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Lactaid Side Effects

Common Lactaid Side Effects


The most commonly reported Lactaid side effects (click to view or check a box to report):

Vomiting (5)
Diarrhoea (3)
Pain (3)
Cholelithiasis (2)
Abdominal Pain Upper (2)
Malaise (2)
Fatigue (2)
Cerebral Infarction (1)
Back Pain (1)
Cerebrovascular Accident (1)
Rhinorrhoea (1)
Discomfort (1)
Product Substitution Issue (1)
Visual Acuity Reduced (1)
Abdominal Pain (1)
Arthralgia (1)
Haematemesis (1)
Fibromyalgia (1)
Economic Problem (1)
Dyspnoea (1)

➢ More



If you or someone in your family has experienced a serious side effect to a health product, you are encouraged to report the experience to your health care professional (e.g. physician, pharmacist). You could also complete a copy of the side effect reporting form or report your side effect to FDA.

Side effects reports are analyzed to discover potential health product safety signals. Some important reactions may take an extremely long time to develop or occur infrequently. Continued monitoring of adverse reactions is thus essential to maintain a comprehensive safety and effectiveness profile of health products.

Lactaid Side Effects Reported to FDA

The following Lactaid reports list potential signals of serious risks and new safety information that were identified using the FDA Adverse Event Reporting System (FAERS).
FAERS is a database that contains information on adverse event and medication errors reports submitted to FDA by healthcare professionals (such as physicians, pharmacists, nurses and others), consumers (such as patients, family members, layers and others) and manufacturers.


The appearance of Lactaid on this list does not mean that FDA has concluded that the drug has the listed risk. It means that FDA has identified a potential safety issue, but it does not mean that FDA has found a causal relationship between the drug and the listed risk.
Vomiting, Diarrhoea, Malaise
This is a report of a 44-year-old male patient (weight: NA) from US, suffering from the following symptoms/conditions: lactose intolerance, who was treated with Lactaid (dosage: As Needed Taken By Mouth, start time: Aug 28, 2013), combined with: NA. and developed a serious reaction and side effect(s). The consumer presented with:
  • Vomiting
  • Diarrhoea
  • Malaise
which developed after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Lactaid treatment in male patients, resulting in vomiting side effect.

Vomiting, Diarrhoea, Hyperhidrosis, Haematemesis
This report suggests a potential Lactaid Fast Act Vomiting, Diarrhoea, Hyperhidrosis, Haematemesis side effect(s) that can have serious consequences. A 38-year-old female patient (weight: NA) from US was diagnosed with the following symptoms/conditions: dyspepsia and used Lactaid Fast Act (dosage: 1 Tablet) starting May 13, 2013. Soon after starting Lactaid Fast Act the patient began experiencing various side effects, including:
  • Vomiting
  • Diarrhoea
  • Hyperhidrosis
  • Haematemesis
Drugs used concurrently: NA.The patient was hospitalized. Although Lactaid Fast Act demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as vomiting, may still occur.

Abdominal Pain Upper, Vomiting, Diarrhoea, Economic Problem
This Abdominal Pain Upper, Vomiting, Diarrhoea, Economic Problem problem was reported by a consumer or non-health professional from US. A 48-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: lactose intolerance,irritable bowel syndrome. On Dec 31, 2012 this consumer started treatment with Lactaid (dosage: 1 Tablet At Each Meal). The following drugs were being taken at the same time: NA. When commencing Lactaid, the patient experienced the following unwanted symptoms/side effects:
  • Abdominal Pain Upper
  • Vomiting
  • Diarrhoea
  • Economic Problem
Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as abdominal pain upper, may become evident only after a product is in use by the general population.

Murphy's Sign Positive, Injury, Pain, Abdominal Pain, Cholelithiasis, Depression
This is a report of a 25-year-old female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: NA and was treated with Lactaid (dosage: NA) starting Mar 21, 2009. Concurrently used drugs:
  • Yasmin (Unk)
  • Drospirenone And Ethinyl Estradiol
  • Drospirenone And Ethinyl Estradiol (Unk)
  • Yasmin
  • Velivet
Soon after that, the consumer experienced the following side effects:
  • Murphy's Sign Positive
  • Injury
  • Pain
  • Abdominal Pain
  • Cholelithiasis
  • Depression
This opens a possibility that Lactaid treatment could cause the above reactions, including murphy's sign positive, and some female subjects may be more susceptible.


Product Substitution Issue, Vomiting
A 25-year-old male patient (weight: NA) from UNITED STATES with the following symptoms/conditions: lactose intolerance started Lactaid Fast Act treatment (dosage: 1 Pill) on Jan 01, 2009. Soon after starting Lactaid Fast Act treatment, the subject experienced various side effects, including:
  • Product Substitution Issue
  • Vomiting
Concurrently used drugs: NA. This finding indicates that some male patients could be more vulnerable to Lactaid Fast Act.

