Anyone have trouble with bubbles on Forteo pen needle?

Posted by drsuefowler @drsuefowler, 4 days ago

I just started Forteo a week ago. Before that I was on Tymlos. I follow the Forteo directions on how to inject the medication, but after I am done injecting, there are 2 or 3 bubbles on the needle. I called Eli Lilly, but they just said bubbles are okay. My concern is I am not getting all the medicine. Forteo instructions do not include wasting a dose at first and flicking away the bubbles like Tymlos does. There are only 28 Forteo doses for 28 days. Does anyone have a suggestion?

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You are having air bubbles inside the syringe (medicine cartridge), right?

I've encountered one Forteo pen which had one small bubble. Did not really know where it came from or when it first appeared.. there did not appear a way to get rid of it. I used that pen without any further problem - the little bubble stayed in the pen throughout the remaining injection period.

One thing I can assure you: each pen has more than 28 doses, actually about 3-4 extra doses after you complete 28 day injection. However, the manufacturer says to discard the pen after 28 days of use. I think you could keep an eye on those bubbles in the pen. If more bubbles appear or existing ones get bigger which may be indicative of a faulty pen, contact the specialty pharmacy or manufacturer to see if you could get a replacement.

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@mayblin

You are having air bubbles inside the syringe (medicine cartridge), right?

I've encountered one Forteo pen which had one small bubble. Did not really know where it came from or when it first appeared.. there did not appear a way to get rid of it. I used that pen without any further problem - the little bubble stayed in the pen throughout the remaining injection period.

One thing I can assure you: each pen has more than 28 doses, actually about 3-4 extra doses after you complete 28 day injection. However, the manufacturer says to discard the pen after 28 days of use. I think you could keep an eye on those bubbles in the pen. If more bubbles appear or existing ones get bigger which may be indicative of a faulty pen, contact the specialty pharmacy or manufacturer to see if you could get a replacement.

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Thanks @mayblin. The bubbles are on the needle after I give myself a shot. Since you wrote there is extra medicine, I will try the procedure I used with Tymlos. It was to inject a dose into the air and flick the pen.

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@drsuefowler

Thanks @mayblin. The bubbles are on the needle after I give myself a shot. Since you wrote there is extra medicine, I will try the procedure I used with Tymlos. It was to inject a dose into the air and flick the pen.

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Hi @drsuefowler i misunderstood. I thought the bubbles you saw were air bubbles inside the barrel of the syringe pen.

Do you mean you saw some droplets remained at the tip of the tiny pen needle after injection?

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Yes, they were on the tip of the needle after the injection.

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@drsuefowler

Yes, they were on the tip of the needle after the injection.

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This happened to me too - a droplet at the tip of the pen needle after injection was done, not often. Occasionally, there would be a small droplet came out from skin injection site, even i let the needle remain under the skin for about 10 seconds after injection. I thought it might be due to the pressure imbalances in either case.

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@drsuefowler

Yes, they were on the tip of the needle after the injection.

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@drsuefowler
I have experienced the same thing with Tymlos. Interestingly, it stopped when I kept the needle in for a count of twenty after injection, with Walgreens brand 31 gauge, 8 mm pen needles. I just ran out of them, and started using the BD (Becton Dickinson) needles of same size, and am once again experiencing the droplet at the end of the needle—no matter how long I leave it in. I am, however, at the end of the pen and will soon start a new one and am wondering if that could have an impact. Interesting!

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@mayblin

You are having air bubbles inside the syringe (medicine cartridge), right?

I've encountered one Forteo pen which had one small bubble. Did not really know where it came from or when it first appeared.. there did not appear a way to get rid of it. I used that pen without any further problem - the little bubble stayed in the pen throughout the remaining injection period.

One thing I can assure you: each pen has more than 28 doses, actually about 3-4 extra doses after you complete 28 day injection. However, the manufacturer says to discard the pen after 28 days of use. I think you could keep an eye on those bubbles in the pen. If more bubbles appear or existing ones get bigger which may be indicative of a faulty pen, contact the specialty pharmacy or manufacturer to see if you could get a replacement.

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They will replace it, so will tymlos, least that was my experience. I'm on Tymlos now, bubbles frequently. I flick and keep priming more than one time.

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@garycorb

They will replace it, so will tymlos, least that was my experience. I'm on Tymlos now, bubbles frequently. I flick and keep priming more than one time.

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Thanks @garycorb. I will contact Eli Lilly again.

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@babbsjoy

@drsuefowler
I have experienced the same thing with Tymlos. Interestingly, it stopped when I kept the needle in for a count of twenty after injection, with Walgreens brand 31 gauge, 8 mm pen needles. I just ran out of them, and started using the BD (Becton Dickinson) needles of same size, and am once again experiencing the droplet at the end of the needle—no matter how long I leave it in. I am, however, at the end of the pen and will soon start a new one and am wondering if that could have an impact. Interesting!

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@babbsjoy, This is interesting. Apparently, it happens quite a bit. I have the same size needles from BD. I will try holing it in to the count of 20 and see if that helps. Thanks

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