Panbesy Special Precautions

Tolerance: Tolerance to the anorectic effect usually develops within a few weeks. When this occurs, the recommended dose should not be exceeded in an attempt to increase the effect: rather the drug should be discontinued.
Caution is to be exercised in prescribing Phentermine hydrochloride for patients with even mild hypertension. Insulin requirements in diabetes mellitus may be altered in association with the use of Phentermine hydrochloride and the concomitant dietary regimen. Phentermine hydrochloride may decrease the hypotensive effect of guanethidine. The least amount feasible should be prescribed or dispensed at one time in order to minimize the possibility of overdosage. The possibility of abuse of Phentermine hydrochloride should be kept in mind when evaluating the desirability of including the drug as part of a weight reduction program.
Effects of ability to drive and use of machinery: Phentermine may cause blurred vision, dizziness or tiredness in some patients.
Use in Children: The administration of Panbesy should be avoided in children under the age of 12 years.