Black Widow
by Hi-Tech Pharmaceuticals · capsule · 90 ct
- Off the market since January 2018 (NIH)
- UPC 8 57084 00057 6
- DSLD label 48170
- Serving 1 capsule
- 90 servings
Black Widow by Hi-Tech Pharmaceuticals lists 11 ingredients, 3 with an amount per serving of 1 capsule, such as 150 mg of caffeine; 8 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on August 25, 2015.
What is in Black Widow?
Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Proprietary Blendas Extend-Rx Technologies, Thermo-RxProprietary Blend (Form: with Thermo-Rx, and Extend-Rx Technologies) | 410 mg | ||
| Ephedra extract | 25 mg | ||
| Acacia rigidula extract | in the blend, no amount given | ||
| Theobroma Cocoa extract | in the blend, no amount given | ||
| Phenylethylamine HCl | in the blend, no amount given | ||
| Citrus aurantium extract | in the blend, no amount given | ||
| Synephrine | 20 mg | 64% of 129 products listing synephrine give more (median 25 mg). Per day at the most servings: 60 mg. | |
| Green Tea extract | in the blend, no amount given | ||
| 1,3-Dimethylamylamine | in the blend, no amount given | ||
| Yohimbe extract | in the blend, no amount given | ||
| Naringen | in the blend, no amount given | ||
| Caffeineas Caffeine Anhydrous | 150 mg | 57% of 3,358 products listing caffeine give more (median 200 mg). Per day at the most servings: 450 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 48170 (entered August 25, 2015), version 9.4.0. See the label on DSLD. Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient; 8 ingredients sit inside a blend, so their amounts cannot be compared.
The NIH database records 3 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
The products whose ingredient lists overlap most with Black Widow's, rare ingredients counting for more.
- StimerexHi-Tech Pharmaceuticals · off the market 9 shared, 70% alike
- Stimerex-ES w/ 25 mg Ephedra ExtractHi-Tech Pharmaceuticals 10 shared, 66% alike
- ECA XtremeHi-Tech Pharmaceuticals 8 shared, 61% alike
- Stimerex-ESHi-Tech Pharmaceuticals · off the market 9 shared, 49% alike
- Yellow Scorpion W/ 25 mg Ephedra ExtractHi-Tech Pharmaceuticals 7 shared, 46% alike
- Lipodrene HardcoreHi-Tech Pharmaceuticals 10 shared, 43% alike
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- Dosage: Take 1 capsule three times daily.
- Warnings
- Do not exceed 4 capsules in any 24-hour period.
- Warning: Not for use by individuals under the age of 18 years.
- Talk to your doctor about this product.
- Sale to persons 17 years of age or younger is prohibited.
- Tamper Evident Do not use if printed seal is cut, torn or missing
- Do not use if you are pregnant or nursing. This product can raise blood pressure and interfere with other drugs you may be taking.
- Individuals who consume caffeine with this product may experience serious adverse health effects. Individuals who are sensitive to the effects of caffeine should consult a licensed health care professional before consuming this product. Individuals who are sensitive to the effects of caffeine should consult a doctor before consuming this product.
- Do not consume synephrine or caffeine from other sources, including but not limited to, coffee, tea, soda or other dietary products or medications containing caffeine or phenylephrine.
- Do not use for more than 8 weeks.
- Consult with your physician prior to use if you are taking medication, including but not limited to MAOI inhibitors, aspirin, antidepressants, nonsteroidal anti-inflammatory drugs or products containing phenylephrine ephedrine, pseudoephedrine, or other stimulants.
- Consult your physician prior to use if you have a medical condition, including but not limited to, heart, liver, kidney, or thyroid disease, psychiatric or epileptic disorders, difficulty urinating, diabetes, high blood pressure, cardiac arrhythmia, recurrent headaches, enlarged prostate or glaucoma. Discontinue 2 weeks prior to surgery or if you experience rapid heart beat, dizziness, severe headache or shortness of breath. In case of accidental overdose, seek professional assistance or contact a poison control center immediately. Avoid alcohol while taking this product. Exceeding recommended serving may cause serious adverse health effects, including heart attack and stroke. Improper use of this product may be hazardous to a persons health.
Source: label statements in DSLD label 48170.
What else is on the label?
Other ingredients: Dicalcium Phosphate, Sodium Starch Glycolate, Magnesium Stearate, Silica, FD&C Blue #1, FD&C Red #40, FD&C Yellow #6.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): HTP HI-TECH PHARMACEUTICALS.
How many labels does Black Widow have?
2 labels are on file under this name since May 24, 2013: other sizes, label designs and reformulations. The current one leads this page.
- Label 48170 (current) Entered August 25, 2015 · off the market January 26, 2018 · 90 ct · UPC 8 57084 00057 6
- Label 19291 Entered May 24, 2013 · off the market July 24, 2015 · 90 ct · UPC 8 57084 00057 6
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Hi-Tech Pharmaceuticals, Inc. (manufacturer), Norcross, GA. All Hi-Tech Pharmaceuticals products.