Does the Amount of Dysport Affect How Long It Lasts?

Very good quesion, but it is not clear why your forehead was dosed if you wanted the frown lines (glabella area) dosed.  Lines that are horizontal are a result of forehead movement.  Lines that are vertical between the brows are a different muscle group than the forehead.  With that said, make certain that the practitioner understood your treatment goals.

In our experience and that of studies, dosing does have a direct correlation on duration.  Underdosing not only affects outcomes, it may also shorten duration of those outcomes.  Think of it as the treatment being able to get a good sprint but cannot finish the marathon. 

Above all else, dosing should be based primarily on each patient's treatment goals and appropriate need at the time of treatment.  With consistent treatments, one's needs should be less or duration extended.

 

The length of action of Botox and Dysport are not dependent on the dose.  The dose only affects the effect.  However the duration of effect will be the same regardless of dose.  So, the Dysport should last about as long as it did the first time you had it injected.

 

 

Dysport, like Botox Cosmetic, are both serotype A botulinum toxins, and both have a similar duration of action – typically 3-6 months with an average of about 4 months. Many patients who have been treated with both products say that the Dysport works a few days sooner then the Botox; but I have not seen any difference in the overall duration of action.

The recommended dose of Dysport for the treatment of glabellar frown lines is 50 units, the dose used in the FDA trials. This dose works well, but I have found that many patients have better results with 60 units. If 40 units works well for you there is no reason to change/increase the dose. And after a certain point, more toxin is not better, it’s just wasted.

The fact that you are happy with your results 8 months later is fantastic. Although, I would suggest that the Dysport has been completely metabolized and your continued results are related more to a modification of what muscles you are using for expression. Following treatment with a botulinum toxin, a few patients (subconsciously) modify their expression and use the treated muscles less.

Initially, some patients either don’t understand the difference or may be a bit vague in their description of what areas they want treated. If there is doubt I use a mirror to allow the patient to point to exactly what they are referring to. There is a definite anatomic difference between treating the ‘frown lines’ and the ‘forehead’, and what subsequently may happen to the eyebrow position. I, personally, like to achieve near complete inactivity of the glabellar muscles (frown lines), but I am lighter in my treatment of the frontalis muscle (forehead lines) because I don’t like to drop the eyebrow position (eyebrow ptosis). If your doctor used 75 units of Dysport to treat both your frown lines and transverse forehead lines, that might be an appropriate amount; but it sounds as if the distribution of its placement should have been different. If your doctor used 75 units of Dysport to treat just your forehead, I would consider that too large a dose for the majority of patients.

It appears the physician who treated you initially did a fine job, and perhaps you have already considered going back to him/her when you need treatment in the future. Best wishes

The recommended dosage of Dysport for glabellar (frown) lines is 50 units, which typically last four to four and a half months. Younger people can get longer results.

You don't list your age or how long after your treatment you noticed your results. The forehead is an off label use of Dysport, but 75 units is not an unreasonable amount. With this amount of Dysport,over your entire forehead you should expect similar duration as you had in your frown lines. If you had injections directly over your eye brows, you may be scowly for two to three weeks. I generally avoid injecting directly over the brows so they still have movement and look natural.

Yes, the amount of Dysport (abobotulinumtoxinA) administered can affect how long its effects last. Dysport is a type of botulinum toxin injection used for cosmetic purposes, such as reducing the appearance of facial wrinkles, including frown lines between the eyebrows.The longevity of Dysport's effects depends on various factors, including:1. Dosage: The amount of Dysport injected can influence both the intensity and duration of its effects. Higher doses may produce more pronounced effects but could also lead to a faster metabolism of the toxin by the body, potentially resulting in a shorter duration of action.2. Treatment Area: The specific area being treated with Dysport can impact how long the results last. For example, areas with stronger muscles or more dynamic movement may require higher doses and may see more rapid dissipation of the effects compared to areas with weaker muscles or less movement.3. Individual Metabolism: Each person's metabolism and response to botulinum toxin injections can vary. Factors such as metabolism rate, muscle activity, and overall health can influence how quickly the body breaks down and eliminates the toxin, affecting the duration of its effects.4. Injection Technique: The skill and technique of the injector can also play a role in the longevity of Dysport's effects. Proper placement and dosage are essential for achieving optimal results and prolonging the duration of the treatment.Overall, while the amount of Dysport administered can impact how long its effects last, it's essential to work closely with a skilled and experienced healthcare provider who can tailor the treatment to your specific needs and goals. They can determine the appropriate dosage and injection technique to achieve the desired results while maximizing the longevity of the treatment. Additionally, maintaining regular follow-up appointments for touch-up treatments as needed can help sustain the effects over time.

The dose of the neurotoxin is related to how long it lasts.  In general, the more Dysport given, the longer it could last.  But, we always want to achieve the ideal aesthetic result which is usually to soften the lines and reshape the face, rather than just freeze it.  If the forehead is very frozen and the furrows were not treated significantly, sometimes treating the furrows as a touch up may help to make the forehead appear less frozen and the brows less droopy.  In addition, there’s a slight variation on how each patient reacts to the neurotoxin.  So sometimes the dosing can vary slightly.  If a high dose is used, it may take a little bit longer to go away, but eventually it will completely dissipate.

The overall effect of Dysport could last for 6 months, and at times longer, based on my experience. However, a lot of the sensation you are currently feeling of not being able to raise your eyebrows (which tends to be more pronounced during your first injection of this area) should wear off in the next few weeks. You will soon regain some additional movement of the eyebrows, and will probably be very happy to enjoy the next several months free of forehead lines. Be patient. I think you will probably have a very nice outcome.

In order to achieve a maximal benefit with Dysport for the treatment of a specific muscle, one must use the correct number of units to achieve that maximal result. If you use more units than that, there would be no appreciable difference--it would likely not last longer.  If one was below the maximal benefit, then using more units would increase the effect (better paralyze the muscle) and/or it would last longer. 

Lets think of a see saw at a playground. If a boy sits on one side and he weighs 75 pounds, I need to put a child weighing more than 75 pounds on the other side to raise him in the air. If I put a 300 pound Sumo wrestler on the other side the result would be the same as an 80 pound boy as once the original 75 pound boy is all the way up in the air, adding more weight to the other side will not raise him up any further.

Don't worry, your Dysport will probably last no longer than it did last time. I do find that sometimes a little more , injected IN THE SAME AREA, does last a bit longer but yours was spread further out which does not effect longevity. Maybe will last an even shorter time.  

You had a good result with the first doctor. Why did you go to another doctor the second time?????

Treating the frown lines does not include injecting the entire forehead???????????????

The forehead is for the tansverse lines on the forehead. and the forehead muscle need much less neurotoxin, it is a very sensitive muscle and complte paralysis of the forehead muscle ( FRONTALIS) will result in brow drooping.

No antidote, effect will last 4-6 months