
• Suggested Use — The manufacturer's recommended directions for taking the supplement, including timing and dosage.

Source: FDA Dietary Supplement Labeling Guide