Cayenne (Capsicum annuum)
Overview
Cayenne (Capsicum frutescens) is a tropical pepper renowned for its hot, pungent taste and powerful warming action. Medicinally, it is noted for stimulating circulation throughout the body, strengthening the heartbeat, and supporting healing by improving blood supply to tissues. Cayenne is sometimes considered a “cure-all” in Western herbal traditions due to its broad impact on circulation and tissue repair. It also has analgesic properties, thanks to capsaicin, which depletes substance P (a pain mediator), thereby reducing discomfort in conditions like neuralgia or arthritis.
Traditional uses & properties
Circulatory Stimulant & Hemostatic: Encourages blood flow and can help control bleeding in some contexts. Analgesic (Anodyne): Applied externally, capsaicin relieves certain kinds of pain. Carminative & Diaphoretic: Aids digestion (relieving gas) and can promote perspiration to support fever reduction. Counterirritant: Used in topical preparations for rheumatic and arthritic aches.
Preparations & dosage
Add a pinch of cayenne powder or cayenne sauce to every main meal. Tablets are also a convenient method for long-term use.
Safety & precautions
Irritating Nature: Large doses can irritate the stomach, intestines, and skin, leading to painful bowel movements or a burning sensation. Topical Use: Contact with eyes, sinuses, or other sensitive areas can be extremely painful; use caution. Avoid in Hemorrhoids / Anal Fissures: Can exacerbate discomfort. ACE Inhibitor Cough: May worsen coughs triggered by ACE inhibitor medications. Build Tolerance: It’s generally recommended to start with very small amounts if ingesting it for medicinal reasons.
Drug & food interactions
Capsicum has the potential to decrease the absorption of aspirin, increase the absorption of ciprofloxacin and theophylline, and alter the absorption of cefalexin and digoxin. However, the clinical effects of these changes are unknown, not established or not clinically significant. Capsicum may also decrease the metabolism of pentobarbital and phenazone, but it does not alter the metabolism of theophylline or quinine, which suggests that it has selective effects on hepatic enzymes.
The information regarding the use of capsicum with quinine is based on experimental evidence only. No interactions found.
The interaction between capsicum and aspirin is based on experimental evidence only. No interactions found.
The interaction between capsicum and cefalexin is based on experimental evidence only. No interactions found.
The interaction between capsicum and pentobarbital is based on experimental evidence only. No interactions found.
No interactions found. Capsicum is widely used as a spice in food.
Although capsicum may slightly increase the absorption of theophylline, it does not appear to be clinically relevant. A study in 6 healthy subjects found that the absorption of theophylline 400 to 500 mg was increased after they ate a spicy meal, when compared with a European standard meal: the AUC0–6 and AUC0–12 were increased by 23% and 15%, respectively
No interactions found.
The interaction between capsicum and digoxin is based on experimental evidence only. No interactions found.
Capsicum modestly reduces the absorption of dietary iron. In a randomised, crossover study, 30 healthy women were given a standard Thai meal (fortified with about 4 mg of isotopically labelled ferrous sulfate), with soup, to which 4.2 g of ground Capsicum annuum had been added. Capsicum annuum reduced iron absorption by about 38%.
The interaction between capsicum and phenazone is based on experimental evidence only. No interactions found.
The interaction between capsicum and ciprofloxacin is based on experimental evidence only. No interactions found.
Habitat
Native to the tropical regions of the Americas, cayenne now grows worldwide in warm, moist climates, including Africa and India. Typically started from seed in early spring, the plant produces conical red fruits (peppers) harvested in summer once fully ripe and then dried in the shade.
Traditionally used for
Related herbs
- Dong Quai (Angelica sinensis)
Dong quai (Angelica sinensis) is a stout, upright perennial growing to about 6½ ft (2 m), often described as the “women’s ginseng” in China. It serves as a key female tonic in Traditional Chinese Medicine (TCM), helping to build and enrich the blood, support menstrual health, and improve circulation—especially in the pelvic region. The rhizome has a strong, sweet, pungent aroma and is frequently used in cooking for its tonic benefits.
- Ginkgo (Ginkgo biloba)
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