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Dr Basu
Dr Basu, Experienced Specialist
Category: Medical
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Experience:  MD
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Does phentermine hcl loose its strength after 3 years. I

Customer Question

Does phentermine hcl loose its strength after 3 years . I thought you were to take them 3 times a day so for 2 days I took 3. Should I watch for something, and the pills are 3 years olk
Submitted: 1 year ago.
Category: Medical
Expert:  Dr Basu replied 1 year ago.

Hi there,

Phentermine is taken in 2 divided doses.

The total daily dose should not exceed 75 mg.

The medication does lose its strength after one year of date of manufacture.

So the medication may now be about half the strength.

Also there is risk of allergic reaction also from chemical decomposition.

So better to get a new prescription after discussing with your doctor.

Best wishes,
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