Phentermineinteractions
phentermine hydrochloride 15 MG Oral Capsule
This is the interactions section of this product’s FDA label — what the manufacturer documented for this drug. It is not a check of your medication list, and a drug missing from it has not been cleared: licensed clinical databases list far more interactions than any single label does. Before combining medicines, ask a pharmacist, who can check everything you take at once and will do it for free.
Named on this label
Every name above is printed in the text below. This is not the full set of drugs that interact with this one — it is the set this manufacturer wrote down.
Drug interactions
Monoamine oxidase inhibitors: Risk of hypertensive crisis.
Alcohol: Consider potential interaction Insulin and oral hypoglycemics: Requirements may be altered.
Adrenergic neuron blocking drugs: Hypotensive effect may be decreased by phentermine.
7.1 Monoamine
Oxidase Inhibitors Use of phentermine is contraindicated during or within 14 days following the administration of monoamine oxidase inhibitors because of the risk of hypertensive crisis.
7.2 Alcohol
Concomitant use of alcohol with phentermine may result in an adverse drug reaction.
7.3 Insulin and
Oral Hypoglycemic Medications Requirements may be altered.
7.4 Adrenergic
Neuron Blocking Drugs Phentermine may decrease the hypotensive effect of adrenergic neuron blocking drugs.
Text above is quoted in full from the FDA-approved drug label published by openFDA, effective December 2, 2025. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.
This page reproduces regulatory text for reference. It is not medical advice, and KenyRx is not a pharmacy or a prescriber. Talk to a doctor or pharmacist about whether a medicine is right for you.
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