what is the side effect of over dose of vitamin A?
459529
Too much vitamin A can be harmful or fatal. The body converts the dimerized form, carotene, into vitamin A as it is needed, therefore high levels of carotene are not toxic compared to the ester (animal) forms. The livers of certain animals, especially those adapted to polar environments, often contain amounts of vitamin A that would be toxic to humans. The first documented death due to vitamin A poisoning was Xavier Mertz, a Swiss scientist who died in January 1913 on an Antarctic expedition that had lost its food supplies and fell to eating its sled dogs. Mertz consumed lethal amounts of vitamin A by eating the dogs' livers. The liver of the polar bear also has enough vitamin A to kill a human being, or enough to make even sled dogs very ill.\n\nExcess vitamin A has also been suspected to be a contributor to osteoporosis. This seems to happen at much lower doses than those required to induce acute intoxication. Only preformed vitamin A can cause these problems, because the conversion of carotenoids into vitamin A is downregulated when physiological requirements are met. An excessive uptake of carotenoids can, however, cause carotenosis.\n\nThe carotenoid beta carotene was interestingly associated with an increase in lung cancer when it was studied in a lung cancer prevention trial in male smokers. In non-smokers, the opposite effect has been noted.\n\nAlthough cases of vitamin A toxicity have been reported in arctic explorers and some people taking large doses of synthetic vitamin A for long periods of time, pregnant women require large amounts of vitamin A from preferably natural animal sources, such as liver, raw (non-pasteurized) butter, and cod liver oil. However excess in retinoid form must at all costs be avoided due to its well known teratological effects.
506754
Navigate this..http://www.naturalessentials.com/relafen.htm\nit'll tell you all of the side effects of relafen.
353223
It shouldn't have any effect as vitamins are perfectly natural. Speak to your doctor if you're concerned. The only thing I can think of is that your body is producing more iron after taking iron tablets but that shouldn't be a problem. In fact, Vitamin E is thought to help reduce pain.
529670
If you are responsible about it, none.\n\nSight effects may include: eye damage, leg pains, arm craps, sprained clicking finger, atrophe of every muscle in the body, refusal to leave the computer to urinate or defecate, retinal bleeding, nausea, indigestion, upset stomach, malnutrition, lowering of school grades, loss of job, and excommunication.\n\nComputers are not for everyone. Consult your doctor before use.\n\nPhAtM4N for more questions
637340
I had my vision correction surgery done about a month ago. So far there is no significant side effects except for I've got my eye-sights back. ^_^\nBut I have been experiencing some dryness and my night vision is somewhat weaker. I would suggest you to consult with an ophthalmologist since each person's vision and healing condition really varies.
836695
Your body NORMALLY gets rid of excess calcium, so too much is not an issue.  I know that Vitamin A is dangerous in high levels and I am not sure about Vitamin D. . .though I recently was told of a common vitamin (can't remember which) that one can take too much of, and for some reason Vitamin D has a bell going off in my head. . .I hope someone here can help you.  BTW. . when you hit 18. . .and those of you who are eligible. . .\n\nVOTE!. . .VOTE!. . .VOTE!. . .VOTE!. . .VOTE!. . .VOTE!. . .VOTE!. . .\n\nPlease visit my 360 page: http://360.yahoo.com/zambranoray...........\n\nThanks
44018
There can be too much of a good thing.  You should not require any additional supplements other than your daily vitamin - especially if you have a relatively healthy diet. Extra vitamin C/E pills can acually harm you if you take too much.  \n\nYou are better off to concentrate on a healthy diet, and maintain a healthy body weight.  This will ensure you are not consuming too many calories.  Try avoiding deep fried foods or refined carbohydrates such as found in candy, deserts, and especially soft drinks.  Keep bread, rice and pasta to small portions as they contain significant amounts of sugar.\n\nSome foods may promote healthy skin if they contain antioxidants and Omega Fatty Acids.  Antioxidants can prevent inflammation, contribute to proper growth of collagen which supports the skin, and prevent accelerated aging thought to occur when antioxidant levels in the body are low.