Indian long pepper
Indian long pepper

Background

Indian long pepper (Piper longum) is a plant found in Southern Asia. Its fruit and root are used in Ayurvedic medicine and as a spice in foods.

Indian long pepper fruit and root contain chemicals that might help kill certain parasites and reduce swelling. One of these chemicals is called piperine. When taken by mouth, piperine seems to allow some drugs and other substances to be better absorbed by the body.

People use Indian long pepper for asthma, lung problems, arthritis, heart disease, common cold, cough, indigestion, stress, and many other conditions, but there is no good scientific evidence to support these uses.

Don't confuse Indian long pepper with other types of peppers, including black pepper, capsicum, and white pepper. These are not the same.
When taken by mouth: Indian long pepper fruit is commonly consumed in foods. But there isn't enough reliable information to know if Indian long pepper is safe or what the side effects might be when used in larger amounts as medicine.

Special Precautions & Warnings:

Pregnancy and breast-feeding: Indian long pepper fruit is commonly consumed in foods. But there isn't enough reliable information to know if Indian long pepper is safe to use as medicine when pregnant or breast-feeding. Stay on the safe side and avoid use.

Bleeding conditions: Indian long pepper might slow blood clotting. Taking Indian long pepper in amounts greater than those found in foods might increase the risk of bleeding in people with bleeding disorders.

Surgery: Indian long pepper might slow blood clotting and affect blood sugar levels. Taking Indian long pepper in amounts greater than those found in foods might cause bleeding complications or affect blood sugar levels during surgery. Stop taking Indian long pepper at least 2 weeks before surgery.

Effectiveness

There is interest in using Indian long pepper for a number of purposes, but there isn't enough reliable information to say whether it might be helpful.
Likely effective Effectiveness definitions
Possibly effective Effectiveness definitions
Likely ineffective Effectiveness definitions
Possibly ineffective Effectiveness definitions
Insufficient evidence Effectiveness definitions

Dosing & administration

There isn't enough reliable information to know what an appropriate dose of Indian long pepper might be. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult a healthcare professional before using.

Interactions with pharmaceuticals

Amoxicillin (Amoxil, Trimox)

Interaction Rating=Minor Be watchful with this combination.

Indian long pepper contains a chemical called piperine. Piperine might increase the amount of amoxicillin absorbed by the body. This might increase the effects and side effects of amoxicillin. But it's not clear if this is a big concern.

Carbamazepine (Tegretol)

Interaction Rating=Minor Be watchful with this combination.

Indian long pepper contains a chemical called piperine. Piperine might increase the amount of carbamazepine absorbed by the body. This might increase the chance of side effects. But it's not clear if this is a big concern.

Cefotaxime (Claforan)

Interaction Rating=Minor Be watchful with this combination.

Indian long pepper contains a chemical called piperine. Piperine might increase levels of cefotaxime in the blood. This might increase the effects and side effects of cefotaxime. But it's not clear if this is a big concern.

Cyclosporine (Neoral, Sandimmune)

Interaction Rating=Moderate Be cautious with this combination.

Indian long pepper contains a chemical called piperine. Piperine might increase levels of cyclosporine in the body. This might increase the effects and side effects of cyclosporine. But it's not clear if this is a big concern.

Medications changed by the liver (Cytochrome P450 3A4 (CYP3A4) substrates)

Interaction Rating=Moderate Be cautious with this combination.

Some medications are changed and broken down by the liver. Indian long pepper might change how quickly the liver breaks down these medications. This could change the effects and side effects of these medications.

Medications for diabetes (Antidiabetes drugs)

Interaction Rating=Moderate Be cautious with this combination.

Indian long pepper might lower blood sugar levels. Taking Indian long pepper along with diabetes medications might cause blood sugar to drop too low. Monitor your blood sugar closely.

Medications moved by pumps in cells (P-glycoprotein substrates)

Interaction Rating=Moderate Be cautious with this combination.

Some medications are moved in and out of cells by pumps. Indian long pepper might change how these pumps work and change how much medication stays in the body. In some cases, this might change the effects and side effects of a medication.

Medications that slow blood clotting (Anticoagulant / Antiplatelet drugs)

Interaction Rating=Moderate Be cautious with this combination.

Indian long pepper might slow blood clotting. Taking Indian long pepper along with medications that also slow blood clotting might increase the risk of bruising and bleeding.

Nevirapine (Viramune)

Interaction Rating=Moderate Be cautious with this combination.

Indian long pepper contains a chemical called piperine. Piperine might increase levels of nevirapine in the body. Taking Indian long pepper with nevirapine might increase the effects and side effects of nevirapine. But it's not clear if this is a big concern.

Pentobarbital (Nembutal)

Interaction Rating=Moderate Be cautious with this combination.

Indian long pepper contains a chemical called piperine. The piperine in Indian long pepper might increase the sleepiness caused by pentobarbital.

Phenytoin (Dilantin)

Interaction Rating=Moderate Be cautious with this combination.

Indian long pepper contains a chemical called piperine. The piperine in Indian long pepper might increase how much phenytoin the body absorbs. This might increase the effects and side effects of phenytoin.

Propranolol (Inderal)

Interaction Rating=Moderate Be cautious with this combination.

Indian long pepper contains a chemical called piperine. The piperine in Indian long pepper might increase how much propranolol the body absorbs. This might increase the effects and side effects of propranolol.

Rifampin (Rifadin)

Interaction Rating=Moderate Be cautious with this combination.

Indian long pepper contains a chemical called piperine. The piperine in Indian long pepper might increase how much rifampin the body absorbs. This might increase the effects and side effects of rifampin.

Theophylline

Interaction Rating=Moderate Be cautious with this combination.

Indian long pepper contains a chemical called piperine. The piperine in Indian long pepper might increase how much theophylline the body absorbs. This might increase the effects and side effects of theophylline.

Interactions with herbs & supplements

Herbs and supplements that might lower blood sugar: Indian long pepper might lower blood sugar. Taking it with other supplements with similar effects might lower blood sugar too much. Examples of supplements with this effect include aloe, bitter melon, cassia cinnamon, chromium, and prickly pear cactus.
Herbs and supplements that might slow blood clotting: Indian long pepper might slow blood clotting and increase the risk of bleeding. Taking it with other supplements with similar effects might increase the risk of bleeding in some people. Examples of supplements with this effect include garlic, ginger, ginkgo, nattokinase, and Panax ginseng.
Rhodiola: Indian long pepper contains a chemical called piperine. Piperine might reduce the effects of rhodiola in the body.
Scotch broom: Indian long pepper contains a chemical called piperine. Scotch broom contains a chemical called sparteine. The piperine in Indian long pepper might increase how much sparteine the body absorbs from Scotch broom. The higher levels of sparteine can be harmful.

Interactions with foods

There are no known interactions with foods.
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This monograph was last reviewed on 17/10/2023 11:00:00 and last updated on 24/12/2012 22:12:53. Monographs are reviewed and/or updated multiple times per month and at least once per year.
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