Arthralgia, Hepatic Cirrhosis, Cholelithiasis, Pain, Nephrolithiasis, Fibromyalgia
A female patient from UNITED STATES (weight: NA) experienced symptoms, such as: lactose intolerance,gastrointestinal disorder,abdominal discomfort,vitamin supplementation,prophylaxis,thrombosis prophylaxis,rheumatoid arthritis and was treated with Lactaid(dosage: NA). The treatment was initiated on Jan 01, 2008. After that a consumer reported the following side effect(s):
  • Arthralgia
  • Hepatic Cirrhosis
  • Cholelithiasis
  • Pain
  • Nephrolithiasis
  • Fibromyalgia
Concurrently used drugs, which potentially could have contributed to side effect(s) or affected Lactaid efficacy:
  • Entocort Ec
  • Prevacid
  • Vitamin D
  • Prevacid
  • Aspirin
  • Humira
  • Plaquenil
  • Topamax
The patient was hospitalized.

Memory Impairment, Cerebrovascular Accident, Visual Acuity Reduced, Cerebral Infarction, Cognitive Disorder
In this report, Lactaid was administered for the following condition: NA.A 53-year-old female consumer from UNITED STATES (weight: NA) started Lactaid treatment (dosage: NA) on Sep 01, 2007.Sometime after starting the treatment, the patient complained of the following side effect(s):
  • Memory Impairment
  • Cerebrovascular Accident
  • Visual Acuity Reduced
  • Cerebral Infarction
  • Cognitive Disorder
A possible interaction with other drugs could have contributed to this reaction:
  • Calcium Carbonate
  • Atacand Hct
  • Glipizide (5 Mg, Bid)
  • Vitamin E
  • Lotrel
  • Metformin (500 Mg, Bid)
  • Clarinex (5 Mg, Qd)
  • Astelin (Unk Unk, Prn)
The patient was hospitalized.Establishing a causal relationship between a specific drug and consumer's side effects is complex, but it is possible that in this report Lactaid treatment could be related to the listed above side effect(s).

Lipids Increased, Oropharyngeal Pain, Fatigue, Back Pain, Rhinorrhoea
This is a report of the following Lactaid side effect(s):
  • Lipids Increased
  • Oropharyngeal Pain
  • Fatigue
  • Back Pain
  • Rhinorrhoea
A 15-year-old female patient from UNITED STATES (weight: NA) presented with the following condition: NA and received a treatment with Lactaid (dosage: NA) starting: Oct 04, 2010.The following concurrently used drugs could have generated interactions:
  • Amnesteem
  • Albuterol
  • Motrin
  • Multi-vitamin
  • Amnesteem
This report suggests that a Lactaid treatment could be associated with the listed above side effect(s).

Vomiting
This Lactaid Fast Act Mcneil Nutritionals report was submitted by a 11-year-old female consumer from UNITED STATES (weight: NA). The patient was diagnosed with: lactose intolerance and Lactaid Fast Act Mcneil Nutritionals was administered (dosage: 1 Chewable Tablet One Tablet Po, One Evening) starting: May 21, 2010. The consumer developed a set of symptoms:
  • Vomiting
Other drugs used simultaneously: NA.Those unexpected symptoms could be linked to a Lactaid Fast Act Mcneil Nutritionals treatment, however establishing a potential drug-safety problem requires a more detailed clinical analysis.

Abdominal Pain Upper, Chest Pain, Chills, Discomfort, Dyspnoea, Fatigue, Malaise, Muscle Spasms
This is a report of a possible correlation between Lactaid Fast Act Ultra Mcneil Nutritionals use and the following symptoms/side effect(s):
  • Abdominal Pain Upper
  • Chest Pain
  • Chills
  • Discomfort
  • Dyspnoea
  • Fatigue
  • Malaise
  • Muscle Spasms
which could contribute to an assessment of Lactaid Fast Act Ultra Mcneil Nutritionals risk profile.A 42-year-old female consumer from UNITED STATES (weight: NA) was suffering from NA and was treated with Lactaid Fast Act Ultra Mcneil Nutritionals (dosage: 1 Pill Every Time W/ Dairy Po) starting Dec 27, 2009.Other concurrent medications: NA.



Top 10 Lactaid Side Effects for Women

Women Side EffectsReports
Pain 3
Vomiting 3
Abdominal Pain Upper 2
Cholelithiasis 2
Diarrhoea 2
Fatigue 2
Abdominal Pain 1
Arthralgia 1
Back Pain 1
Cerebral Infarction 1

Top 10 Lactaid Side Effects for Men

Men Side EffectsReports
Vomiting 2
Diarrhoea 1
Malaise 1
Product Substitution Issue 1

Keep Track of Side Effects

Note Your Observations

It is really important to keep of your symptoms, right from the time you start a new medicine. You can do it any way you prefer: in a notebook, in a computer file or using our online tool. You should also note down any other medicines you are taking at the same time, because there could be an interaction between these medicines.

Why Your Notes are Important

Your notes could be helpful in several ways:

  • You can use them to remind you of details that may alert your health care professional(s) to a problem
  • You will have a record to refer to in the future, in case you are ever prescribed the same medicine again

  • Log Form

    You can use the following log form to write down important information, like the date and time you experienced a side effect and your symptoms, how strong the symptoms were, and any other medicines you were using.

    Medicine Name and Dosage:
    Side Effects Scale Date & Time Other Medicine(s) or Treatment(s)
    Scale: 1 = very mild to 10 = very bad

    You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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    Lactaid Safety Alerts, Active Ingredients, Usage Information

    More About Lactaid

    Side Effects reported to FDA: 10

    Lactaid safety alerts: No

    Reported hospitalizations: 2

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