\n\nFruit is an excellent source of antioxidants in the form of polyphenols and vitamin C, which can prevent inflammation and prevent a condition known as oxidative stress.  Berries have the highest antioxidant to sugar ratio and blueberries are top of the list.  This is important because a high sugar content can "cancel out" the effects of the antioxidants. For example orange juice is very high in vitamin C (an antioxidant) and very high in sugar.  So for antioxidants you are better off with berries than you are with sweeter fruits like oranges and  pineapples.  You can still drink OJ or grapfruit juice but limit to a small "shot glass".  Apples are also a good fruit - not too sweet - and a good source of fiber.\n\nOmega fatty acids are good for your skin because they are considered to have anti-inflammatory properties. Salmon is a good source of OFAs, however there are concerns over mercury contamination -especially in salmon grown in fish farms.  So you might want to limit salmon to less than 4 times per month and supplement with walnuts which are another great source of OFAs.\n\nMany people believe that water is good for your skin and overall health, however  you do not need to drink an excessive amount.  In a 2002 American Journal of Physiology review, Heinz Valtin concludes that the average person drinks enough water by drinking only when they are thirsty.  So drink your water but there is no need to guzzle 2 Liters of water per day thats for sure.
1163919
One of the side effects to lipitor is muscle aches and pains.  Your doctor would be checking your blood frequently to be sure there is no muscle or body organ damage.\n\nI take mine at night, and by the next day the pain is over with.  Talk openly with your doctor about these concerns.
563509
This medication may cause nausea, vomiting, headache, dizziness, sleeplessness, or irritability. These effects should disappear as your body adjusts to the medication. If they persist or become severe, inform your doctor promptly.\n\nNotify your doctor immediately if you experience any of the following infrequent side effects: dizziness or fainting, mental/mood changes (e.g., depression, memory loss), sudden severe headache, changes in vision, numbness or tingling in the arms or legs, swelling of the hands or feet, chest pain, shortness of breath, pain in the leg accompanied by swelling/warmth/ redness, changes in vaginal bleeding (spotting, breakthrough bleeding, prolonged or complete stoppage of bleeding).\n\nIf you notice other effects not listed above, contact your doctor or pharmacist.
664445
http://www.hcamax.com/html/relora_side_effects.html
755764
It will not be an overdose. So you are safe.\nVitamin A can accumulate in the liver an cause toxicity. But, this occurs at manyfold higher dose than the RDI. Few other vitamins can cause toxicity. Rarely vit D can. But, you can take a balanced diet and still take vitamin pills.\nMinerals can be toxic but again the dose in pills os extremely low.
802468
You shouldn't alter the dose without consulting your health care provider.  Abrupt cessation of high doses may cause extreme fatigue and mental depression.
409232
Too high of levels of niacin will leave you feeling hot and your skin will turn flush, red, and blotchy. Time realease will prevent overflooding of levels in your system.
911359
The term vitamin comes from vital amine, which means that yor body needs them . If youare getting a varied diet, you probably do not need to take vitamin pills. Vitamins A,D,E, and K are fat soluble. You can get an overdose with too many vitamin pills. The others are water soluble and you can not overdose. What is important is to get the right number of servings of fruits and vegetables, milk products and meat or meat substitutes to be sure you have the needed vitamins. % servings a day for tose fruits and vegetables. 4 servings of grains, 2 meat and 4 milk.
459444
If we are refering to natural sources, no.\nCarrots, for example, contain the precursor of vitamin A (beta-carotene)and this is safe to consume.\nBeta-carotene is stored in the liver and converted in vit.A,as needed.So, you don't have the risk of an excessive amount of vitamin A in your body.\nFor more information, check out this link\nhttp://en.wikipedia.org/wiki/Beta_carotene#Carotenemia\n\nKaterina
1041887
fair skinned bruise easily, not as much clotting factor in your blood, anemic, vitamin deficiency, you may need an iron supplement if you don't eat enough red meat, could be a side effect of taking aspirin.
241539
You could be allergic to that kinda of vitamin