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Can you take doxycycline and phentermine at the same time

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Can you take doxycycline and phentermine at the same time?

  • guest says:

    (Sorry, I submitted this answer while wasn’t signed in-I’m cmasjy)

    Trust me, I learned the hard way this morning!
    I was prescribed Doxycycline Hyclate 100mg to treat acne. I use Phentermine 37.5 tabs off and on to suppress cravings. On my Doxycycline directions, it states that it works best when taken on an empty stomach for effectiveness. The Phentermine usually gives an option to take 1 hour before or after breakfast, which I usually take before. Well, I decided to take them both @ the same time today (approxiamately 5 minutes apart) and began to feel nauseous after 1 minute. This in turn lead to an abrupt “bathroom break”, which was short-lived, because that nausea quickly turned into vomiting, so I had to get up and run to the sink lol. After my untimely episodes, I ran to read the drug interactions on the Doxycycline print out and it states: ” Take this medication 2-3 hours before or after taking any medications containing magnesium, aluminum, calcium, iron, or zinc…” I read the Phentermine ingredients online and it does contain Magnesium Stearate and aluminum in one of the ingredients used to make the color.
    Note: I have taken these prescriptions on the same day before, but hours apart, so that’s why I didn’t see any harm in taking them together and I was WRONG! This is coming from a Certified Medical Assistant, so even those in the medical field make slow moves lol. You should be fine if you allow 2-3 hours to lapse between the two. Remember to always read the drug interactions & ingredients on all medications. Usually your healthcare provider will let you know if there’s a possibility of drug interaction with multiple rx’s. I hope this helped you.