What's in phentermine?

Phentermine itself is the active drug in these products. The active ingredient is phentermine, usually given as phentermine hydrochloride (a salt form). It’s a short-term appetite-suppressant (a stimulant-like, amphetamine-derivative).

What else it contains:
- In addition to the active phentermine hydrochloride, tablets or capsules include various inactive ingredients (excipients) that vary by brand and dosage form. These can include binders, fillers, disintegrants, lubricants, coloring agents, flavorings, and sometimes sweeteners (for disintegrating tablets).
- Common categories you might see across products: fillers/binders (like microcrystalline cellulose or lactose), disintegrants (like crospovidone or starch derivatives), lubricants (like magnesium stearate), and colorants or flavorings.

If you tell me a specific product name (e.g., Adipex-P, Lomaira, Suprenza, etc.) or the dosage form, I can list the exact ingredients from the label. If you’re checking for allergies or drug interactions, always refer to the product’s patient label or consult a pharmacist or clinician.